start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Large-scale rainfall characteristics at the heavy rainfall event around the western Japan during 5?7 July 2018
kn-title=2018年7月5日?7日の西日本豪雨における広域降水特性
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Large-scale rainfall characteristics at the heavy rainfall event around the western Japan for 5?7 July 2018 were analyzed with use of the 10-mimute precipitation data at the surface meteorological observation stations of the Japan Meteorological Agency, and so on. In this case, the area with 3 days total precipitation of near or more than 300 mm was distributed widely from northern Kyushu to Shiga and Fukui Prefectures. As in the many heavy rainfall events around Kyushu District in the mature stage of the Baiu season, contribution of the intense rainfall with more than 4 mm/10-minute (24 mm/h) attained about one third of the areal mean total precipitation. However, it is noted that the "not so intense rain" with less than 2 mm/10-minute (12 mm/h) also contributed to about one third of the huge total precipitation in the wide area. In short, this case could be characterized by the mixture of the western Japan type heavy rainfall event and the eastern Japan type one.
en-copyright=
kn-copyright=

en-aut-name=KATOKuranoshin
en-aut-sei=KATO
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=MATSUMOTOKengo
en-aut-sei=MATSUMOTO
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=2
ORCID=

en-aut-name=OTANIKazuo
en-aut-sei=OTANI
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学学術研究院教育学域（理科）

affil-num=2
en-affil=Okayama Gakugeikan High School
kn-affil=岡山学芸館高等学校

affil-num=3
en-affil=TV Setouchi Broadcasting Co., LTD.
kn-affil=テレビせとうち(株)
en-keyword=western Japan heavy rainfall in July 2018
kn-keyword=western Japan heavy rainfall in July 2018
en-keyword=10-minute precipitation data
kn-keyword=10-minute precipitation data
en-keyword=east-west difference of the Baiu precipitation
kn-keyword=east-west difference of the Baiu precipitation
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A trial of lesson practice at the university on the variety of heavy rainfall characteristics based on the 10-minute precipitation data toward promoting the meteorological disaster prevention literacy
kn-title=10分間降水量から大雨の特徴の多様性を捉える大学での授業の試み（防災気象リテラシー育成へ向けて）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　In the disaster prevention education on the heavy rainfall around Japan, it is also important to promote the meteorological literacy on the seasonal and regional differences of their rainfall characteristics such as the convective rain or stratiform rain, together with their total amount of precipitation and their occurrence frequency. As the first step toward the above purpose, the present study made a lesson practice for the university students by utilizing the 10-minute precipitation data for the four heavy rainfall events, in which the types of the heavy rainfall (although all the cases examined in the lesson are relating to the deep convective clouds) are rather different from each other, such as the differences of the rainfall intensity at the peak time, short-period variation of the rainfall intensity and the persistency of the rainfall including the "not so intense rainfall". The reports by the students seem to perceive the different features among these events briefly, but the students' attention to how long the intense rainfall with short-period variation or "not so intense rainfall" lasted was not so sufficient.
en-copyright=
kn-copyright=

en-aut-name=KATOKuranoshin
en-aut-sei=KATO
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

affil-num=1
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学学術研究院教育学域（理科）
en-keyword=disaster prevention education
kn-keyword=disaster prevention education
en-keyword=variety of the heavy rainfall characteristics
kn-keyword=variety of the heavy rainfall characteristics
en-keyword=meteorological disaster prevention literacy
kn-keyword=meteorological disaster prevention literacy
en-keyword=use of the 10-minute precipitation data
kn-keyword=use of the 10-minute precipitation data
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=19
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Petrological study of Sue ware from the Sabukaze kiln site, Okayama Prefecture
kn-title=寒風古窯跡群須恵器の岩石学的研究
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　The Sabukaze kiln site, a representative ancient tunnel-kiln site in the Kibi region, worked during the Asuka period (from early 7th century to early 8th century) to produce Sue ware including jars, cups, coffins, and ornamental tiles. To determine the provenance of the materials used for the Sue ware, we carried out petrological analyses of 13 Sue sherds, including optical microscopy, X-ray diffractometry, X-ray fluorescence spectroscopy, Raman spectroscopy, and electron-probe analysis. In spite of the difference of production time, all the Sue sherds show close similarities in modal proportion of mineral inclusions with dominant quartz and feldspar, and minor volcanic glass, in chemical compositions of feldspar and interstitial matrix, and in whole-sherd chemical composition. These similarities suggest that the paste materials of the Sabukaze Sue ware were commonly derived from weathered rhyolitic rocks and obtained from the same or neighboring mining site(s) located near the kiln site.
en-copyright=
kn-copyright=

en-aut-name=ANAMITaiji
en-aut-sei=ANAMI
en-aut-mei=Taiji
kn-aut-name=阿南太士
kn-aut-sei=阿南
kn-aut-mei=太士
aut-affil-num=1
ORCID=

en-aut-name=NOZAKAToshio
en-aut-sei=NOZAKA
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=2
ORCID=

en-aut-name=KIMURAOsamu
en-aut-sei=KIMURA
en-aut-mei=Osamu
kn-aut-name=木村理
kn-aut-sei=木村
kn-aut-mei=理
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院環境生命自然科学研究科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域

affil-num=3
en-affil=Department of Archaeology, Osaka University
kn-affil=大阪大学考古学研究室
en-keyword=Sabukaze kiln site
kn-keyword=Sabukaze kiln site
en-keyword=Sue ware
kn-keyword=Sue ware
en-keyword=provenance
kn-keyword=provenance
en-keyword=petrology
kn-keyword=petrology
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=7
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Microtremor exploration in Kojima Bay area, Okayama Plain
kn-title=岡山平野児島湾岸部での微動アレイ探査
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　This report describes microtremor array observations conducted at two sites for deep exploration and three sites for shallow exploration around Kojima Bay area in the southern Okayama Plain. Based on these records, the ground velocity structures were estimated. The results yielded solutions indicating the depth of the top of the seismic base layer (equivalent to 3 km/s layer) ranges from 140 to 300 m, while the depth of the top of the engineering basement layer (equivalent to 0.6 km/s layer) is approximately about 13?14 m. The shallow exploration results also suggested the possible presence of an inversion layer. These estimated velocity structure models provided a reasonable explanation for the observed phase velocities.
en-copyright=
kn-copyright=

en-aut-name=YAMADANobuyuki
en-aut-sei=YAMADA
en-aut-mei=Nobuyuki
kn-aut-name=山田伸之
kn-aut-sei=山田
kn-aut-mei=伸之
aut-affil-num=1
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Faculty of Science and Technology, Kochi University
kn-affil=高知大学理工学部地球環境防災学科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
en-keyword=Okayama Plain
kn-keyword=Okayama Plain
en-keyword=Kojima Bay
kn-keyword=Kojima Bay
en-keyword=Microtremor array exploration
kn-keyword=Microtremor array exploration
en-keyword=S-wave velocity structure model
kn-keyword=S-wave velocity structure model
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=32
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2026
dt-pub=20260331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=15
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Improved sedimentary layer model including the accretionary prism in the fore-arc region of the Ryukyu arc, Japan
kn-title=南西諸島の前弧域における付加体を含む堆積層のモデル化
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　We combine the recent seismic reflection profiles to construct a new seismic velocity model of the sedimentary layer incorporating the accretionary prism along the Ryukyu trench. In constructing the new model, we refer to the zoning (ZONE1 to ZONE4) identified by Okamura et al. (2017, Tectonophys.). The construction process consists of the following steps: First, we digitize either unconformities or VP=4 to 5 km/s lines as the seismic basement, whichever is more clearly identifiable. Second, the digitized thickness data of the sedimentary layer from the reflection profiles are geometrically modeled and interpolated to make the three-dimensional structure model. Finally, we supplement the external region of the constructed 3-D sedimentary model using the J-SHIS model provided by the NIED to complete the velocity structure model in the entire Ryukyu arc. The main features of our model are as follows: In ZONE1, off Ishigaki-jima island, the thick sedimentary layer extends about 50 km wide from the Ryukyu trench. In ZONE2, off Miyako-jima island, the thinner layer compared to the other zones is found near the trench, with a thin sedimentary terrace covering the area behind it. In ZONE3, off Okinawa-jima island, the sedimentary layer deepens as it approaches the trench. In ZONE4, off Tokara islands, the deepest layer among all zones is identified. We then conduct 3-D finite-difference simulations of seismic wave propagation using the new and the previous models to confirm the improvement of the new model. In the simulations, the effects of the accretionary prism along the Ryukyu trench on the seismic wave propagation are clearly identified.
en-copyright=
kn-copyright=

en-aut-name=KOMATSUMasanao
en-aut-sei=KOMATSU
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=1
ORCID=

en-aut-name=URAKAMISohei
en-aut-sei=URAKAMI
en-aut-mei=Sohei
kn-aut-name=浦上想平
kn-aut-sei=浦上
kn-aut-mei=想平
aut-affil-num=2
ORCID=

en-aut-name=OKAMOTOTaro
en-aut-sei=OKAMOTO
en-aut-mei=Taro
kn-aut-name=岡元太郎
kn-aut-sei=岡元
kn-aut-mei=太郎
aut-affil-num=3
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Okayama Gakuin University
kn-affil=岡山学院大学

affil-num=2
en-affil=Formerly Department of Earth Sciences, Okayama University
kn-affil=元・岡山大学大学院自然科学研究科

affil-num=3
en-affil=Department of Earth and Planetary Sciences, School of Science, Institute of Science Tokyo
kn-affil=東京科学大学理学院地球惑星科学系

affil-num=4
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
en-keyword=Sedimentary layer model
kn-keyword=Sedimentary layer model
en-keyword=Accretionary prism
kn-keyword=Accretionary prism
en-keyword=Ryukyu arc
kn-keyword=Ryukyu arc
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=31
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2025
dt-pub=20250331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=35
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A new insight into the driving mechanism for plate tectonics?the relationship between tectonic processes and the circumferential tensile forces associated with a rotating planet?
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Mantle convection currents are the currently accepted driving force for plate tectonics that have ripped apart the continents and created oceans. Because of these actions, continental collisions and ocean closures have resulted. Our paper challenges the conventional concept and provides an alternate, mathematically justified drive mechanism. The pull-push motions of such convection currents in the upper mantle are here concluded to be too weak to be the driving mechanism.<br>
　Our proposal for such global scale forces concerns the effect of an offset centre of mass of the Earth that results in rotational wobbling. Kepler’s laws of planetary motion demonstrate the rotational behavior of the Earth to be aligned with the Sun on the outward and inward motions of the elliptical orbit. The unbalanced rotation on a fixed gravitational axis results in circumferential stresses on the outer Earth’s rim that is more than strong enough to pull the continental plates apart. The proposed unbalanced rotational stress force equation is shown to be sufficient to drive the cyclic breakup and reassembly of the continental plates, as well as the generation of new oceanic crust and subduction zones. Mantle convection currents are here demonstrated to have a passive rather than active role in the plate movements.
en-copyright=
kn-copyright=

en-aut-name=MAURERRobert
en-aut-sei=MAURER
en-aut-mei=Robert
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HARKERStuart
en-aut-sei=HARKER
en-aut-mei=Stuart
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SUZUKIShigeyuki
en-aut-sei=SUZUKI
en-aut-mei=Shigeyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=WHEELERAllan
en-aut-sei=WHEELER
en-aut-mei=Allan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Maurer Associates C/o Wellhead Metering Systems

affil-num=2
en-affil=
kn-affil=Morningside Petroleum Geology Consultancy Ltd.

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=4
en-affil=
kn-affil=Professional editor of publications
en-keyword=Differential circumferential tensile force
kn-keyword=Differential circumferential tensile force
en-keyword=Rotating Earth
kn-keyword=Rotating Earth
en-keyword=Offset centre of mass
kn-keyword=Offset centre of mass
en-keyword=radius of eccentricity
kn-keyword=radius of eccentricity
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Microtremor exploration in Tsushima Campus, Okayama University
kn-title=岡山大学津島キャンパスおける微動探査
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　In this report, microtremor array observations were conducted in the Tsushima Campus of Okayama University, and the subsurface velocity structure was estimated from the analysis of the records. The results indicate that a five-layer S-wave velocity structure from the surface to the seismic basement equivalent layer with thicknesses of 8, 24, 80 and 180 m and velocities of 150, 450, 1100, 1700 and 3200 m/s, respectively, is reasonable. This model explains to some extent the observed phase velocity and H/V spectral ratios. It is also consistent with the surface borehole results. Furthermore, the areal characteristics of the H/V spectral ratios were also presented, allowing us to estimate the trend of the ground structure in shallow areas.
en-copyright=
kn-copyright=

en-aut-name=YAMADANobuyuki
en-aut-sei=YAMADA
en-aut-mei=Nobuyuki
kn-aut-name=山田伸之
kn-aut-sei=山田
kn-aut-mei=伸之
aut-affil-num=1
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Faculty of Science and Technology, Kochi University
kn-affil=高知大学理工学部地球環境防災学科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域
en-keyword=Okayama
kn-keyword=Okayama
en-keyword=Microtremor array exploration
kn-keyword=Microtremor array exploration
en-keyword=S-wave velocity
kn-keyword=S-wave velocity
en-keyword=H/V spectral ratio
kn-keyword=H/V spectral ratio
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Petrological characteristics of the stone chamber of Tobiotsuka Kofun, Okayama Prefecture
kn-title=鳶尾塚古墳の石室石材の岩石学的特徴
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Tobiotsuka Kofun, a tumulus built on the Misu Hills in the Kofun period, has a horizontal stone chamber made of huge stone blocks with a width up to 2 meters or more. To specify the source of the stone blocks, we carried out the measurement of magnetic susceptibility, petrographic observation, and chemical analysis of minerals. The stones are amphibole-biotite granite with phenocrystic large grains of K-feldspar. The back-wall stone of the chamber has higher magnetic susceptibility than ceiling and side-wall stones, which probably results from a higher amount of magnetite formed by the alteration of biotite in the back-wall stone. Furthermore, the back-wall stone is different from ceiling stone in that it has lower XMg [Mg/(Mg + Fe) mole ratio], lower Al, Ti, and Na + K contents and higher Si contents of amphibole, higher XMg of biotite, and shows a tendency to have higher Na (albite component) contents at rims of plagioclase crystals and lower Ti contents of zircon. These characteristics of the back-wall stone are similar to those of granite exposed in the Koshinzan area about 2 km northeast of Tobiotsuka Kofun, whereas the ceiling and side-wall stones are similar to granite outcrops in the vicinity of Tobiotsuka Kofun, e.g., in the Midoriyama area. It is concluded that the quarry for the back-wall was located at a different place from that for the ceiling and side-wall stones.
en-copyright=
kn-copyright=

en-aut-name=KANEKOTakahiro
en-aut-sei=KANEKO
en-aut-mei=Takahiro
kn-aut-name=金子峻大
kn-aut-sei=金子
kn-aut-mei=峻大
aut-affil-num=1
ORCID=

en-aut-name=NOZAKAToshio
en-aut-sei=NOZAKA
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=2
ORCID=

en-aut-name=SEIKEAkira
en-aut-sei=SEIKE
en-aut-mei=Akira
kn-aut-name=清家章
kn-aut-sei=清家
kn-aut-mei=章
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院環境生命自然科学学域

affil-num=3
en-affil=Department of Archaeology, Okayama University
kn-affil=岡山大学学術研究院社会文化科学学域
en-keyword=Tobiotsuka Kofun
kn-keyword=Tobiotsuka Kofun
en-keyword=stone chamber
kn-keyword=stone chamber
en-keyword=granite
kn-keyword=granite
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=30
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2024
dt-pub=20240331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=65
end-page=66
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ERRATA: FDM simulation of long-period ground motions around Oita Prefecture, Japan, using a land-ocean unified 3D structure model
kn-title=訂正：地形を考慮した陸海統合3次元地震波速度構造モデルを用いた大分県周辺の長周期地震動シミュレーション
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=OKUNAKATatsuya
en-aut-sei=OKUNAKA
en-aut-mei=Tatsuya
kn-aut-name=奥仲達也
kn-aut-sei=奥仲
kn-aut-mei=達也
aut-affil-num=1
ORCID=

en-aut-name=KOMATSUMasanao
en-aut-sei=KOMATSU
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=2
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=3
ORCID=

en-aut-name=YOSHIMIMasayuki
en-aut-sei=YOSHIMI
en-aut-mei=Masayuki
kn-aut-name=吉見雅行
kn-aut-sei=吉見
kn-aut-mei=雅行
aut-affil-num=4
ORCID=

en-aut-name=NAKAMURATakeshi
en-aut-sei=NAKAMURA
en-aut-mei=Takeshi
kn-aut-name=中村武史
kn-aut-sei=中村
kn-aut-mei=武史
aut-affil-num=5
ORCID=

en-aut-name=OKAMOTOTaro
en-aut-sei=OKAMOTO
en-aut-mei=Taro
kn-aut-name=岡元太郎
kn-aut-sei=岡元
kn-aut-mei=太郎
aut-affil-num=6
ORCID=

affil-num=1
en-affil=Formerly Department of Earth Sciences, Okayama University
kn-affil=元・岡山大学理学部地球科学科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院自然科学学域

affil-num=4
en-affil=Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology
kn-affil=国立研究開発法人産業技術総合研究所 活断層・火山研究部門

affil-num=5
en-affil=Formerly Japan Agency for Marine-Earth Science and Technology
kn-affil=元・国立研究開発法人海洋研究開発機構

affil-num=6
en-affil=Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology
kn-affil=東京工業大学理学院地球惑星科学系
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=49
end-page=63
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Onset time and location of the main rupture of the 2018 Hokkaido Eastern Iburi, Japan, earthquake
kn-title=2018 年北海道胆振東部地震の初期の破壊過程
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The rupture process at the beginning stage of the 2018 Hokkaido Eastern Iburi, Japan, earthquake (MJ 6.7) is investigated by analyzing P-wave records from local strong-motion stations. The records show about 3 s of small amplitude arrival (so-called "initial rupture phase") followed by the onset of the main energy release ("main rupture phase"). In this paper we address the issue: where the seismic energy release corresponding to the main rupture phase started at the primary stage of the main rupture, by locating the main rupture onset position. For this aim we applied the 2D and the 3D search methods to estimate the relative location of the onset of the main rupture with respect to the hypocenter, and the time difference between them. The 2D method assumes a plausible initial fault plane and locates the main rupture onset position on the initial fault plane, while the 3D method does not require such assumed fault planes. In the 2D method we employed each of the nodal planes of the first-motion focal mechanism as the initial rupture plane. The 3D method was able to give a better solution than the 2D one. It suggests that the main rupture initiation point might not be on the same fault plane as the hypocenter is. The solution shows that the main rupture onset point is 5.8 km southward and 2.5 km upward from the hypocenter, with the rupture time of 3.3 s from the origin time. It is consistent with the previous studies on the relationship between the magnitude and the initial rupture duration.
en-copyright=
kn-copyright=

en-aut-name=KOWARIHirofumi
en-aut-sei=KOWARI
en-aut-mei=Hirofumi
kn-aut-name=小割啓史
kn-aut-sei=小割
kn-aut-mei=啓史
aut-affil-num=1
ORCID=

en-aut-name=KOMATSUMasanao
en-aut-sei=KOMATSU
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=2
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院自然科学学域
en-keyword=2018 Hokkaido Eastern Iburi earthquake
kn-keyword=2018 Hokkaido Eastern Iburi earthquake
en-keyword=fault plane
kn-keyword=fault plane
en-keyword=initial rupture
kn-keyword=initial rupture
en-keyword=strong motion
kn-keyword=strong motion
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=29
end-page=48
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Summary of our activities toward development of the ESD interdisciplinary study plans on climate and cultural understanding education with attention to the seasonal cycle and “seasonal feeling” around Japan and Europe
kn-title=気候・文化理解教育の学際的ESD学習プラン開発へ向けた取り組み（日本とヨーロッパの季節サイクルや季節感に注目して）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We have continued the interdisciplinary integration of the knowledge on climate and music and have developed the crosscutting study plans on the climate and cultural understanding education. A part of these results had been summarized in a Japanese book titled “Climate and music (Cultural understanding and ESD spreading from the “Doors of Song”)” (Kato and Kato 2019), building mainly our papers written in Japanese. This article will re-integrate our above study results, mainly for the climate and songs/traditional seasonal events around Germany, Northern Europe and Japan, with special attention to (A) asymmetric seasonal progression from autumn to next spring around Japan, (B) winter climate around Germany in association with the seasonal feeling on the traditional events “Fasnacht” for driving winter away and (C) climate around Northern Europe in association with the seasonal feeling on the summer solstice festival “Juhannus” with comparison to the summer climate around Japan.
en-copyright=
kn-copyright=

en-aut-name=KATOKuranoshin
en-aut-sei=KATO
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=KATOHaruko
en-aut-sei=KATO
en-aut-mei=Haruko
kn-aut-name=加藤晴子
kn-aut-sei=加藤
kn-aut-mei=晴子
aut-affil-num=2
ORCID=

en-aut-name=AKAGIRikako
en-aut-sei=AKAGI
en-aut-mei=Rikako
kn-aut-name=赤木里香子
kn-aut-sei=赤木
kn-aut-mei=里香子
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学学術研究院教育学域

affil-num=2
en-affil=Faculty of Education, Gufu Shotoku Gakuen University (Former Affiliation)
kn-affil=元 岐阜聖徳学園大学教育学部

affil-num=3
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学学術研究院教育学域
en-keyword=climate and music
kn-keyword=climate and music
en-keyword=interdisciplinary climate and cultural understanding education
kn-keyword=interdisciplinary climate and cultural understanding education
en-keyword=seasonal cycle around Japan and Europe
kn-keyword=seasonal cycle around Japan and Europe
en-keyword=seasonal feeling
kn-keyword=seasonal feeling
en-keyword=ESD
kn-keyword=ESD
en-keyword=comparative climatology
kn-keyword=comparative climatology
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=27
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Geology of the Paleogene to Neogene successions and gentle upwarping of the Kibi Plateau Surface, surrounding area of Kibichuou Town, Okayama Prefecture, Southwest Japan
kn-title=岡山県吉備中央町賀陽周辺の古第三系〜新第三系の地質と吉備高原面のゆるやかな曲隆
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Paleogene to Neogene successions which are composed of the Paleogene Kayo Formation, the late Oligocene to earliest Miocene Yagane Formation and the middle Miocene Ukan Formation are sporadically distributed in the Kibi Plateau region, surrounding area of Kibichuou Town, Okayama Prefecture, Southwest Japan. The gravel of the Kayo Formation occupied paleo-valley of Pre-Paleogene basement. The Yagane and Ukan formations unconformably overlay Pre-Paleogene rocks and occupy the gentle valley on the Kibi Surface as valley fill deposits.<br>
The fluvial of the Kayo Formation is mainly composed of conglomerate with minor amount of sandstone and mudstone. The fluvial Yagane Formation is mainly composed of conglomerate and associated with sandstone, mudstone and coal beds. The marine Ukan Formation is subdivided into 3 members, the Yamagata Muddy sandstone Member (YMM), the Shimoyokomi Sandstone Member (SSM) and the Tsuneyama Mudstone Member (TMM) in ascending order. The YMM is characterized by the bio-disturbed very poorly sorted muddy sandstone with frequent burrows, which indicate tidal flat deposits. The SSM is mainly composed of parallel bedded well-sorted sandstone with occasional burrows, which suggest near shore deposits. The TMM is composed of homogeneous clay rich mudstone, which implies off shore deposits.<br>
The boundary between the SSM and TMM (the contact of the sandstone and mudstone) is distinctive and correlative throughout the study area. The boundary is considered to be formed under similar water depth. The variations of the boundary height indicate a later ground movement. From the north to the south in about 25km distance, the height of the boundary changes 260m (in Ukan), 300m (in Takeshou), 360m (in Kibikogentoshi) and 260m (in Nichiouji). It indicates that a very gentle upwarping of the Kibi Plateau Surface was formed after the deposition of the Miocene.
en-copyright=
kn-copyright=

en-aut-name=TANAKAHajime
en-aut-sei=TANAKA
en-aut-mei=Hajime
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=1
ORCID=

en-aut-name=SUZUKIShigeyuki
en-aut-sei=SUZUKI
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Seibu Engineering Consultants Co., Ltd.
kn-affil=西部技術コンサルタント株式会社

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学理学部地球科学科
en-keyword=Kibi Plateau Surface
kn-keyword=Kibi Plateau Surface
en-keyword=Upwarping
kn-keyword=Upwarping
en-keyword=Miocene
kn-keyword=Miocene
en-keyword=Ukan Formation
kn-keyword=Ukan Formation
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=29
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2023
dt-pub=20230331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=27
end-page=103
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=FDM simulation of long-period ground motions around Oita Prefecture, Japan, using a land-ocean unified 3D structure model
kn-title=地形を考慮した陸海統合3次元地震波速度構造モデルを用いた大分県周辺の長周期地震動シミュレーション
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Oita prefecture is located in northeastern part of Kyushu Island which is characterized by active subduction of the Philippine Sea plate (PHS) beneath the Eurasian plate and several active volcanoes along with the volcanic front. Oita area has frequently been damaged by large earthquakes and tsunamis since ancient times. From the point of view of disaster prevention, it is important to investigate the feasibility of strong ground motion prediction using realistic structural models. In this paper we use a land-ocean unified 3D (three-dimensional) structure model around Oita prefecture, which includes land and sea-floor topography and a seawater layer as well as subsurface structures of the arc side and the PHS slab to conduct the FDM (finite-difference method) simulations of strong ground motion in land and ocean areas for the 2015 Southern Oita, Japan, earthquake (MJMA5.7) whose hypocenter is located in the PHS slab. The simulated long-period (2?20 s) ground motions reproducing observed records demonstrate substantial contributions of thick low-velocity sediment layers in and around Beppu Bay and Oita basin to development of the motions. We also examine the topographic effects on the seismic motion by analyzing the simulation results to show the strong enhancement of the later phases.
en-copyright=
kn-copyright=

en-aut-name=OkunakaTatsuya 
en-aut-sei=Okunaka
en-aut-mei=Tatsuya 
kn-aut-name=奥仲達也
kn-aut-sei=奥仲
kn-aut-mei=達也
aut-affil-num=1
ORCID=

en-aut-name=KomatsuMasanao
en-aut-sei=Komatsu
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=2
ORCID=

en-aut-name=TakenakaHiroshi
en-aut-sei=Takenaka
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=3
ORCID=

en-aut-name=YoshimiMasayuki
en-aut-sei=Yoshimi
en-aut-mei=Masayuki
kn-aut-name=吉見雅行
kn-aut-sei=吉見
kn-aut-mei=雅行
aut-affil-num=4
ORCID=

en-aut-name=NakamuraTakeshi
en-aut-sei=Nakamura
en-aut-mei=Takeshi
kn-aut-name=中村武史
kn-aut-sei=中村
kn-aut-mei=武史
aut-affil-num=5
ORCID=

en-aut-name=OkamotoTaro
en-aut-sei=Okamoto
en-aut-mei=Taro
kn-aut-name=岡元太郎
kn-aut-sei=岡元
kn-aut-mei=太郎
aut-affil-num=6
ORCID=

affil-num=1
en-affil=Formerly Department of Earth Sciences, Okayama University
kn-affil=元・岡山大学理学部地球科学科

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学学術研究院自然科学学域

affil-num=4
en-affil=Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology
kn-affil=国立研究開発法人産業技術総合研究所 活断層・火山研究部門

affil-num=5
en-affil=Formerly Japan Agency for Marine-Earth Science and Technology
kn-affil=元・国立研究開発法人海洋研究開発機構

affil-num=6
en-affil=Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology
kn-affil=東京工業大学理学院地球惑星科学系
en-keyword=strong motion
kn-keyword=strong motion
en-keyword=Oita
kn-keyword=Oita
en-keyword=the 2015 Southern Oita earthquake
kn-keyword=the 2015 Southern Oita earthquake
en-keyword=long-period ground motion
kn-keyword=long-period ground motion
en-keyword=simulation
kn-keyword=simulation
en-keyword=finite-difference method
kn-keyword=finite-difference method
en-keyword=topography
kn-keyword=topography
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=25
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Depositional history of the Paleogene to Neogene valley fill deposits and topographic change in the Kibi Plateau region, Okayama City, Southwest Japan
kn-title=岡山市北部吉備高原地域に分布する古第三系・新第三系の分布・堆積相と古地理変遷
en-subtitle=
kn-subtitle=
en-abstract=The deposition of the Paleogene to Neogene sediments in the Kibi Plateau region played an important role to form the Kibi Plateau Surface. Study area is situated in the southern part of the Kibi Plateau. Field work has been continued more than 30 years and traced distribution of the deposits which make clear the paleo-topography. Sedimentary facies of deposits were observed to understand depositional environments. Without Fission-Track zircon dating from tuff samples, we could not divide and define the formations. The Paleogene Kibi Group and the latest Paleogene to Neogene Bihoku Group are distributed in the study area. The Kibi Group is unusual deposits which filled steep valley in mountain area and comprise the Tomiyoshi Formation (36 to 34 Ma) and the Tsudaka Formation (29 to 27 Ma). The formations are fluvial deposits and have similar litho-facies. The distribution of the formations indicate drainage system when deposited. Conglomerates with imbricate structure are the major component of the formations and sandstones and mudstones (sometimes with plant fragments and rootlets) are associated. The Bihoku Group is composed of the fluvial Yagane Formation (24.5 to 25.5 Ma) and the shallow marine Nichiouji Formation (15 to 16 Ma). The formations have the same depositional basin of low relief valley. The Yagane Formation is composed of conglomerate, sandstone, mudstone and coaly mudstone. The Nichiouji Formation is composed of well sorted sandstone with marine fossils.
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=TanakaHajime
en-aut-sei=Tanaka
en-aut-mei=Hajime
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Seibu Engineering Consultants Co., Ltd.
kn-affil=西部技術コンサルタント株式会社

affil-num=2
en-affil=Department of Earth Sciences, Okayama University
kn-affil=岡山大学 特命教授・名誉教授
en-keyword=Kibi Plateau Surface
kn-keyword=Kibi Plateau Surface
en-keyword=Paleogene
kn-keyword=Paleogene
en-keyword=Kibi Group
kn-keyword=Kibi Group
en-keyword=Miocene
kn-keyword=Miocene
en-keyword=Bihoku Group
kn-keyword=Bihoku Group
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=28
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2022
dt-pub=20220331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Estimation of displacement waveforms by baseline correction of near-fault acceleration records of the 2016 Kumamoto earthquake with median filter
kn-title=メジアンフィルターを用いた2016年熊本地震の断層近傍における加速度記録の基線補正と変位波形の推定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The 2016 Kumamoto earthquake sequence occurred on April 14 (MJMA 6.5) and April 16 (MJMA 7.3). Seismic intensity of 7 on the Japan Meteorological Agency (JMA) scale was observed in Mashiki Town, Kumamoto Prefecture for the both events and in Nishihara Village, Kumamoto Prefecture for the April-16 event. We estimate the displacement waveforms from these acceleration records. Since the acceleration seismograms include the long-period noise due to tilting of the ground and instrumental effects, the baseline corrections are required to derive the accurate velocity and displacement waveforms. We apply a median filter to the velocity waveforms to identify the linear trends on them due to the steplike noise on the acceleration records, and determine the time at which baseline shifts take place and the step value of each shift for the baseline correction through trial and error. Our baseline correction can successfully reconstruct the velocity and displacement waveforms from the acceleration records. The displacement waveforms show the static components consistent with the geodetic data.
en-copyright=
kn-copyright=

en-aut-name=WatanabeTomotsugu
en-aut-sei=Watanabe
en-aut-mei=Tomotsugu
kn-aut-name=渡邉禎貢
kn-aut-sei=渡邉
kn-aut-mei=禎貢
aut-affil-num=1
ORCID=

en-aut-name=KomatsuMasanao
en-aut-sei=Komatsu
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=2
ORCID=

en-aut-name=TakenakaHiroshi
en-aut-sei=Takenaka
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=2016 Kumamoto earthquake
kn-keyword=2016 Kumamoto earthquake
en-keyword=baseline correction
kn-keyword=baseline correction
en-keyword=median filter
kn-keyword=median filter
en-keyword=displacement
kn-keyword=displacement
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=29
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Synthetic nearfield seismograms at a subsurface position in a horizontally layered half-space
kn-title=水平成層構造における地中の近地理論地震記象
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We extend the computational code of Takenaka and Sasatani (2000) for synthetic nearfield seismograms for horizontally layered elastic media, based on the reflection/transmission matrices and the discrete wavenumber summation method, to calculate seismic motion and its spatial derivatives at a subsurface position in the attenuative media. In this paper we describe the theory of this extension and show some numerical examples to verify the extended code.
en-copyright=
kn-copyright=

en-aut-name=TakenakaHiroshi
en-aut-sei=Takenaka
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=1
ORCID=

en-aut-name=WatanabeTomotsugu
en-aut-sei=Watanabe
en-aut-mei=Tomotsugu
kn-aut-name=渡邉禎貢
kn-aut-sei=渡邉
kn-aut-mei=禎貢
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=synthetic seismogram
kn-keyword=synthetic seismogram
en-keyword=reflectivity method
kn-keyword=reflectivity method
en-keyword=layered half-space
kn-keyword=layered half-space
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=27
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The Kibi Plateau Surface ― relationship with the Paleogene and Miocene deposits in middle western part of Okayama Prefecture, Japan ―
kn-title=新・古第三系の分布に着目した岡山県中西部における 吉備高原地域の地形特性
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Kibi Plateau Surface is associated with the Paleogene gravel river bed deposits of the Kibi Group and the Miocene marine deposits of the Katsuta Group and the Bihoku Group. These Paleogene and Miocene units are valley fill deposits. The Kibi Group is composed of formations which is deposited by more than 7 different depositional events during earliest to latest Paleogene Period. Repeated cycles of “erosion - formation of new valley system - deposition and fill up the valley” created the low relief topographic surface. The deposition of
the Miocene deposits might complete the Kibi Plateau Surface. Detailed field works have done in middle western part of Okayama Prefecture. The Kibi Plateau Surface in study area is gently dipping from NW (about 600m high) to SE (about 100m high). The distributions of the Paleogene and Miocene deposits fit the surface.
At the southern margin of the Kibi Plateau, the surface is a little inclined (from 400m high to 100m high) where the bottom of paleo-valleys of the Paleogene deposits are subparallel to the surface. It suggests that the gentle tilting of the Kibi Plateau is caused by an up-warping.
en-copyright=
kn-copyright=

en-aut-name=TanakaHajime 
en-aut-sei=Tanaka
en-aut-mei=Hajime 
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Fukken Co., Ltd., Okayama branch office
kn-affil=復建調査設計株式会社岡山支社

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Kibi Plateau Surface
kn-keyword=Kibi Plateau Surface
en-keyword=Paleogene
kn-keyword=Paleogene
en-keyword=Neogene
kn-keyword=Neogene
en-keyword=Miocene
kn-keyword=Miocene
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=For development of an ESD-based teacher training program on climate change : overlooking geo-phenomena on various timescales
kn-title=気候変動に関するESD教師教育開発へ向けて：様々な時間スケールの地学現象の俯瞰
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Since the recent climate change is an important topic in the context of SDGs (Sustainable Development Goals) and ESD (Education for Sustainable Development), teacher training course should produce educators with sufficient geo-literacy. In order to meet this requirement, the authors have designed a study plan that facilitates students’ better understanding of current climate change issues, which will be offered in a lecture at university by two speakers who have different specialties, paleoenvironmental science and meteorology. Summary of the lecture is as follows. At first, from the branch of paleoenvironmental science, a major cooling
event at the Eocene/Oligocene boundary and the glacial-interglacial cycles in the Quaternary will be explained. We will then instruct the participants to compare these climatic events with recent global warming, in order to remind them of the extraordinary higher speed of the recent climate change than climatic events in the geological past. Followed by these global topics, climatological features in East Asia including Japan (e.g. regional/seasonal difference in climate and year-to-year variations) will be demonstrated in order to relate local issues to global ones. By these efforts, the lecture aims to cultivate students’ ability to grasp geophenomena from various aspects and understand the true nature of problems, which may contribute producing educators who can execute ESD programs.
en-copyright=
kn-copyright=

en-aut-name=KatoYuji
en-aut-sei=Kato
en-aut-mei=Yuji
kn-aut-name=加藤悠爾
kn-aut-sei=加藤
kn-aut-mei=悠爾
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Center for Advanced Marine Core Research, Kochi University
kn-affil=高知大学 海洋コア総合研究センター

affil-num=2
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科
en-keyword=time scales
kn-keyword=time scales
en-keyword=geologic events
kn-keyword=geologic events
en-keyword=paleoenvironmental science
kn-keyword=paleoenvironmental science
en-keyword=meteorology and climatology
kn-keyword=meteorology and climatology
en-keyword=global warming
kn-keyword=global warming
en-keyword=ESD
kn-keyword=ESD
en-keyword=SDGs
kn-keyword=SDGs
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=27
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2021
dt-pub=20210331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=37
end-page=49
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Synoptic climatological analyses of daily precipitation features and atmospheric fields in warm season relating to the precipitation difference between Kochi and Okayama characterizing the Seto Inland Sea Climate in Japan
kn-title=高知・岡山間の降水量差形成に関わる暖候期の日々の降水や大気場の総観気候学的解析（瀬戸内式気候に関連して）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= In order to re-examine the formation process of the climatological precipitation difference between Kochi (Pacific side of Shikoku District) and Okayama (Seto Inland Sea side) characterizing the Seto Island Sea Climate in warm season, synoptic climatological analyses of the daily precipitation features and atmospheric fields were performed for the warm season (April to September) of 1985 - 2015, based on the daily and hourly precipitation data and weather maps by the Japan Meteorological Agency (JMA), and the NCEP/NCAR re-analysis data. The large climatological difference of precipitation at Kochi from that at Okayama throughout the warm season was greatly contributed to by the days with the precipitation difference between Kochi and Okayama (ΔPR) with greater equal to 30 mm/day. In addition, such large daily ΔPR was mainly due to the intense rainfall at Kochi with greater equal to 10mm/h throughout the warm season, except for a part of the cases in April when the “not so intense rain” with less than 10mm/h at Kochi contributed to the large ΔPR. However, it is noted that the features of the synoptic-scale atmospheric fields and possible roles of the mountain ranges in Shikoku District causing the large ΔPR were rather different among August (midsummer), September (Autumn rainfall season) and April (Spring) .
en-copyright=
kn-copyright=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=SUGIMURAYuki
en-aut-sei=SUGIMURA
en-aut-mei=Yuki
kn-aut-name=杉村裕貴
kn-aut-sei=杉村
kn-aut-mei=裕貴
aut-affil-num=2
ORCID=

en-aut-name=MATSUMOTOKengo
en-aut-sei=MATSUMOTO
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=2
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Daily precipitation climatology
kn-keyword=Daily precipitation climatology
en-keyword=Climate around Japan
kn-keyword=Climate around Japan
en-keyword=Seto Inland Sea Climate in Japan
kn-keyword=Seto Inland Sea Climate in Japan
en-keyword=Synoptic climatology
kn-keyword=Synoptic climatology
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=36
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Interdisciplinary ESD lesson study for the university students with attention to the difference of climate and seasonal feeling in “summer” among Germany, northern Europe and Japan
kn-title=ドイツ・北欧と日本の「夏」の気候や季節感の違いに注目して音楽と連携した大学での学際的ESD授業開発
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Climatological features and seasonal feeling in the season called by the same word such as “summer”would be rather different from region to region. Comparison of these features among the different regions, including the regions which are not so familiar to the students, would help to promote their fundamental ESD literacy, especially relating to the “Understanding of heterogeneous others”. Based on that concept, this paper will report an interdisciplinary lesson study for the university students on a theme how different the summertime climate and seasonal feeling among Germany, northern Europe and Japan are. In this study, the lesson practice was made in 2015 and 2018. In both classes, after the lecture on the summertime climate and seasonal feeling in these regions, the students created substitute songs with use of the melody of “Alles neu macht der Mai” (“The May makes all things new”, the same melody as a Japanese school song “Butterfly”) for the comparison between Germany and Japan. As for that between northern Europe, the melody of a Japanese school song “Furu-Sato” (“My country home”) was used for the creation of the substitute songs. It is noted that, not only the seasonal mean temperature or solar radiation condition, but also the features in association with the large day-to-day temperature variation was strongly reflected in the students’ works.
en-copyright=
kn-copyright=

en-aut-name=KATOKuranoshin
en-aut-sei=KATO
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=KATOHaruko
en-aut-sei=KATO
en-aut-mei=Haruko
kn-aut-name=加藤晴子
kn-aut-sei=加藤
kn-aut-mei=晴子
aut-affil-num=2
ORCID=

en-aut-name=OTANIKazuo
en-aut-sei=OTANI
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=3
ORCID=

en-aut-name=MATSUMOTOKengo
en-aut-sei=MATSUMOTO
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=2
en-affil=Faculty of Education, Gufu Shotoku Gakuen University
kn-affil=岐阜聖徳学園大学教育学部

affil-num=3
en-affil=TV Setouchi Broadcasting Co., LTD.
kn-affil=テレビせとうち(株)

affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Interdisciplinary collaboration between climate and cultural understanding education
kn-keyword=Interdisciplinary collaboration between climate and cultural understanding education
en-keyword=ESD
kn-keyword=ESD
en-keyword=Comparative climatology
kn-keyword=Comparative climatology
en-keyword=Regional difference of summer climate
kn-keyword=Regional difference of summer climate
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Schistose fault related rocks from the Sangun Metamorphic Rocks, Kawakita area, Misaki Town, Okayama Prefecture, SW Japan
kn-title=美咲町川北地域に分布する三郡変成岩から見出された片岩化した断層岩
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The crystalline schist which is representatively exposed in the Innerside of Southwest Japan is called the Sangun Metamorphic Rocks (SMR). In Kawakita area, Misaki Town, Okayama Prefecture, schistose fault rocks which is newly described in below are intercalated in the SMR. The rocks are composed of lenticular fragments of pelitic, basic siliceous rocks and quartz vein with siliceous to pelitic matrix. The fine-grained muscovites which define schistosity penetrate the rocks. Major direction of layer which though to reflect slip plane is subparallel to the schistosity. The long axis of some fragments are slightly oblique to the schistosity. The combination of the two sets of planes is considered to be a composite planar fabric. These occurrences suggest that the rocks are fault rock before the Sangun Metamorphism and named as schistose fault rocks. Lenses of cataclasite and myronite are accompanied. Planar thin (about 10cm in thickness) brittle fault rock is also associated. These shear deformed rocks form units of layer (shear zone) of 10 to 100m in thickness, and are concordantly intercalated in the surrounded normal schists. Active periods of the shear zones had several times from before and after the event of the Sangun Metamorphism.
en-copyright=
kn-copyright=

en-aut-name=MATSUSHITAMirei
en-aut-sei=MATSUSHITA
en-aut-mei=Mirei
kn-aut-name=松下実礼
kn-aut-sei=松下
kn-aut-mei=実礼
aut-affil-num=1
ORCID=

en-aut-name=SUZUKIShigeyuki
en-aut-sei=SUZUKI
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Sangun Metamorphic Rocks
kn-keyword=Sangun Metamorphic Rocks
en-keyword=regional metamorphism
kn-keyword=regional metamorphism
en-keyword=shear deformation
kn-keyword=shear deformation
en-keyword=schistose fault rock
kn-keyword=schistose fault rock
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Computation of non-linear site response by the time-domain finite-difference method
kn-title=時間領域差分法による表層地盤の非線形応答の計算
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= We have developed a time-domain staggered-grid finite-difference code for modeling non-linear response of a one-dimensionally inhomogeneous subsurface structure to a SH plane-wave incidence. It employs the velocity-stress formulation of elastodynamic equation for the linear part, and adopts a elastoplastic rheology model for the non-linear relation between the stress and strain. In this paper, we apply this code to four constitutive models from linear-elastic to nonlinear: (1) linear elastic model, (2) linear viscoelastic model, (3) elastoplastic model, and (4) viscoelastoplastic model, which simulate shallow sand and clay structures and are vibrated by a vertically incident SH plane-wave of Ricker wavelet, to compare the linear and the non-linear soil behaviors including low strains damping (viscoelastic effect) and/or hysteretic attenuation (non-linear effect). We also apply it to a local strong-motion record of the 2000 Western-Tottori earthquake (MW6.8). We then simulate characteristics of non-linear site response such as reduction of the spectral amplitude in the high frequency band and shift of the peak frequencies to lower frequencies.
en-copyright=
kn-copyright=

en-aut-name=TORIGOEYusuke
en-aut-sei=TORIGOE
en-aut-mei=Yusuke
kn-aut-name=鳥越友輔
kn-aut-sei=鳥越
kn-aut-mei=友輔
aut-affil-num=1
ORCID=

en-aut-name=KOMATSUMasanao
en-aut-sei=KOMATSU
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=2
ORCID=

en-aut-name=TAKENAKAHiroshi
en-aut-sei=TAKENAKA
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Department of Earth Sciences, Faculty of Science, Okayama University
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=finite-difference method
kn-keyword=finite-difference method
en-keyword=non-linear site response
kn-keyword=non-linear site response
en-keyword=strong motion
kn-keyword=strong motion
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=26
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20191227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款） 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=48
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=U-Pb single grain zircon ages for Sanbagawa Metamorphic Rocks in central Shikoku (Japan): the Sanbagawa Belt re-united
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The high-P/low-T Sanbagawa Metamorphic Belt that traverses SW Japan, has been subdivided into two belts thought to have been metamorphosed at ca. 120 Ma and at ca. 65 Ma (‘Sanbagawa Metamorphic Rocks’ and ‘Shimanto Metamorphic Rocks’). The subdivision was based on the assumption that metamorphism occurred at ca. 116 Ma, largely based on an early Rb-Sr isotope study and zircon data obtained for the eclogite unit of the Sanbagawa Belt, whereas in some parts of the belt detrital zircons of late Cretaceous age (90-80 Ma) were discovered. Analysis of detrital zircons sampled from two sites within the area considered to expose the older ‘Sanbagawa Metamorphic Rocks’, including the area investigated by the Rb-Sr study, reveals the presence of zircons younger than 95 Ma in all samples and some grains as young as 80 ± 4 Ma. It is therefore concluded that the Sanbagawa Belt is one single tectonic entity that formed in the Late Cretaceous though it contains older components, including fossiliferous clasts, older basic meta-volcanics and eclogite units that may record earlier metamorphic events.
en-copyright=
kn-copyright=

en-aut-name=KnittelUlrich
en-aut-sei=Knittel
en-aut-mei=Ulrich
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=WaliaMonika
en-aut-sei=Walia
en-aut-mei=Monika
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=LeeYuan-Hsi
en-aut-sei=Lee
en-aut-mei=Yuan-Hsi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Clay and Interface Mineralogy, RWTH Aachen University
kn-affil=

affil-num=2
en-affil=Department of Geosciences, National Taiwan University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Department of Earth and Environmental Sciences, National Chung-Cheng University
kn-affil=
en-keyword=U-Pb zircon dating
kn-keyword=U-Pb zircon dating
en-keyword=Sanbagawa Metamorphic Belt
kn-keyword=Sanbagawa Metamorphic Belt
en-keyword=Late Cretaceous
kn-keyword=Late Cretaceous
en-keyword=Asemi River
kn-keyword=Asemi River
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=31
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A new method of terrace analysis to determine precise altitudes of former shoreline
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The study area is situated in Japan Sea side margin of the Shakotan Peninsula, Hokkaido, Japan, where MIS5e Terrace is preserved along the cost. Numbers of tight drilling have done to establish new method for terrace analysis. Buried wave cut terrace and sea cliff (when the MIS5e Terrace was formed) are reconstructed by distribution of the terrace deposits and these bottom of unconformity planes. The precise site and altitude of former shoreline was also obtained. Altitudes of the former shoreline from the 7 sections are almost the same 22 to 27m in height. Previous data of the height of shoreline are obtained from the topographic MIS5e Terrace surface. The altitudes have variation from 30m to 60m. It suggests that the traditional method for the MIS5e terrace analysis had some errors in the study area.
en-copyright=
kn-copyright=

en-aut-name=AmanoHideki
en-aut-sei=Amano
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=SatoMasaru
en-aut-sei=Sato
en-aut-mei=Masaru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YanagidaMakoto
en-aut-sei=Yanagida
en-aut-mei=Makoto
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Hanshin Consultants Co., Ltd.,
kn-affil=

affil-num=4
en-affil=Hanshin Consultants Co., Ltd.,
kn-affil=
en-keyword=MIS5e
kn-keyword=MIS5e
en-keyword=marine terrace
kn-keyword=marine terrace
en-keyword=terrace deposits
kn-keyword=terrace deposits
en-keyword=tight drilling
kn-keyword=tight drilling
en-keyword=shoreline
kn-keyword=shoreline
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=30
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Development of an interdisciplinary study plan on the seasonal transition from autumn to winter around the Japan Islands (Through the lesson study at junior high school with attention to the shallow convective rainfall “Shi-gu-re” in the cold air outbreak situations in early winter)
kn-title=日本の秋から冬への季節の変化を捉える学際的指導法の開発（初冬の時雨に注目した附属中学校での実践）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= An interdisciplinary study plan on the seasonal transition from autumn to winter around the Japan Islands and the “seasonal feeling” associated with the shallow convective rainfall “Shi-gu-re” in that stage expressed in the Japanese classic poems called “Wa-ka” was developed, through a lesson study at junior high school. In that study plan, special attention was paid to the seasonal evolution of the larger-scale systems from autumn to winter, such as the Siberian air mass and the Siberian high, and the relation to the cold air intrusion into the Japan Sea and the Japan Islands. According to the analysis of the lesson practice results, students seem to understand that the winter-type weather pattern becomes dominant around November, together with the features of the intermittent rainfall in the winter-type pressure pattern called “Shi-gu-re” expressed in the “Wa-ka”. However, necessity of further improvement of the study plan was pointed out, so that the students can understand more exactly the role of the seasonal development of the Siberian high and Siberian air mass in the climate around the Japan Islands.
en-copyright=
kn-copyright=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=NishikawaSari
en-aut-sei=Nishikawa
en-aut-mei=Sari
kn-aut-name=西川紗里
kn-aut-sei=西川
kn-aut-mei=紗里
aut-affil-num=2
ORCID=

en-aut-name=NakakuraToshimi
en-aut-sei=Nakakura
en-aut-mei=Toshimi
kn-aut-name=中倉智美
kn-aut-sei=中倉
kn-aut-mei=智美
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=2
en-affil=
kn-affil=

affil-num=3
en-affil=Attached Junior High School of Okayama University
kn-affil=岡山大学教育学部附属中学校
en-keyword=Interdisciplinary collaboration between climate and cultural understanding education
kn-keyword=Interdisciplinary collaboration between climate and cultural understanding education
en-keyword=Climate environment around Japan
kn-keyword=Climate environment around Japan
en-keyword=Transition from autumn to winter around Japan
kn-keyword=Transition from autumn to winter around Japan
en-keyword=“Seasonal feeling” in early winter expressed in the Japanese classic literature
kn-keyword=“Seasonal feeling” in early winter expressed in the Japanese classic literature
en-keyword=ESD
kn-keyword=ESD
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Synoptic climatological analyses on the large day-to-day variation of air temperature around Germany in winter (Relating to the “seasonal feeling” in “Fasnacht”, the festival for driving the winter away)
kn-title=ドイツ付近の冬における日々の大きな気温変動に関する総観気候学的解析（冬の追い出しの行事「ファスナハト」における季節感に関連して）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Synoptic climatological analyses associated with the large day-to-day variation of air temperature around Germany in winter were performed based mainly on the NCEP/NCAR reanalysis data for 2000/2001 to 2010/2011 winters, with an interest in the relationship to the “seasonal feeling” in “Fasnacht”, the festival for driving the winter away. The intermittent appearance of the extremely cold days with rather large day-to-day variation in winter as pointed out by Kato et al. (2017) for around Germany was seen also to the north and to the east of Germany. According to a case study for the 2000/2001 winter, such large daily mean temperature fluctuation was closely related to the intraseasonal variation of the Icelandic low with about one month period, i.e., while the temperature around Germany was relatively higher at the eastward shift phase of the Icelandic low due to the strong warm air advection by the SW-ly wind, the temperature was extremely low there when the Icelandic low was weakened and retreated westward.
en-copyright=
kn-copyright=

en-aut-name=HamakiTatsuya
en-aut-sei=Hamaki
en-aut-mei=Tatsuya
kn-aut-name=濱木達也
kn-aut-sei=濱木
kn-aut-mei=達也
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進 
kn-aut-sei=加藤
kn-aut-mei=内藏進 
aut-affil-num=2
ORCID=

en-aut-name=OtaniKazuo
en-aut-sei=Otani
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=3
ORCID=

en-aut-name=KatoHaruko
en-aut-sei=Kato
en-aut-mei=Haruko
kn-aut-name=加藤晴子
kn-aut-sei=加藤
kn-aut-mei=晴子
aut-affil-num=4
ORCID=

en-aut-name=MatsumotoKengo
en-aut-sei=Matsumoto
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=2
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科

affil-num=3
en-affil=TV Setouchi Broadcasting Co., LTD.
kn-affil=テレビせとうち(株)

affil-num=4
en-affil=Faculty of Education, Gifu Shotoku Gakuen University
kn-affil=岐阜聖徳学園大学教育学部

affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Comparative climatology
kn-keyword=Comparative climatology
en-keyword=Climate around Europe
kn-keyword=Climate around Europe
en-keyword=Synoptic climatology on daily temperature variation in winter around Germany
kn-keyword=Synoptic climatology on daily temperature variation in winter around Germany
en-keyword=seasonal cycle and “seasonal feeling”
kn-keyword=seasonal cycle and “seasonal feeling”
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=5
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Non-calcareous beachrock found in Akagurisaki, Ohi Town, Fukui Prefecture
kn-title=福井県おおい町赤礁崎で見出された非石灰質ビーチロック
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Beachrock which was formed about 0.5 meter higher than high tide is found in Akagurisaki, Ohi Town, Fukui Prefecture. The outcrops always get wet by spring water. The sediments are composed of well sorted rounded gravels and sands but calcareous shell is not found at all. Intergranular space is occupied by white amorphous cement. Magnesium and silicon rich composition of the cement is obtained by EPMA analysis. There is a conjecture that the magnesium rich cement was precipitated in spite of solution of calcareous shell under saturated state by spring water, because calcium has a higher tendency to ionize than magnesium.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=AzumaYoichi
en-aut-sei=Azuma
en-aut-mei=Yoichi
kn-aut-name=東洋一
kn-aut-sei=東
kn-aut-mei=洋一
aut-affil-num=2
ORCID=

en-aut-name=DeyamaYasuyo
en-aut-sei=Deyama
en-aut-mei=Yasuyo
kn-aut-name=出山康代
kn-aut-sei=出山
kn-aut-mei=康代
aut-affil-num=3
ORCID=

en-aut-name=YukawaHirokazu
en-aut-sei=Yukawa
en-aut-mei=Hirokazu
kn-aut-name=湯川弘一
kn-aut-sei=湯川
kn-aut-mei=弘一
aut-affil-num=4
ORCID=

en-aut-name=UsuiMayumi
en-aut-sei=Usui
en-aut-mei=Mayumi
kn-aut-name=臼井まゆみ
kn-aut-sei=臼井
kn-aut-mei=まゆみ
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=平寺町松岡兼定島 4-1-1 **
kn-affil=福井県立大学恐竜学研究所

affil-num=3
en-affil=平寺町松岡兼定島 4-1-1 **
kn-affil=福井県立大学恐竜学研究所

affil-num=4
en-affil=Fukui Prefectural Dinosaur Museum
kn-affil=福井県立恐竜博物館

affil-num=5
en-affil=Fujigakuin-Okayama
kn-affil=富士学院
en-keyword=Beachrock
kn-keyword=Beachrock
en-keyword=Akagurisaki
kn-keyword=Akagurisaki
en-keyword=non-calcareous cement
kn-keyword=non-calcareous cement
en-keyword=ionization tendency
kn-keyword=ionization tendency
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=25
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2018
dt-pub=20181227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=5
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Interdisciplinary class for high school students on the climate environment around Japan and "seasonal feeling" expressed in the school songs with attention to the asymmetric seasonal march from autumn to the next spring
kn-title=日本の気候環境と愛唱歌などにみる季節感に関する高校での学際的授業の開発（冬を挟む日本の季節進行の非対称性に注目して）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= This study is a part of the activity to develop an interdisciplinary lesson plan for high school students on the climate environment around Japan and the "seasonal feeling". This time, we focused our attention to the asymmetric seasonal march from autumn to the next spring as proposed by Kato et al. (2013). Comparison of the climate between early winter and early spring was made in the class not only on that around the Japan but also on the relation to the larger-scale systems such as the Siberian air mass, including the brief data analysis. The students also compared the detailed "seasonal feeling" between the two seasons expressed in the school songs and the Japanese classic poems called "Wa-Ka". This paper reports the contents and results of this joint activity at the two high schools.
en-copyright=
kn-copyright=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=KatoHaruko
en-aut-sei=Kato
en-aut-mei=Haruko
kn-aut-name=加藤晴子
kn-aut-sei=加藤
kn-aut-mei=晴子
aut-affil-num=2
ORCID=

en-aut-name=MiyakeShoji
en-aut-sei=Miyake
en-aut-mei=Shoji
kn-aut-name=三宅昭二
kn-aut-sei=三宅
kn-aut-mei=昭二
aut-affil-num=3
ORCID=

en-aut-name=MoriTaizo
en-aut-sei=Mori
en-aut-mei=Taizo
kn-aut-name=森泰三
kn-aut-sei=森
kn-aut-mei=泰三
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科（理科）

affil-num=2
en-affil=Faculty of Education, Gufu Shotoku Gakuen University
kn-affil=岐阜聖徳学園大学教育学部（音楽）

affil-num=3
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学大学院教育学研究科（理科）

affil-num=4
en-affil=Okayama-Ichinomiya High School
kn-affil=岡山県一宮高等学校（地理）
en-keyword= Interdisciplinary activity on climate and cultural understanding education
kn-keyword= Interdisciplinary activity on climate and cultural understanding education
en-keyword= Climate environment around Japan
kn-keyword= Climate environment around Japan
en-keyword=Seasonal cycle and "seasonal feeling"
kn-keyword=Seasonal cycle and "seasonal feeling"
en-keyword=Asymmetric seasonal march from autumn to the next spring
kn-keyword=Asymmetric seasonal march from autumn to the next spring
en-keyword=ESD
kn-keyword=ESD
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Rounded pebble of metamorphosed iron-formations from conglomerate of the Miocene deposits in Yatakayama, Kibi Plateau, Okayama Prefecture
kn-title=岡山県吉備高原弥高山地域に分布する中新統礫岩から変成鉄鉱石礫の発見
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The Kibi Plateau was a part of the Eurasian Continent and separated by the event of opening of Japan Sea. The rounded pebble which is considered to be continental origin was discovered. The pebble is siliceous and attracts magnets. Prepared thin-sections were observed under microscope. Selected minerals were analyzed by EPMA. The rock is composed of recrystallized quartz, magnetite, riebeckite, stilpnomelane and associated with very tiny minerals with very high relief and interference colors. The assemblage suggests that there is a possibility that the rock is a metamorphic rock of iron-formations and derived from continent.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=小網晴男
en-aut-sei=小網
en-aut-mei=晴男
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=臼井まゆみ
en-aut-sei=臼井
en-aut-mei=まゆみ
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=Okayama Prefectural Okayama Asahi Senior High School
kn-affil=岡山県立岡山朝日高等学校

affil-num=3
en-affil=Fujigakuin-Okayama
kn-affil=富士学院
en-keyword=Continental origin
kn-keyword=Continental origin
en-keyword=Miocene conglomerate
kn-keyword=Miocene conglomerate
en-keyword=rounded pebble
kn-keyword=rounded pebble
en-keyword=iron-formations
kn-keyword=iron-formations
en-keyword=Kibi Plateau
kn-keyword=Kibi Plateau
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=24
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2017
dt-pub=20171227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=42
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A case study on the cyclone activity around Europe from winter to spring of 2000
kn-title=ヨーロッパの冬から春にかけての 低気圧活動に関する事例解析（2000年を例に）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Although the extratropical cyclone is one of the basic systems that characterize the weather and climate in mid-latitude regions with the large meridional temperature gradient, its activity and characteristics would be greatly influenced by the seasonal transition and regional differences of the mean atmospheric fields such as between Europe and East Asia. Furthermore, detailed knowledge of the daily cyclone activity would help to understand deeply the differences of regional climatology including seasonal cycles among various areas. In such interest, the present study performed a case study on the cyclone activity around Europe from winter to spring of 2000. In winter, intraseasonal variation of the Icelandic Low was dominant. In the stage when such intraseasonal-scale Icelandic Low approached to the northwestern Europe, the several lows passed eastward with a few days interval around the intraseasonal-scale low pressure area or its southern edge where the baroclinicity was relatively strong. It is also noted that their center pressure was rather low (below 980hPa). After April, when the seasonal mean Icelandic low had disappeared, different types of the intra-seasonal-scale cyclones and anticyclones were dominantly observed. In the lower SLP stage of the intraseasonal variation in Europe, the low to the southwest of England in the middle of April was of the equivalent barotropic structure and persisted for about ten days. On the other hand, high pressure area extending from England to the northern coast of Germany also persisted for about half month. The southern half of that high area was also of equivalent barotropic structure with warmer air there.
en-copyright=
kn-copyright=

en-aut-name=KuwanaYusuke
en-aut-sei=Kuwana
en-aut-mei=Yusuke
kn-aut-name=桑名佑典
kn-aut-sei=桑名
kn-aut-mei=佑典
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=TakigawaYumi
en-aut-sei=Takigawa
en-aut-mei=Yumi
kn-aut-name=瀧川優実
kn-aut-sei=瀧川
kn-aut-mei=優実
aut-affil-num=3
ORCID=

en-aut-name=KojimaYumi
en-aut-sei=Kojima
en-aut-mei=Yumi
kn-aut-name=小嶋ゆう実
kn-aut-sei=小嶋
kn-aut-mei=ゆう実
aut-affil-num=4
ORCID=

en-aut-name=OtaniKazuo
en-aut-sei=Otani
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学教育部 （理科 ）

affil-num=2
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学院教育研究科自然系 （理科 ）

affil-num=3
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学教育部 （理科 ）

affil-num=4
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学教育部 （理科 ）

affil-num=5
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学院自然科学研究科
en-keyword=cyclone activity around Europe
kn-keyword=cyclone activity around Europe
en-keyword=comparative climatology between Europe and East Asia
kn-keyword=comparative climatology between Europe and East Asia
en-keyword=seasonal cycle
kn-keyword=seasonal cycle
en-keyword=dynamic climatology
kn-keyword=dynamic climatology
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=17
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Synoptic climatological analyses on the rainfall features in southern Kyushu and the atmospheric fields around April
kn-title=九州南部における4月頃の大雨日の降水の特徴と 大気場に関する総観気候学的解析
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Around April, total precipitation in southern Kyushu already attains rather large value due to the increase in contribution of the “heavy rainfall days” (with daily precipitation more the 50 mm/day, referred to as HRD). The present study examined the rainfall features and atmospheric conditions on the HRDs at Kagoshima in southern Kyushu, based on the operational observation data from 1990 to 2009. The HRDs there in April appeared mainly associated with the extratropical cyclone passage, together with tentative appearance of the stationary front. The mean daily precipitation on the HRDs was 82 mm and contribution of the intense rainfall more than 10 mm/h attained up to 38 mm, which accounted for 46 % of the daily total precipitation. In April, the high specific humidity area in the time mean field was still located far to the south of the Japan Islands and the stratification around the Japan Islands was very stable for deep moist convection. However, the zone with rather strong seasonal mean baroclinicity extended to rather southern area near 20°N. This would provide a favorable condition for the long-distance moistur
en-copyright=
kn-copyright=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=1
ORCID=

en-aut-name=MorizukaNozomi
en-aut-sei=Morizuka
en-aut-mei=Nozomi
kn-aut-name=森塚望
kn-aut-sei=森塚
kn-aut-mei=望
aut-affil-num=2
ORCID=

en-aut-name=Matsumoto(Kengo
en-aut-sei=Matsumoto
en-aut-mei=(Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=3
ORCID=

en-aut-name=OtaniKazuo
en-aut-sei=Otani
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=4
ORCID=

affil-num=1
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学院教育研究科自然系 （理科 ）

affil-num=2
en-affil=Faculty of Education, Okayama University
kn-affil=岡山大学教育部 （理科 ）

affil-num=3
en-affil=Graduate School of Education, Okayama University
kn-affil=岡山大学院教育研究科自然系 （理科 ）

affil-num=4
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学院自然科学研究科
en-keyword=heavy rainfall around April in southern Kyushu
kn-keyword=heavy rainfall around April in southern Kyushu
en-keyword=rainfall associated with extratropical cyclones around the Japan Islands
kn-keyword=rainfall associated with extratropical cyclones around the Japan Islands
en-keyword=seasonal cycle around Japan
kn-keyword=seasonal cycle around Japan
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=15
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Prelithification shear structures of m?lange unit in Shiofuki-iwa area, the upper Cretaceous Shimanto Belt, Wakayama Prefecture, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= Analyzing of sedimentary facies and structure together with regional field mapping were studied in the m?lange unit, upper Cretaceous Shimanto Belt, Wakayama Pref., SW Japan. The field survey was concentrated in the coast of Shiofuki-iwa, Miyama Complex, Hidakagawa Belt where soft deformations penetrate throughout the m?lange unit. Brittle to ductile faults associated as later deformations are excluded. The m?lange unit is subdivided into the Y-shear zone (YSZ) and P-foliation zone (PFZ). The YSZ is composed of thick lenticular sandstone (trends subparallel to the direction of the m?lange), intense shear band (thin layer with concentrated prelithification shear deformation) and mudstone dominant m?lange. The PFZ is composed of mudstone dominant m?lange (associated with foliations which slightly oblique to the direction of the YSZ) and lenticular sandstone (slightly oblique to the direction of the YSZ). The intense shear band separates the YSZ and PFZ. Preserved radiolarian fossils free from deformation in the intense shear band is the evidence of the prelithification shear deformation in the m?lange. A remarkable-fact is that the structures of m?lange unit are formed under sinistral sense of shear. The m?lange unit in the Shiofuki-iwa is ascribed to be formed by sinistral sense of shear during sediments were prelithified.
en-copyright=
kn-copyright=

en-aut-name=TakesueNorito
en-aut-sei=Takesue
en-aut-mei=Norito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=m?lange
kn-keyword=m?lange
en-keyword=Shimanto Belt
kn-keyword=Shimanto Belt
en-keyword=Y-shear zone
kn-keyword=Y-shear zone
en-keyword=P-foliation zone
kn-keyword=P-foliation zone
en-keyword=intense shear band
kn-keyword=intense shear band
en-keyword=prelithification structures
kn-keyword=prelithification structures
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=7
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Risk prediction of landslide and debris flow using slope gradation map obtained from airborne laser scanning
kn-title=航空レーザ傾斜量図を用いた斜面・土石流危険箇所抽出の試み
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The slope gradation map which is obtained from airborne laser scanning is very important tool to detect hazardous sites of landslide, debris flow and others. The features of the images (what the images are represented) in the map were confirmed by field survey. The study area, Tamagashi is situated in the Kibi Plateau area, Okayama City, Japan. The map helps to distinguish between artificial microrelief and natural microtopography very well. Small scarps (even 0.5m high), rocky cliffs and large blocks (larger than 2m) are identified in the map. The detail images of the microrelief suggest threatening sites. The merit of the map leads us to find the site in the field easily. We will not miss the threatening sites by using the map.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=MiyashitaMasashi
en-aut-sei=Miyashita
en-aut-mei=Masashi
kn-aut-name=宮下征士
kn-aut-sei=宮下
kn-aut-mei=征士
aut-affil-num=2
ORCID=

en-aut-name=HirakawaTakeshi
en-aut-sei=Hirakawa
en-aut-mei=Takeshi
kn-aut-name=平川武
kn-aut-sei=平川
kn-aut-mei=武
aut-affil-num=3
ORCID=

en-aut-name=FujiwaraMieko
en-aut-sei=Fujiwara
en-aut-mei=Mieko
kn-aut-name=藤原身江子
kn-aut-sei=藤原
kn-aut-mei=身江子
aut-affil-num=4
ORCID=

en-aut-name=NishiyamaSatoshi
en-aut-sei=Nishiyama
en-aut-mei=Satoshi
kn-aut-name=西山哲
kn-aut-sei=西山
kn-aut-mei=哲
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=WESCO co.
kn-affil=株式会社ウエスコ

affil-num=3
en-affil=WESCO co.
kn-affil=株式会社ウエスコ

affil-num=4
en-affil=WESCO co.
kn-affil=株式会社ウエスコ

affil-num=5
en-affil=Graduate School of Environmental and Life Science, Okayama University
kn-affil=岡山大学大学院環境生命科学研究科
en-keyword=Risk prediction
kn-keyword=Risk prediction
en-keyword=slope gradation map
kn-keyword=slope gradation map
en-keyword=airborne laser scanning
kn-keyword=airborne laser scanning
en-keyword= landslide
kn-keyword= landslide
en-keyword=debris flow
kn-keyword=debris flow
en-keyword=Okayama
kn-keyword=Okayama
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=23
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2016
dt-pub=20161227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University 
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=31
end-page=39
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Facies analysis of the Jito Formation ( Upper Triassic Nariwa Group ) in Jito Area, Kawakami, Okayama Pref., SWJapan.
kn-title=岡山県川上町地頭地域における上部三畳系成羽層群地頭層の層相解析
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Facies analysis and analysis of stratigraphy together with folded structure of the Norian Jito Formation were studied in Jito Area, Kawakami, Okayama Pref., SW Japan. Results of regional mapping and measured sections reconstruct three-dimensionally distribution of the Jito Formation. The Jito Formation is sub-divided into the four new members; the Shimohira Muddy Sandstone Member, the Otofuji Coarse-grained Turbidite Member, the Misawa Fine-grained Turbidaite Member, and the Ide Conglomerate Sandstone Member in ascending order. The shimohira Muddy Sandstone Member is interpreted to be deposited in an inner-bay. The Otofuji Coarse-grained Turbidite Member and The Misawa Fine-grained Turbidite Member are considered to be deposited on a continental shelf. The Ide Conglomerate Sandstone Member is inferred to be a shallow marine deposit. As a result, the Jito Formation is regarded as one transgressive-regressive package.
en-copyright=
kn-copyright=

en-aut-name=MasaokaYuto
en-aut-sei=Masaoka
en-aut-mei=Yuto
kn-aut-name=正岡祐人
kn-aut-sei=正岡
kn-aut-mei=祐人
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究
en-keyword=Jito Formation
kn-keyword=Jito Formation
en-keyword=Nariwa Group
kn-keyword=Nariwa Group
en-keyword=Norian
kn-keyword=Norian
en-keyword=facies analysis
kn-keyword=facies analysis
en-keyword=turbidite
kn-keyword=turbidite
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=30
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Petrography of foundation stones of the Bizen Kokubunji Temple, Okayama Prefecture, Japan ―an attempt to identify their collected site―
kn-title=備前国分寺礎石の岩石特徴と産地の推定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Bizen Kokubunji Temple was constructed in the 8th century, in Maya, Akaiwa City, Okayama. Only foundation stones are preserved. Geological characteristics of the foundation stones suggest that they are collected from mountain area of Maya, about 300 to 800m west from the site. The similarity of the foundation stones and the rocks Maya are identified by the following characteristics. 1) Assemblage of rock types (high grade welded tuff breccia, tuff breccia, tuffaceous sandstone and conglomerate) are the same. 2) Lithology of the 3 rock type of the foundation stones and the rocks from Maya are the same. 3) Rheomorphic flow structures are developed in both high grade welded tuff breccia. 4)Mudstone fragments are contained in both high grade welded tuff breccia tuff breccia.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=NishimuraNorihide
en-aut-sei=Nishimura
en-aut-mei=Norihide
kn-aut-name=西村仁秀
kn-aut-sei=西村
kn-aut-mei=仁秀
aut-affil-num=2
ORCID=

en-aut-name=ArigaYuji
en-aut-sei=Ariga
en-aut-mei=Yuji
kn-aut-name=有賀祐史
kn-aut-sei=有賀
kn-aut-mei=祐史
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究

affil-num=2
en-affil=
kn-affil=応用地質株式会社

affil-num=3
en-affil=
kn-affil=岡山県赤磐市教育委員会
en-keyword=Bizen Kokubunji Temple
kn-keyword=Bizen Kokubunji Temple
en-keyword=foundation stone
kn-keyword=foundation stone
en-keyword=collected site
kn-keyword=collected site
en-keyword=Okayama
kn-keyword=Okayama
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=23
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Application of simulated annealing to focal mechanism determination
kn-title=焼きなまし法による初動発震機構解の決定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Simulated annealing (SA) is known as one of the efficient methods for global optimization. It allows for getting an optimal solution by jumping out of local minimum. In this paper, we apply the simulated annealing to determination of focal mechanism solution. To investigate the feasibility of the application, we determine focal mechanism solution of the 14 March 2014 Iyo-Nada intermediatedepth earthquake. The computation of SA method is then 1278 times faster than that of the grid search method.
en-copyright=
kn-copyright=

en-aut-name=KomatsuMasanao
en-aut-sei=Komatsu
en-aut-mei=Masanao
kn-aut-name=小松正直
kn-aut-sei=小松
kn-aut-mei=正直
aut-affil-num=1
ORCID=

en-aut-name=TakenakaHiroshi
en-aut-sei=Takenaka
en-aut-mei=Hiroshi
kn-aut-name=竹中博士
kn-aut-sei=竹中
kn-aut-mei=博士
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=focal mechanism solution
kn-keyword=focal mechanism solution
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=7
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The effect of the seismic attenuation on the S-wave polarization anisotropy
kn-title=地震波の減衰がS 波偏向異方性に及ぼす影響
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We investigate the effect of the seismic attenuation on the shear-wave polarization anisotropy by numerical experiments. For the experiments, the P-wave receiver functions are synthesized by assuming that a plane P wave is incident on an anisotropic multi-layer structure with anelastic properties. The synthetic receiver function shows smooth Ps phase waveforms with small amplitudes due to the attenuation of high-frequency spectral components, compared to that calculated for a multi-layer structure with perfect elasticity. From the shear-wave splitting of the Ps converted phases in the synthetic receiver functions, the S-wave polarization anisotropies for the anisotropic layers are measured as a function of propagation direction of the incident P wave. Consequently, we conclude that the seismic attenuation has a minor influence on the measurements of the S-wave polarization anisotropy.
en-copyright=
kn-copyright=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=shear-wave polarization anisotropy
kn-keyword=shear-wave polarization anisotropy
en-keyword=shear-wave splitting
kn-keyword=shear-wave splitting
en-keyword=seismic attenuation
kn-keyword=seismic attenuation
en-keyword=Psconverted phase
kn-keyword=Psconverted phase
en-keyword=P-wave receiver function
kn-keyword=P-wave receiver function
END

start-ver=1.4
cd-journal=joma
no-vol=22
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=20151227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=43
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Precipitation characteristics and large-scale atmospheric fields on the heavy rainfall days in the eastern part of Japan (Climatological features in midsummer and the supplemental study for the Baiu season)
kn-title=東日本の大雨日の降水特性や総観場の解析（盛夏期の気候学的特徴と梅雨最盛期に関する補遺）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Rainfall characteristics and large-scale atmospheric fields on the “heavy rainfall days” (with more than
50mm/day) in midsummer, and so on, at Tokyo in the eastern Japan were examined for 1971 to 2010,
succeeding to Matsumoto et al. (2013)
　The present study firstly examined the rainfall features and the atmospheric fields for the “heavy rainfall
days” at Tokyo with rather lower appearance frequency than in the typhoon related patterns in Matsumoto et
al. (2013) and so on. In these cases (three cases in total), although the synoptic situations were rather
different among each other, they seem to occur under the systems with relatively small zonal scale
associated with the great meander of the upper-level westerly wind.
　Next, the climatological analyses similar to Matsumoto et al. (2013) were performed for the "heavy rain
days" at Tokyo in midsummer (1~31 August). The precipitation on the “heavy rainfall days” at Tokyo in
midsummer was mainly brought by the intense rainfall with more than 10 mm/h, as in the western Japan in
the mature stage of the Baiu season. The detailed examination of the rainfall features for the case on 10
August 2009, with use of the 10-minutes precipitation data and the Radar AMeDAS Composite Data by the
JMA, revealed that the organized meso-β-scale convective rainfall systems as often appear in the western
Japan in the mature stage of the Baiu season were just to the east of the typhoon, and brought the intense
rainfall at Tokyo to result in the large daily precipitation.
en-copyright=
kn-copyright=

en-aut-name=MatusmotoKengo
en-aut-sei=Matusmoto
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=OtaniKazuo
en-aut-sei=Otani
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学教育学部（理科）

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系（理科）

affil-num=3
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=rainfall characteristics in eastern Japan
kn-keyword=rainfall characteristics in eastern Japan
en-keyword=heavy rainfall in eastern Japan in the Baiu and midsummer seasons
kn-keyword=heavy rainfall in eastern Japan in the Baiu and midsummer seasons
en-keyword=rainfall climatology
kn-keyword=rainfall climatology
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A preliminary study on the seasonal cycles of the cyclone activity and the large-scale fields in Europe at the viewpoint comparing with those in East Asia
kn-title=東アジアとの比較の視点でみたヨーロッパにおける低気圧活動と広域場の季節サイクル（序報）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Preliminary analyses on the seasonal cycles of the large-scale atmospheric mean fields and the cyclone
activity in Europe were performed based mainly on the NCEP/NCAR re-analysis data, at the viewpoint
comparing with those in East Asia.
　As for the climatological monthly mean fields (1981~2010), the meridional temperature gradient in East
Asia presents striking seasonal change with the maximum in winter and the minimum in summer. It is
interesting that such transition from winter to summer and that from summer to winter occur rather rapidly
accompanied by the great temperature increase around April to June and the decrease around October to
November, respectively, in a wide region of 40~70N. On the other hand, the temperature gradient in
Europe is significantly smaller with slight seasonal change than that in East Asian winter.
　By the way, in spite of the above difference of the horizontal temperature gradient between Europe and
East Asia, the cyclone activity does not seem to be so weak even around Europe. Thus, the seasonal cycles
of the characteristics of the cyclones and their environmental fields around Europe were examined. At the
first step, we analyzed the daily cyclone activity in Europe for January and July of 2000. Many low pressure
centers at the surface level appeared in both January and July. Referring also to the daily maps of sea level
pressure and geopotential height at 500 hPa level, we found that not only the cyclones corresponding to the
baroclinic instability waves, but also to the cold vortices which amplitudes increased with height appeared
frequently. Moreover, it is interesting that the large-scale cold vortex, which embeds the shortwave trough
with the low center at the surface level, appeared in the northern Europe in July as in East Asian winter,
when such multi-scale systems sometimes bring the persisting heavy snowfall events in the Japan Sea side of
the Japan Islands.
en-copyright=
kn-copyright=

en-aut-name=TakigawaYumi
en-aut-sei=Takigawa
en-aut-mei=Yumi
kn-aut-name=瀧川優実
kn-aut-sei=瀧川
kn-aut-mei=優実
aut-affil-num=1
ORCID=

en-aut-name=HagaYuichi
en-aut-sei=Haga
en-aut-mei=Yuichi
kn-aut-name=垪和優一
kn-aut-sei=垪和
kn-aut-mei=優一
aut-affil-num=2
ORCID=

en-aut-name=MatsumotoKengo
en-aut-sei=Matsumoto
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=3
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学教育学部（理科）

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系（理科）

affil-num=3
en-affil=
kn-affil=岡山大学教育学部（理科）

affil-num=4
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系（理科）
en-keyword=seasonal cycle
kn-keyword=seasonal cycle
en-keyword=cyclone activity
kn-keyword=cyclone activity
en-keyword=Europe and East Asia
kn-keyword=Europe and East Asia
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=21
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Aerosol observation at Okayama with Skyradiometer and LIDAR
kn-title=スカイラジオメーターとライダーを用いた岡山上空のエアロゾル観測
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　Aerosol is one of the controlling parameter for the global climate and also effects on local health hazards. The measurement of the aerosol was originally carried out as in-situ sampling and mass weight measurement including chemical analysis. Recently, remote sensing method is applied as satellite remote sensing and surface based remote sensing. Skyradiometer and LIDAR are surface based remote sensing system. Skyradiometer measures solar radiation as direct and scattered solar radiation affected by aerosols. LIDAR emit laser beam upward and it is backscattered by overlying aerosols. The backscattered light is received by a telescope and vertical distributions of the aerosols are obtained. These measurements require atmospheric
radiation physics.
　A Skyradiometer and a LIDAR were operated continuously at Okayama University campus and aerosol parameters were obtained from both of the system. Seasonal variations of the AOT (Aerosol Optical Thickness) and Angstrom parameter (α) are evaluated. During some dust events (e.g. yellow sand and PM2.5), time variations of these parameters were identified from both of the measurement system.
en-copyright=
kn-copyright=

en-aut-name=NagamatsuSinpei
en-aut-sei=Nagamatsu
en-aut-mei=Sinpei
kn-aut-name=永松慎平
kn-aut-sei=永松
kn-aut-mei=慎平
aut-affil-num=1
ORCID=

en-aut-name=EgawaDaiki
en-aut-sei=Egawa
en-aut-mei=Daiki
kn-aut-name=江川大貴
kn-aut-sei=江川
kn-aut-mei=大貴
aut-affil-num=2
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Aerosol
kn-keyword=Aerosol
en-keyword=Skyradiometer
kn-keyword=Skyradiometer
en-keyword=LIDAR
kn-keyword=LIDAR
en-keyword=Aerosol Optical Thickness (AOT)
kn-keyword=Aerosol Optical Thickness (AOT)
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=11
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Paleoparadoxia from the middle Miocene of Obara, Misaki-cho, Okayama Prefecture, Japan
kn-title=岡山県美咲町小原周辺に分布する中部中新統からのPaleoparadoxiaの産出報告
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　The partially preserved left humerus of the Desmostylia (Mammalia) has been collected from the riverbed in Obara, Misaki-cho, Okayama Prefecture in the western Japan. This specimen can be classified to the genus Paleoparadoxia by the following features: the absence of the supratrochlear foramen; the curved disto-lateral border of the shaft in the antero-posterior view; the medio-laterally expanded flat trochlea of
humerus. Moreover, this specimen can be referred to cf. P. media on the basis of its middle-sized dimensions. This is the second occurrence of Palaeoparadoxia from Okayama Prefecture.
en-copyright=
kn-copyright=

en-aut-name=FukuchiAkira
en-aut-sei=Fukuchi
en-aut-mei=Akira
kn-aut-name=福地亮
kn-aut-sei=福地
kn-aut-mei=亮
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=株式会社 阪神コンサルタンツ 川内調査事務所

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Middle Miocene
kn-keyword=Middle Miocene
en-keyword=mammal
kn-keyword=mammal
en-keyword=Desmostylia
kn-keyword=Desmostylia
en-keyword=Paleoparadoxia
kn-keyword=Paleoparadoxia
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=5
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A high precision and high resolution estimation of the spatial distribution of PM2.5 in the south area of Okayama prefecture, Japan
kn-title=岡山県南部におけるPM2.5の高精度高解像度空間分布推定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=　A relatively high precision and high resolution spatial distribution of the PM2.5 in the south part of the Okayama prefecture, Japan was estimated by the Universal Kriging method and the FOSS4G GIS softwares.
The observation data of the PM2.5 were obtained from the Environmental data service site of the Okayama prefecture. The geospatial open data about the research field that used in the research were served by the government research institutes. The spatial analysis were executed by the R (R core team, 2014) and its spatial libraries, maptools (Bivand and Lewin-Koh, 2014), rgdal (Bivand, Keitt and Rowlingson, 2014) and gstat (Pebesma, 2014). The geospatial representation and qualitative analysis of the estimated distribution were
performed by the QGIS (QGIS Development Team, 2014) and the Google earth (Google, 2014). The time
variant of the PM2.5 concentration by the each observatories in the area were show some cross correlation
factor to the SPM10 concentration data. The estimated PM2.5 distribution seems to show that the relatively
tight relation to the geospatial factors in the research area. The estimation of a time variant change of the
PM2.5 distribution will be required of the further research..
en-copyright=
kn-copyright=

en-aut-name=OmoriAkiho
en-aut-sei=Omori
en-aut-mei=Akiho
kn-aut-name=大森秋穂
kn-aut-sei=大森
kn-aut-mei=秋穂
aut-affil-num=1
ORCID=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=PM2.5
kn-keyword=PM2.5
en-keyword=Spatial statistics
kn-keyword=Spatial statistics
en-keyword=Kriging
kn-keyword=Kriging
en-keyword=R-language
kn-keyword=R-language
en-keyword=gstat
kn-keyword=gstat
en-keyword=FOSS4G
kn-keyword=FOSS4G
en-keyword=Google earth
kn-keyword=Google earth
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=21
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2014
dt-pub=20141227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=34
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Preliminary analyses on the climatological features of precipitation characteristics and large-scale atmospheric fields on the heavy rainfall days in the eastern part of Japan during the mature stage of the Baiu season
kn-title=梅雨最盛期における東日本の大雨日の降水特性や総観場に関する気候学的解析（序報）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Rainfall characteristics and large-scale atmospheric fields on the “heavy rainfall days” (with more than 50
mm/day) in the mature stage of the Baiu season (16 June ~ 15 July) at Tokyo in the eastern part of the Japan
Islands were examined, based on the daily and the hourly precipitation data from 1971 to 2010.
Appearance frequency of the “heavy rainfall days” at Tokyo attained only about 1/3 of that at Nagasaki in
the western Japan. Furthermore, it is noted that about half of the “heavy rainfall days” at Tokyo were related
to the typhoon. In detail, about half of the typhoon cases were associated with the direct approach of a
typhoon (referred to as Pattern A, hereafter), the other half corresponded to the situation when the Baiu front
also stagnated around Kanto District with a typhoon to the southwest of Kanto (Pattern B).
Although the contribution of the intense rainfall with more than 10 mm/h to the total precipitation was
large in Pattern A, that with less than 10 mm/h was dominant in Patterns B and C (Pattern C: meso-α-scale
cyclone on the Baiu front approaching to the Kanto District). It is noted that about half of the “heavy rainfall
days” corresponded to these pattern. In other words, unlike the localized torrential rain in western Japan, the
“heavy rainfall days” due to the duration of “not-so-intense-rain” appeared rather frequently in the eastern
part of Japan even in the Baiu season.
In both Patterns B and C, relatively strong low-level southerly wind associated with the disturbance (a
typhoon or a meso-α-scale cyclone) invades into the baroclinic zone in the basic field sustained as the
sowthwestern edge of the cool Okhotsk air mass. It is interesting that the “heavy rainfall days” there due to
the contribution of the persistent “not-so-intense-rain” occur just in such situation.
en-copyright=
kn-copyright=

en-aut-name=MatsumotoKengo
en-aut-sei=Matsumoto
en-aut-mei=Kengo
kn-aut-name=松本健吾
kn-aut-sei=松本
kn-aut-mei=健吾
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=OtaniKazuo
en-aut-sei=Otani
en-aut-mei=Kazuo
kn-aut-name=大谷和男
kn-aut-sei=大谷
kn-aut-mei=和男
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学教育学部（理科）

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科

affil-num=3
en-affil=
kn-affil=岡山大学大学院自然系科学研究科
en-keyword=rainfall characteristics in eastern Japan
kn-keyword=rainfall characteristics in eastern Japan
en-keyword=heavy rainfall in eastern Japan in Baiu season
kn-keyword=heavy rainfall in eastern Japan in Baiu season
en-keyword=rainfall climatology
kn-keyword=rainfall climatology
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A case study on the rainfall distribution over the Japan Islands associated with the approach of Ty0423 in late October (Comparison with that for Ty0418)
kn-title=2004年10月後半の台風23号に伴う日本列島での広域の降水（台風18号と比較して）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Rainfall distribution in the Japan Islands associated with the approach of Typhoon No.23 around 20 October
2004 (referred to Ty0423, hereafter) showed considerably different features from those in late summer of this
year. The present study examined the detailed rainfall features around the Japan Islands brought by Ty0423
and the atmospheric processes based on the operational observation data by the Japan Meteorological Agency
(JMA), comparing with those in association with Ty0418 around 7 September 2004.
During the stage when Ty0423 was approaching or landing on the western part of the Japan Islands, the
areal mean precipitation from Kyushu to Kanto District attained much larger than that for Ty0418, with wider
extension of the area with the large amount of precipitation. It is interesting that, although the intense rainfall
was observed only at the upstream side of the mountain range from Kyushu to Honshu District for Ty0418
except for the area near its center, strong rainfall with 10~30 mm/h persisted in wider regions from the western
to the eastern part of the Japan Islands, resulting in the considerably large total rainfall for Ty0423.
As for the case for Ty0423, the surface front with stable frontal surface was located just to the east of the
Ty0423 center just before its landing at the Japan Islands. Thus, the huge moisture inflow mainly in the eastern
region from the typhoon center seems to be redistributed widely over the Japan Islands area associated with
the large-scale convergence around the stable frontal surface. In late October, the colder air associated with
the high pressure system in the eastern Siberia can cover the northern part of the Japan Sea area as the seasonal
march. Such basic field might be favorable for sustaining the synoptic-scale front just around the southern
coast of the Japan Islands, even when the strong southerly wind invades associated with the typhoon approach
there.
en-copyright=
kn-copyright=

en-aut-name=SatakeAi
en-aut-sei=Satake
en-aut-mei=Ai
kn-aut-name=佐竹愛
kn-aut-sei=佐竹
kn-aut-mei=愛
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=MoriYoshinori
en-aut-sei=Mori
en-aut-mei=Yoshinori
kn-aut-name=盛宣誠
kn-aut-sei=盛
kn-aut-mei=宣誠
aut-affil-num=3
ORCID=

en-aut-name=GodaYasuhiro
en-aut-sei=Goda
en-aut-mei=Yasuhiro
kn-aut-name=合田泰弘
kn-aut-sei=合田
kn-aut-mei=泰弘
aut-affil-num=4
ORCID=

en-aut-name=IkedaShoichiro
en-aut-sei=Ikeda
en-aut-mei=Shoichiro
kn-aut-name=池田祥一郎
kn-aut-sei=池田
kn-aut-mei=祥一郎
aut-affil-num=5
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科

affil-num=3
en-affil=
kn-affil=

affil-num=4
en-affil=
kn-affil=

affil-num=5
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=6
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Ty0423
kn-keyword=Ty0423
en-keyword=Ty0418
kn-keyword=Ty0418
en-keyword=rainfall in Japan associated with a typhoon in mid-autumn
kn-keyword=rainfall in Japan associated with a typhoon in mid-autumn
en-keyword=effects of a typhoon on the synoptic climatology in Japan in October
kn-keyword=effects of a typhoon on the synoptic climatology in Japan in October
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=11
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=On Periploma mitsuganoense Araki (Bivalvia: Mollusca) from the Miocene Bihoku Group in Niimi City, Okayama Prefecture, southwest Japan ―with special reference to it’s paleogeographic significance―
kn-title=岡山県新見市の中新世備北層群からのPeriploma mitsuganoense Araki (Bivalvia: Mollusca)について　―特にその古地理学的意義―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we deal with re-description of Periploma mitsuganoense Araki and it’s morphological
variation and significance of the molluscan fauna of it from the Miocene Bihoku Group in Niimi City,
Okayama Prefecture, Southwest Japan. Moreover, the paleogeographic significance of this species is analyzed.
The obtained results are summarized as follows:
1. The morphological variation of Periploma mitsuganoense Araki has a wide range on the basis of the
analysis of the morphological outline.
2. The occurrence of P. mitsuganoense Araki from the Pectinid fauna is the first record in the West Setouchi
Geological Province.
3. It is presumable that P. mitsuganoense Araki is an endemic species in the First Setouchi Geological
Province from a view point of it’s spatial distribution.
en-copyright=
kn-copyright=

en-aut-name=TaguchciEiji
en-aut-sei=Taguchci
en-aut-mei=Eiji
kn-aut-name=田口栄次
kn-aut-sei=田口
kn-aut-mei=栄次
aut-affil-num=1
ORCID=

en-aut-name=KishimotoShingo
en-aut-sei=Kishimoto
en-aut-mei=Shingo
kn-aut-name=岸本眞五
kn-aut-sei=岸本
kn-aut-mei=眞五
aut-affil-num=2
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=

affil-num=2
en-affil=
kn-affil=

affil-num=3
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Periploma mitsuganoense Araki
kn-keyword=Periploma mitsuganoense Araki
en-keyword=Mollusca
kn-keyword=Mollusca
en-keyword=Miocene
kn-keyword=Miocene
en-keyword=Bihoku Group
kn-keyword=Bihoku Group
en-keyword=morphological variation
kn-keyword=morphological variation
en-keyword=paleogeographic significance
kn-keyword=paleogeographic significance
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=6
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Debris avalanche occurred in Kitamura area, Kurashiki City, Okayama Prefecture
kn-title=岡山県倉敷市北村地域で発生した土石流災害の特徴と要因
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The debris avalanche occurred in Kitamura area, Kurashiki City, Okayama Prefecture caused by the hard
rain of Typhoon 12 of September, 2011. Furthermore, 11 small landslides occurred in the study area. In this
area, the altitude of mountainous are not so high (150m to 250m) and the amount of precipitation which
producted the debris avalanche was not very serious quantity with 230mm. However the debris avalanche
occurred. One private house collapsed, and the first floor part of the Kitamura Elementary School was buried
due to the debris flow. The purpose of this study is to examine causes of the debris avalanche disaster
occurred in Kitamura area using applied geological technique. The length of the debris avalanche scar is
about 250m, and alluvial fan is formed as a debris slope. The ground is composed of weathered granite and
the bottom of the valley was filled by soils derived from disintegrated granite. There are three small
landslides as head scarps with steep slopes at approximately 30°-35°. The debris avalanche was inferred to
have started as a shallow soil slip at the head by rainfall. 3 major causes are inferred which originated the
debris avalanche in the study area; steep slope, ground composed of weathered granite, existence of sandy
soil which occupied at the bottom of valley.
en-copyright=
kn-copyright=

en-aut-name=KimuraYuki
en-aut-sei=Kimura
en-aut-mei=Yuki
kn-aut-name=木村裕貴
kn-aut-sei=木村
kn-aut-mei=裕貴
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=debris avalanche
kn-keyword=debris avalanche
en-keyword=steep slope
kn-keyword=steep slope
en-keyword=weathered granite
kn-keyword=weathered granite
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=20
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2013
dt-pub=20131227
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告 投稿規定（約款）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A case study on persistent appearance of the ensemble of precipitation bands in the warm sector of the Baiu front in the western Japan around 19 June 2001
kn-title=地上梅雨前線の南方の九州における 線状降水帯の集団の維持について （2001年6月19日頃の事例解析）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A case study on persistent appearance of the ensemble of precipitation bands in the warm sector of the Baiu front in
Kyushu District, the western part of Japan around 19 June 2001 was performed based on the operational observational
data. Around 00UTC (09JST) 19 June when the Baiu front on the surface weather map was still located about a few
100kms to the north of Kyushu, the number and the total area of the meso-β or γ-scale line-shaped precipitation
bands increased around Kyushu rapidly. These precipitation bands had been sustained there and gradually gathered
each other to change into the Baiu frontal precipitation zone extending from the northern Kyushu to Seto-Naikai (Seto
Inland Sea) around 09UTC (18JST) 19 June (the intense rainfall zone was still located in the warm sector of the Baiu
front).
Until ~09UTC (18JST) 19 June, the moist air flow with the latently unstable stratification had been sustained
around Kyushu corresponding to the low-level southerly wind toward the surface Baiu front to the north of Kyushu.
This large-scale situation would contribute greatly to the maintenance of the ensemble of the line-shaped precipitation
bands in the warm sector of the Baiu front.
en-copyright=
kn-copyright=

en-aut-name=GodaYasuhiro
en-aut-sei=Goda
en-aut-mei=Yasuhiro
kn-aut-name=合田泰弘
kn-aut-sei=合田
kn-aut-mei=泰弘
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院教育学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系理科教育講座

affil-num=3
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=ensemble of line-shaped precipitation bands
kn-keyword=ensemble of line-shaped precipitation bands
en-keyword=precipitation in the warm sector of the Baiu front
kn-keyword=precipitation in the warm sector of the Baiu front
en-keyword=Baiu fronal rainfall
kn-keyword=Baiu fronal rainfall
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The oldest fossil forest in Japan discovered from the Upper Triassic Nariwa Group, Okayama Prefecture, SW Japan -Implication for reconstruction of depositional environment and paleovegetation-
kn-title=上部三畳系成羽層群における 日本最古の化石林の発見 ―堆積環境復元および古植生復元における意義―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Erect fossil stumps were found from the outcrop of the Upper Triassic Hinabata Formation, the uppermost part of
the Nariwa Group at Hinabata, Nariwa-cho,Takahashi City, Okayama Prefecture, SW Japan. They are evidence of
the oldest fossil forest in Japan. The Upper Triassic Nariwa Group is mostly composed of non-marine deposits
except the marine Jito Formation and characterized by the abundance in plant fossils. The marine Jito Formation is
characterized by occurrence of Norian Monotis ochotica. On the basis of detailed observation of the occurrence of
erect fossil stumps, as well as sedimentary facies of fossil-bearing unit, the fossil forest was interpreted to have
grown on the top of the natural-levee units. One of the erect fossil stumps was identified as Xenoxylon sp.
en-copyright=
kn-copyright=

en-aut-name=YukawaHirokazu
en-aut-sei=Yukawa
en-aut-mei=Hirokazu
kn-aut-name=湯川弘一
kn-aut-sei=湯川
kn-aut-mei=弘一
aut-affil-num=1
ORCID=

en-aut-name=TeradaKazuo
en-aut-sei=Terada
en-aut-mei=Kazuo
kn-aut-name=寺田和雄
kn-aut-sei=寺田
kn-aut-mei=和雄
aut-affil-num=2
ORCID=

en-aut-name=SunGe
en-aut-sei=Sun
en-aut-mei=Ge
kn-aut-name=孫革
kn-aut-sei=孫
kn-aut-mei=革
aut-affil-num=3
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=福井県立恐竜博物館

affil-num=3
en-affil=
kn-affil=遼寧古生物博物館

affil-num=4
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=erect fossil stump
kn-keyword=erect fossil stump
en-keyword=fossil forest
kn-keyword=fossil forest
en-keyword=Nariwa Group
kn-keyword=Nariwa Group
en-keyword=Upper Triassic
kn-keyword=Upper Triassic
en-keyword=Xenoxylon
kn-keyword=Xenoxylon
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Estimation of SPM concentration distribution over the central Seto Inland Sea
kn-title=瀬戸内海中部上空におけるSPM濃度分布の推定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Ordinary Kriging, OK, and Regression Kriging, RK, are the spatial statistical methods that are possible to
estimate a horizontal distribution in a study area from discrete data. OK is the method which takes account of
only spatial auto-correlation structure of the data, while RK is the method which takes account of an interrelationship
between spatial auto-correlation structure and some auxiliary variables to minimize the estimation error.
Analytical processing for OK and RK methods was performed by the R-Language (R Core Team, 2012)
and its some additional libraries. The auxiliary variables required to perform RK method were prepared by a
GIS application, Quantum GIS (Quantum GIS Development Team, 2012). The 3-dimensional geographic representation
of the estimation maps was performed by the Google Earth (Google, 2012).
In this report, OK and RK methods were applied to one of the Earth scientific information, SPM (Supended
Particulate Matter). Then, these methods were considered by comparing two estimation maps, and finally
considered qualitatively by displaying these maps in the Google Earth.
en-copyright=
kn-copyright=

en-aut-name=EbiTakahiro
en-aut-sei=Ebi
en-aut-mei=Takahiro
kn-aut-name=海老貴宏
kn-aut-sei=海老
kn-aut-mei=貴宏
aut-affil-num=1
ORCID=

en-aut-name=MatsumotoHirofumi
en-aut-sei=Matsumoto
en-aut-mei=Hirofumi
kn-aut-name=松本宏文
kn-aut-sei=松本
kn-aut-mei=宏文
aut-affil-num=2
ORCID=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科地球科学専攻

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科地球科学専攻

affil-num=3
en-affil=
kn-affil=岡山大学大学院自然科学研究科地球科学専攻
en-keyword=Ordinary Kriging
kn-keyword=Ordinary Kriging
en-keyword=Regression Kriging
kn-keyword=Regression Kriging
en-keyword=Auxiliary variable
kn-keyword=Auxiliary variable
en-keyword=R-Language
kn-keyword=R-Language
en-keyword=Google Earth
kn-keyword=Google Earth
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=17
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The temperature and pressure conditions of synthetic Sibirskite and Parasibirskite
kn-title=シベリア石とパラシベリア石の安定温度圧力条件
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sibirskite (CaHBO ) and parasibirskite ? are in the relation of polymorphism, these are regarded as the alteration
products of takedaite (Ca?B?O?), occurs at Fuka mine, Okayama Prefecture. The synthesis of parasibirskite was
reported by the Sch?fer (1968a, b) etc. and the synthesis of sibirskite was reported by the Sun et al. (2011).
To determine the formation condition of sibirskite and parasibirskite in the natural, they were synthesized from
the natural takedaite (Ca?B?O?). As a result, both of sibirskite and parasibirskite were formed by the duration
time of 7 days with 1000 kg/cm2 and 300 oC, on the other hand, only sibirskite was formed by the duration time of
14 days with the same condition.
In addition, the mixtures of sibirskite and parasibirskite were examined under the various temperatures and
pressures of hydrothermal conditions. As a result, the upper limit of the stable temperature and pressure
conditions of sibirskite was estimated between 350 oC and 400 oC at 1500 kg/cm2, and between 400 oC and 450 oC
at 500 kg/cm2 . In the higher temperature than the condition, sibirskite were changed into shimazakiite (Ca?B?O?).
en-copyright=
kn-copyright=

en-aut-name=KanoMasahiro
en-aut-sei=Kano
en-aut-mei=Masahiro
kn-aut-name=狩野正裕
kn-aut-sei=狩野
kn-aut-mei=正裕
aut-affil-num=1
ORCID=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科
en-keyword=Sibirskite
kn-keyword=Sibirskite
en-keyword=Parasibirskite
kn-keyword=Parasibirskite
en-keyword=Shimazakiite
kn-keyword=Shimazakiite
en-keyword=Fuka
kn-keyword=Fuka
en-keyword=Hydrothermal synthesis
kn-keyword=Hydrothermal synthesis
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=5
end-page=11
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Folded structure of the Carboniferous Ko-yama Limestone Group, Akiyoshi Belt, SW JAPAN
kn-title=秋吉帯高山石灰岩層群の褶曲構造
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The fold structure of the Akiyoshi Belt was analyzed in Kawakami-cho, Okayama Prefecture, where the Lower
Carboniferous to Middle Permian Ko-yama Limestone Group (Yokoyama et al., 1979), Permian Yoshii Group
(Sano et al., 1987) and Triassic Nariwa Group (Teraoka, 1959) are distributed. The Nariwa Group unconformably
covers the Paleozoic successions (Otoh, 1985). The Lower Carboniferous to Middle Permian Ko-yama Limestone
Group, dated by foraminifers and fusulinids (Yokoyama et al., 1979), is mainly composed of massive limestone
with basic volcanics, acidic tuff and chert. The Paleozoic successions of the Akiyoshi Belt were folded during the
Middle to Late Permian (Suzuki et al., 1990). Strata of the Ko-yama Limestone Group generally strike E-W and
dip to the north. The Hoya section about 300 m thick is composed of limestone, basic tuff, chert and acidic tuff,
limestone, basic lava and tuff in ascending order. In this section, Ishida et al. (2012) recognized a nearly complete
conodont faunal succession ranging from the upper Visean to the lower Moscovian. The faunal succession
indicates younging southward, and the strata are overturned. A folded strucuture of tight overfold with
north-dipping axial plane was reconstructed. Similar style of small scale overfolds of banded chert and turbidite
were observed in the overlying Yoshii Group.
en-copyright=
kn-copyright=

en-aut-name=InadaNoriyuki
en-aut-sei=Inada
en-aut-mei=Noriyuki
kn-aut-name=稲田徳之
kn-aut-sei=稲田
kn-aut-mei=徳之
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=IshidaKeisuke
en-aut-sei=Ishida
en-aut-mei=Keisuke
kn-aut-name=石田啓祐
kn-aut-sei=石田
kn-aut-mei=啓祐
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=徳島大学大学院ソシオ・アーツ・アンド・サイエンス研究部基礎科学部門自然科学分野
en-keyword=folded structure
kn-keyword=folded structure
en-keyword=Ko-yama Limestone Group
kn-keyword=Ko-yama Limestone Group
en-keyword=Carboniferous
kn-keyword=Carboniferous
en-keyword=Akiyoshi Belt
kn-keyword=Akiyoshi Belt
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=4
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Holocene environmental and sea-level changes of the Okayama Plain ? evidence from peat beds ?
kn-title=岡山平野の泥炭層から推測される完新世の海水準変動と古環境変遷
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Quaternary peat beds from bore-hole samples deliver information to reconstruct paleoenvironment. Altitudes of
dated non-marine peat beds and marine beds allow to be created a sea-level curve. 4 peat beds (A to D) are
identified from the uppermost Pleistocene to Holocene deposits of the Okayama Plain. They thought to be
deposited at stable events during sea-level change.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Holocene
kn-keyword=Holocene
en-keyword=peat beds
kn-keyword=peat beds
en-keyword=paleoenvironment
kn-keyword=paleoenvironment
en-keyword=sea-level change
kn-keyword=sea-level change
en-keyword=Okayama Plain
kn-keyword=Okayama Plain
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=19
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2012
dt-pub=20121226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告投稿規定（約款）・奥付
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=11
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Characteristics of typhoon tracks and large-scale atmospheric fields associated with the typhoon approach to the Japan Islands in early summer
kn-title=初夏に日本列島付近へ北上する台風の進路や周辺場の特徴について
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The number of typhoons approaching the Japan Islands is much smaller in May and June than in August to September. However, some typhoons abnormally approach to the Japan Islands in May or June as in 2004. The present study investigated the characteristics of the typhoon tracks and the large-scale fields in May and June associated with the approach of typhoons to the Japan Islands. Climatologically speaking, typhoons are generally formed in the lower latitude in May and early June, and tend to turn to ENE-ward before they reach ~ 20N in May by the upper- and middle-level westerly wind. In June, the upper-level easterly wind associated with the Tibetan high seems to prevent typhoons from approaching to the Japan Islands. However, when the cell-type subtropical high and the deep westerly trough in its western side are formed with the SW-ly from the lower to the middle latitude, a favorable situation for the northward invasion of the typhoon can be realized in May. On the other hand, the formation of the barotropic-like subtropical high to the southeast of the Japan Islands seems to enable a typhoon to approach to the Japan Islands by the S-ly wind around the subtropical high.
en-copyright=
kn-copyright=

en-aut-name=HamamotoNatsumi
en-aut-sei=Hamamoto
en-aut-mei=Natsumi
kn-aut-name=濱本奈津美
kn-aut-sei=濱本
kn-aut-mei=奈津美
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

en-aut-name=NakayamaYuuki
en-aut-sei=Nakayama
en-aut-mei=Yuuki
kn-aut-name=中山祐貴
kn-aut-sei=中山
kn-aut-mei=祐貴
aut-affil-num=3
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系理科教育講座

affil-num=3
en-affil=
kn-affil=

affil-num=4
en-affil=
kn-affil=岡山大学大学院環境学研究科
en-keyword=typhoon tracks in early summer
kn-keyword=typhoon tracks in early summer
en-keyword=large-scale atmospheric fields in early summer
kn-keyword=large-scale atmospheric fields in early summer
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=5
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Newly proposed landform division in the Kibi Plateau area: Application for a hazard map of landslides
kn-title=岡山市北部吉備高原地域における地形区分―斜面防災のための試み―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Kibi Plateau is characterized by horizontal skylines and they are considered to be an uplifted peneplain. Landform of the plateaus in central part of Okayama Prefecture is divided into "Kibi plateau landform" and "Recent dissecting landform". The Kibi plateau landform is composed of low relief surface and relict mountain. The altitude of the low relief surface varies from 300 to 450m in Kayo area, and 200 to 350m in Kanayama area. The Recent dissecting landform is characterized by escarpment and cuts the Kibi plateau landform. Knick-point is formed at the boundary between two landforms and steep slope is distributed just below the knick-point. The steep slope of the recent dissecting landform is unstable and a potential of landslide is high.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=OmizoYuna
en-aut-sei=Omizo
en-aut-mei=Yuna
kn-aut-name=大溝佑奈
kn-aut-sei=大溝
kn-aut-mei=佑奈
aut-affil-num=2
ORCID=

en-aut-name=HirataMinoru
en-aut-sei=Hirata
en-aut-mei=Minoru
kn-aut-name=平田稔
kn-aut-sei=平田
kn-aut-mei=稔
aut-affil-num=3
ORCID=

en-aut-name=NishigakiMakoto
en-aut-sei=Nishigaki
en-aut-mei=Makoto
kn-aut-name=西垣誠
kn-aut-sei=西垣
kn-aut-mei=誠
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=3
en-affil=
kn-affil=

affil-num=4
en-affil=
kn-affil=岡山大学大学院環境学研究科
en-keyword=Kibi Plateau
kn-keyword=Kibi Plateau
en-keyword=landslide
kn-keyword=landslide
en-keyword=knick-point
kn-keyword=knick-point
en-keyword=Okayama Prefecture
kn-keyword=Okayama Prefecture
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=3
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=KED estimated distribution of Earth Scientific Information
kn-title=KED法を用いた地球科学情報の分布推定
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=KED, the Kriging with External Drift, is one of the spatial statistical method for estimating some distribution from the discrete spatial sampled data set about the research field. The KED uses the kriging method (Matheron, 1973) with some auxiliary map to minimize the estimated error. The KED procedure was performed by the R-Language (Ihaka and Gentleman, 1996) using some geostatistical libraries. The auxiliary maps required by the KED were prepared by the authors with some GIS applications. The 3-dimensional geographic representations for the estimated distribution were performed by the Google Earth (Google, 2011). In this report, the KED was applied to some Earth scientific information to show the fundamental scheme of the method.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=EbiTakahiro
en-aut-sei=Ebi
en-aut-mei=Takahiro
kn-aut-name=海老貴宏
kn-aut-sei=海老
kn-aut-mei=貴宏
aut-affil-num=2
ORCID=

en-aut-name=MatsumotoHirofumi
en-aut-sei=Matsumoto
en-aut-mei=Hirofumi
kn-aut-name=松本宏文
kn-aut-sei=松本
kn-aut-mei=宏文
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=KED
kn-keyword=KED
en-keyword=Universal kriging
kn-keyword=Universal kriging
en-keyword=Regression kriging
kn-keyword=Regression kriging
en-keyword=R-Language
kn-keyword=R-Language
en-keyword=Google Earth
kn-keyword=Google Earth
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=18
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2011
dt-pub=20111226
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=岡山大学地球科学研究報告投稿規定（約款）・奥付
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Representation of Earth scientific information by the Google(TM) Earth
kn-title=Google(TM) Earthによる地球科学情報の表示
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Google(TM) Earth is a GIS application provided by the Google, with versatile and high performance visualization and manipulation capability for geographic information. The Google Earth is also a multi-platform application, so the installation and running cost for research and education site is relatively low. The Earth
scientific information also have a geographic information scheme, so the Google Earth has some potential to support the education and research field of the Earth science. In this report, some Earth scientific information were converted by the R-Language and its libraries for represent by the Google Earth. The 3-dimensional representation of the information will be able to support to understanding the specification of the data for the Earth scientific research and education field.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=EbiTakahiro
en-aut-sei=Ebi
en-aut-mei=Takahiro
kn-aut-name=海老貴宏
kn-aut-sei=海老
kn-aut-mei=貴宏
aut-affil-num=2
ORCID=

en-aut-name=MatsumotoHirofumi
en-aut-sei=Matsumoto
en-aut-mei=Hirofumi
kn-aut-name=松本宏文
kn-aut-sei=松本
kn-aut-mei=宏文
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Earth scientific information
kn-keyword=Earth scientific information
en-keyword=GIS
kn-keyword=GIS
en-keyword=Google Earth
kn-keyword=Google Earth
en-keyword=Kriging
kn-keyword=Kriging
en-keyword=R-Language
kn-keyword=R-Language
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=23
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=DGEM: Digital Geological Elevation Model
kn-title=DGEM: 数値地質標高モデル
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=DGEM, a Digital Geological Elevation Model, was developed using the digital geological map and the JPGIS DEM data with some GIS application and the R-Language. In the model, the information of the geological map was combined with the DEM by their coordinates. The integration of those two digital map was performed by the R-Language, so the model can be used by some useful presentation library of the language, such as the RGL, or
by some geographical calculation libraries. Moreover, the DGEM will be used by the spatial statistical libraries of the R-Language to investigate some geological spatial distributed specifications.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=EbiTakahiro
en-aut-sei=Ebi
en-aut-mei=Takahiro
kn-aut-name=海老貴宏
kn-aut-sei=海老
kn-aut-mei=貴宏
aut-affil-num=2
ORCID=

en-aut-name=MatsumotoHirofumi
en-aut-sei=Matsumoto
en-aut-mei=Hirofumi
kn-aut-name=松本宏文
kn-aut-sei=松本
kn-aut-mei=宏文
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Digital geological map
kn-keyword=Digital geological map
en-keyword=DEM
kn-keyword=DEM
en-keyword=JPGIS
kn-keyword=JPGIS
en-keyword=QuantumGIS
kn-keyword=QuantumGIS
en-keyword=R-Language
kn-keyword=R-Language
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=19
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Comparison of large-scale cloud distribution and atmospheric fields around the Akisame (autumn rainfall) front in East Asia among 1993, 1994 and 1995
kn-title=1993，1994，1995年における東アジアの秋雨前線帯付近の雲分布や大気場の総観的特徴の比較
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to examine year-to-year variability of the Akisame (autumn rainfall) frontal zone in East Asia, large-scale cloud distribution and atmospheric fields around the frontal zone were compared among 1993, 1994 and 1995, when their characteristics were rather different among each other. While the Akisame frontal zone extended zonally and the deep convective clouds tended to appear in that frontal zone near the southern coast of the Japan Islands in 1993, the frontal zone extends from southwest to northeast and the large amount of precipitation was brought mainly in the northern Japan. In 1995, although the surface front on the weather maps appeared frequently also around the southern coast of the Japan Islands, the rainfall amount there was not so large. The area with frequent appearance of the deep convective clouds in the Akisame frontal zone was seen only to the east of the Japan Islands. As such, it is noted that the active area of the Akisame frontal zone shows rather large year-to-year variability also in the zonal direction. It is also suggested that such great variability of the Akisame frontal zone in the zonal direction seems to correspond to the
variations of the subtropical high and the ITCZ in the western Pacific region around September.
en-copyright=
kn-copyright=

en-aut-name=FukudaShigeko
en-aut-sei=Fukuda
en-aut-mei=Shigeko
kn-aut-name=福田維子
kn-aut-sei=福田
kn-aut-mei=維子
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学教育学部理科教室

affil-num=2
en-affil=
kn-affil=岡山大学大学院教育学研究科自然教育学系理科教育講座
en-keyword=Akisame (autumn rainfall) front
kn-keyword=Akisame (autumn rainfall) front
en-keyword=STFZ in early autumn
kn-keyword=STFZ in early autumn
en-keyword=year-to-year difference of Akisame front
kn-keyword=year-to-year difference of Akisame front
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=5
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=西南日本の熱変成超苦鉄質岩体中のかんらん石と輝石の組成変化に関する覚書
kn-title=A note on compositional variation of olivine and pyroxene in thermally metamorphosed ultramafic complexes from SW Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=This short article presents some diagrams showing the compositional variations of primary and metamorphic olivine, orthopyroxene and clinopyroxene in peridotites and serpentinites from thermally metamorphosed ultramafic complexes in SW Japan. In contrast to olivine, which shows a gradual change of chemical composition corresponding with metamorphic grade, orthopyroxene and clinopyroxene show clear differences in composition between primary and metamorphic phases. Compared with primary pyroxenes, even though their compositions could be variable depending on original rock composition, metamorphic orthopyroxene and
metamorphic clinopyroxene is clearly deficient in Cr(2)O(3) and CaO, and in Cr(2)O(3) and Al(2)O(3), respectively. These characteristics are useful for the discrimination between the pyroxenes of different origin.
en-copyright=
kn-copyright=

en-aut-name=NozakaToshio
en-aut-sei=Nozaka
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=chemical composition
kn-keyword=chemical composition
en-keyword=olivine
kn-keyword=olivine
en-keyword=orthopyroxene
kn-keyword=orthopyroxene
en-keyword=clinopyroxene
kn-keyword=clinopyroxene
en-keyword=metaperidotite
kn-keyword=metaperidotite
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=17
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2010
dt-pub=20101224
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=裏表紙・目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=投稿規定（約款）, 奥付
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=29
end-page=42
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=岡山県に分布する白亜紀前期羽山層砕屑物質の供給源：砕屑粒の鉱物化学組成とモード組成から導かれる制約
kn-title=Provenance of Early Cretaceous Hayama Formation, Okayama Prefecture, Inner Zone of Southwest Japan: constraints from modal mineralogy and mineral chemistry of derived detrital grains
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Petrographic and phase chemistry studies of detrital grains were carried out on sandstones from the Lower Cretaceous Hayama Formation, Inner Zone of Southwest Japan, to determine their provenance and the tectonic setting during the early Cretaceous. The results of the modal mineralogy suggest that the Hayama Formation has magmatic arc provenance and that deposition of the sediments took place in the back-arc areas with detritus mostly derived from the magmatic arc and rifted continental margins. The chemical compositions of chromian spinel, chlorite and sphene indicate that significant proportions of the detrital grains were derived from mafic and/or ultramafic sources. The source areas are the mafic and ophiolitic rocks in the Sangun-Renge and Akiyoshi terranes and the felsic volcanic rocks probably from either the Akiyoshi terrane or a source not presently exposed in southwest Japan. However, minor amounts of the detritus were derived from the basement rocks; i.e., carbonates and siliciclastic rocks of the Akiyoshi terrane and the metamorphosed mafic rocks of the Chizu terrane.
en-copyright=
kn-copyright=

en-aut-name=AsieduDaniel K.
en-aut-sei=Asiedu
en-aut-mei=Daniel K.
kn-aut-name=アシードダニエル
kn-aut-sei=アシード
kn-aut-mei=ダニエル
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=ShibataTsugio
en-aut-sei=Shibata
en-aut-mei=Tsugio
kn-aut-name=柴田次夫
kn-aut-sei=柴田
kn-aut-mei=次夫
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Science, University of Ghana

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=岡山大学
en-keyword=modal analysis
kn-keyword=modal analysis
en-keyword=sandstone
kn-keyword=sandstone
en-keyword=mineral chemistry
kn-keyword=mineral chemistry
en-keyword=provenance
kn-keyword=provenance
en-keyword=Hayama Formation
kn-keyword=Hayama Formation
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=28
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ガーナ，アシャンティ火山帯南部に分布する古原生代変火山岩類のSr-Nd 同位体組成
kn-title=Sr?Nd isotopic compositions of Paleoproterozoic metavolcanic rocks from the southern Ashanti volcanic belt, Ghana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Neodymium (Nd) and strontium (Sr) isotopic data are presented for Paleoproterozoic metavolcanic rocks in the southern part of the Ashanti volcanic belt of Ghana. The metavolcanic rocks are predominantly basalts/basaltic andesites and andesites with minor dacites. Two types of basalts/basaltic andesites (B/A), Type I and Type II, have been identified. The Type I B/A are stratigraphically overlain by the Type II B/A, followed by the andesites and the dacites. The analyzed volcanic rocks commonly have low initial (87)Sr/(86)Sr ratios consistent with previous studies on Paleoproterozoic rocks from the West African craton. The LREE-depleted, tholeiitic Type I B/A exhibit back-arc basin geochemical signatures and show high positive epsilon Nd (i.e., ε(Nd) (2.1 Ga) = +3.89 to +7.21), which suggest a long term depleted source and also indicate that they were produced in an entirely oceanic environment devoid of influence of continental crust. The isotope signatures are thus consistent with the previously published trace element data of the Type I basalts/basaltic andesites in suggesting that their parent magma was generated from a depleted mantle. The Type I B/A have Nd model ages (T(DM2)) of 1.83?2.09 Ga similar to their formation ages, suggesting that they were juvenile at their time of formation. The andesites and the Type II B/A andesites show LREE-enriched patterns and exhibit characteristics of subduction zone-related magmas, and show initial ε(Nd) (2.1Ga) values of ?1.15 to + 1.35 and Nd model ages (T(DM2)) of 2.32?2.58 Ga. The LREE-enriched dacitic porphyry also exhibits characteristics of subduction zone-related magmas, and have initial ε(Nd) (2.1Ga) value of ?2.24 and Nd model ages (T(DM2)) of 2.64 Ga. The Nd isotopic data confirms the juvenile character of the Birimian crust, but also suggests some contributions of a pre-Birimian crustal material (or Archean?) in the genesis of some of the metavolcanic rocks. Our isotopic result is consistent with the island arc complex model which views Paleoproteozoic terranes of West Africa in the context of subduction?accretion processes.
en-copyright=
kn-copyright=

en-aut-name=DampareSamuel
en-aut-sei=Dampare
en-aut-mei=Samuel
kn-aut-name=ダムパリサムエル
kn-aut-sei=ダムパリ
kn-aut-mei=サムエル
aut-affil-num=1
ORCID=

en-aut-name=ShibataTsugio
en-aut-sei=Shibata
en-aut-mei=Tsugio
kn-aut-name=柴田次夫
kn-aut-sei=柴田
kn-aut-mei=次夫
aut-affil-num=2
ORCID=

en-aut-name=AsieduDaniel
en-aut-sei=Asiedu
en-aut-mei=Daniel
kn-aut-name=アシードダニエル
kn-aut-sei=アシード
kn-aut-mei=ダニエル
aut-affil-num=3
ORCID=

en-aut-name=OkanoOsamu
en-aut-sei=Okano
en-aut-mei=Osamu
kn-aut-name=岡野修
kn-aut-sei=岡野
kn-aut-mei=修
aut-affil-num=4
ORCID=

en-aut-name=ManuJohnson
en-aut-sei=Manu
en-aut-mei=Johnson
kn-aut-name=マーヌジョンソン
kn-aut-sei=マーヌ
kn-aut-mei=ジョンソン
aut-affil-num=5
ORCID=

en-aut-name=SakyiPatrick
en-aut-sei=Sakyi
en-aut-mei=Patrick
kn-aut-name=サチパトリック
kn-aut-sei=サチ
kn-aut-mei=パトリック
aut-affil-num=6
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=Department of Earth Science, University of Ghana

affil-num=4
en-affil=
kn-affil=岡山大学

affil-num=5
en-affil=
kn-affil=Department of Earth Science, University of Ghana

affil-num=6
en-affil=
kn-affil=Department of Earth Science, University of Ghana
en-keyword=Sr?Nd isotopes
kn-keyword=Sr?Nd isotopes
en-keyword=petrogenesis
kn-keyword=petrogenesis
en-keyword=tectonic setting
kn-keyword=tectonic setting
en-keyword=Birimian metavolcanics
kn-keyword=Birimian metavolcanics
en-keyword=Ashanti volcanic belt
kn-keyword=Ashanti volcanic belt
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=7
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri (1799-1863)
kn-title=日本最初の用語「地質学」の成立: 箕作阮甫（1799-1863）の貢献
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The first Japanese word "chishitsu-gaku" for the "geology" was proposed by Genpo Mitsukuri, a scientific contributor in the Tokugawa regime in the 19th century, who was born in 1799 in Tsuyama in Western Honshu, Japan and had worked for scientific activities of the Tokugawa government from 1839 to 1863. His major works for the first making of the "chishitsu-gaku" for the "geology" have been presented in this paper, also showing his contribution to Japanese sciences.
en-copyright=
kn-copyright=

en-aut-name=OkadaHakuyu
en-aut-sei=Okada
en-aut-mei=Hakuyu
kn-aut-name=岡田博有
kn-aut-sei=岡田
kn-aut-mei=博有
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=

affil-num=2
en-affil=
kn-affil=岡山大学
en-keyword=Genpo Mitsukuri
kn-keyword=Genpo Mitsukuri
en-keyword="chishitsu-gaku"
kn-keyword="chishitsu-gaku"
en-keyword=19th century
kn-keyword=19th century
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Title Page
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=16
cd-vols=
no-issue=1
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20091225
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=表紙・英文目次
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-sei=Department of Earth Sciences, Faculty of Science, Okayama University
en-aut-mei=
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=79
end-page=86
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20090331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=中国寧夏地域における日照時間から日積算日射量の推定
kn-title=Estimation of daily solar radiation from sunshine durationin Ningxia region, China
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=For the estimation of daily solar radiation from sunshine duration, observation data of Yinchuan station in Ningxia, China was used. Using a linear relationship between solar radiation and extraterrestrial radiation including relative sunshine duration and daylength, we obtained local coefficients s a =0.18, s b =0.62 from past five years data(1981-1985). Using the same method, coefficients for Guyuan region were confirmed too as a representative of south part of Ningxia province. Applying the local
coefficients and calculation formula of solar radiation, we validated daily solar radiation of two years(1986-1987) of Yinchuan station and four years(1991-1994) of Guyuan station. The results showed high correlation coefficients of R2=0.94 in Yinchuan and R2=0.85 in Guyuan. Error analysis was applied using mean bias error(MBE), mean absolute bias error(MABE), root mean square error(RMSE)，mean absolute percentage error(MAPE) on solar radiation of Yinchuan(1973-2006) and Guyuan(1986-2006) stations.
Results showed that mean absolute bias error(MABE) was less than 13% and 17% in Yinchuan station and Guyuan station
respectively. Then we have applied this method to the estimation of daily solar radiation at ‘Yongning’ station(near Yinchan) with the sunshine duration data at ‘Yongning’. The estimated values were compared with observed daily solar radiation at Yinchuan as past twelve
years data(1989-2000). The results showed good linear relationship with high correlation coefficient of R2= 0.88.
en-copyright=
kn-copyright=

en-aut-name=YangQin
en-aut-sei=Yang
en-aut-mei=Qin
kn-aut-name=楊勤
kn-aut-sei=楊
kn-aut-mei=勤
aut-affil-num=1
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Weather Station of Meteorological Bureau of Ningxia

affil-num=2
en-affil=
kn-affil=岡山大学
en-keyword=Daily solar radiation
kn-keyword=Daily solar radiation
en-keyword=Extraterrestrial radiation
kn-keyword=Extraterrestrial radiation
en-keyword=Relative sunshine duration
kn-keyword=Relative sunshine duration
en-keyword=Local coefficient
kn-keyword=Local coefficient
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=67
end-page=77
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20090331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Climatological study on large-scale situation associated with the cool summer around the Northeastern Japan in 1990s (in comparison with that in 1970s)
kn-title=1990年代における東北日本の冷夏に関わる大規模場について（1970年代との比較）
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=It is pointed out by the previous studies that the Baiu front tends to stagnate around the Japan Islands even in
midsummer season in 1990s, although the global warming is going on. The present study examined the climatological
features of the appearance of daily fronts on the surface weather maps and the large-scale factors associated with the
activity of the polar frontal zone to the north of the Baiu frontal zone based on the observational data in the summer of 1971-2000. It was found that the midsummer when the Baiu front tends to stagnate around the Japan Islands appeared
rather frequently in 1970s as in 1990s. However, the baroclinicity around the Eurasian polar frontal zone was stronger in 1970s than in 1990s. Thus while the fronts around the Japan Islands in midsummer were greatly due to the southward invasion of cold front associated with the disturbances on the polar frontal zone in 1970s, the Okhotsk High tends to stagnates to the northeast of the fronts around the Japan Islands in 1990s.
en-copyright=
kn-copyright=

en-aut-name=SenooYukari
en-aut-sei=Senoo
en-aut-mei=Yukari
kn-aut-name=妹尾ゆかり
kn-aut-sei=妹尾
kn-aut-mei=ゆかり
aut-affil-num=1
ORCID=

en-aut-name=KatoKuranoshin
en-aut-sei=Kato
en-aut-mei=Kuranoshin
kn-aut-name=加藤内藏進
kn-aut-sei=加藤
kn-aut-mei=内藏進
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学
en-keyword=Abnormal weather in summer
kn-keyword=Abnormal weather in summer
en-keyword=Climate system in East Asia
kn-keyword=Climate system in East Asia
en-keyword=Cool summer
kn-keyword=Cool summer
en-keyword=Climate variation
kn-keyword=Climate variation
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=65
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20090331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Morphology and Anatomy of Holocene Raised Coral Reef Terraces in Kodakara Island, Tokara Islands, northwestern Pacific, Japan
kn-title=吐喝喇列島・小宝島の完新世隆起サンゴ礁段丘地形と堆積構造
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Well-developed Holocene raised coral reef terraces are formed in Kodakara Island (29°13'N 129°19'E), Tokara
Islands, northwestern Pacific, Japan. Detailed morphology and sedimentary structure of the raised reef terraces are
observed by field survey through the terraces surface and core drillings. The Holocene raised reef in Kodakara
Island are divided into three terraces (TI to III). The surface geo-biological facies and paleo-morphology such as
spur and groove system or reef mounds are well preserved on these terraces. The raised coral reefs in Kodakara
Island consist of reef flats and reef slopes. No lagoon formed in these terraces. On the raised reef surface, we
observed five distinct reefal facies (S-f1-5). The platy and encrusting Acropora facies is the major constituent of
the terrace surfaces. We obtained seven drilling cores (B1 to 7) from Terraces I and II along a transect in the
southern part of the island. The thickness of the Holocene reef is more than 14m which is approximately
equivalent to the Holocene reefs in the middle and southern Ryukyu Islands. Sedimentary structure consists of
seven facies (C-f1-7: five reefal and two non-reefal facies). The drilling cores indicating the shallowing sequence at the upward of the cores which characterized by platy-encrusting Acropora facies overlying massive Porites,
favid and/or encrusting-foliaceous coral facies. It may indicate the environmental change such as wave-energy
gradients and turbidity during the reef development.
en-copyright=
kn-copyright=

en-aut-name=HamanakaNozomu
en-aut-sei=Hamanaka
en-aut-mei=Nozomu
kn-aut-name=濱中望
kn-aut-sei=濱中
kn-aut-mei=望
aut-affil-num=1
ORCID=

en-aut-name=KanHironobu
en-aut-sei=Kan
en-aut-mei=Hironobu
kn-aut-name=菅浩伸
kn-aut-sei=菅
kn-aut-mei=浩伸
aut-affil-num=2
ORCID=

en-aut-name=NakashimaYosuke
en-aut-sei=Nakashima
en-aut-mei=Yosuke
kn-aut-name=中島洋典
kn-aut-sei=中島
kn-aut-mei=洋典
aut-affil-num=3
ORCID=

en-aut-name=HoriNobuyuki
en-aut-sei=Hori
en-aut-mei=Nobuyuki
kn-aut-name=堀信行
kn-aut-sei=堀
kn-aut-mei=信行
aut-affil-num=4
ORCID=

en-aut-name=OkamotoTakehiro
en-aut-sei=Okamoto
en-aut-mei=Takehiro
kn-aut-name=岡本健裕
kn-aut-sei=岡本
kn-aut-mei=健裕
aut-affil-num=5
ORCID=

en-aut-name=OhashiTomoya
en-aut-sei=Ohashi
en-aut-mei=Tomoya
kn-aut-name=大橋倫也
kn-aut-sei=大橋
kn-aut-mei=倫也
aut-affil-num=6
ORCID=

en-aut-name=AdachiHiroshi
en-aut-sei=Adachi
en-aut-mei=Hiroshi
kn-aut-name=安達寛
kn-aut-sei=安達
kn-aut-mei=寛
aut-affil-num=7
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学

affil-num=2
en-affil=
kn-affil=岡山大学

affil-num=3
en-affil=
kn-affil=有明工業高等専門学校

affil-num=4
en-affil=
kn-affil=奈良大学

affil-num=5
en-affil=
kn-affil=岡山大学

affil-num=6
en-affil=
kn-affil=岡山大学

affil-num=7
en-affil=
kn-affil=(株)ジオアクト
en-keyword=Holocene
kn-keyword=Holocene
en-keyword=coral reef terrace
kn-keyword=coral reef terrace
en-keyword=drilling
kn-keyword=drilling
en-keyword=sedimentary structure
kn-keyword=sedimentary structure
en-keyword=Tokara Islands
kn-keyword=Tokara Islands
en-keyword=northwestern Pacific
kn-keyword=northwestern Pacific
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20090331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Microscopic observations of the recent soils: a step for understanding the paleosols
kn-title=現世土壌の岩石学的記載　：　古土壌研究への応用の一例
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The microscopic observations of the recent soil horizons were conducted in Okayama, Japan (moderate climate). The several soil horizons, including two surface (epipedon) and three subsurface horizons, were recognized in the forest, poorly vegetated hill, and riverside around the Okayama University. The umbric epipedon can be segregated from the organic-rich subsurface horizons by the scattered organic materials in thin sections. The ochrich epipedon shows the sandy matrix without any cements and the illuviation of
clay minerals. The subsurface horizons identified in the study area are as follows: albic, argillic, and cambic horizons. Each subsurface
horizon shows the specific structures in thin sections. The albic horizon is characterized by the absence of the illuviation. The argillic horizon definitely shows the clayey matrix and the illuviation of clay minerals. The primary structures may be retained in the cambic
horizon.
The microscopic examination of the Miocene paleosols from the Ukan-cho, Okayama, was attempted. By comparing the recent soils, the cambic horizon and spodic horizon, which is characterized by the concentration of sesquioxides, are identified in the paleosols. This attempt suggests that the microscopic observations of the recent soils is a useful guide to understanding the paleosols
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=福地亮
kn-aut-sei=福地
kn-aut-mei=亮
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=阪神コンサルタンツ

affil-num=2
en-affil=
kn-affil=岡山大学
en-keyword=soil
kn-keyword=soil
en-keyword=paleosol
kn-keyword=paleosol
en-keyword=soil horizon
kn-keyword=soil horizon
en-keyword=soil structure
kn-keyword=soil structure
en-keyword=microscopic observation
kn-keyword=microscopic observation
END

start-ver=1.4
cd-journal=joma
no-vol=15
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=8
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2009
dt-pub=20090331
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Permian and Triassic molluscan fossils from the Maizuru Zone,Okayama City, Southwest Japan
kn-title=岡山市北部の舞鶴帯から産出した二枚貝・巻貝化石
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Permian and Triassic molluscan fossils are found from Mitsu-area, Okayama City, Southwest Japan. Permian
bivalve and gastropod fossils are collected from mudstones of the Upper Formation of the Maizuru Group. 4
species of bivalves (Nuculopsis? sp. ind., Leptodesma sp. ind., Streblopteria cf. eichwaldi, Posidonia sp. ind.)
and 5 species of gastropods (Worthenia cf. corrugata, Callitomaria n. sp. cf. stanislavi, Apachella n. sp.
ind., ??Eunemopsis like trochid, ??Yunnania sp.) are identified. Lower Triassic bivalve fossils are collected from sandstones of the Oono Formation. Neoschizodus cf. laevigatus and Bakevellia (Maizuria) kambei are identified.
en-copyright=
kn-copyright=

en-aut-name=NakazawaKeiji
en-aut-sei=Nakazawa
en-aut-mei=Keiji
kn-aut-name=中澤圭二
kn-aut-sei=中澤
kn-aut-mei=圭二
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Roger LymanBatten
kn-aut-sei=Roger Lyman
kn-aut-mei=Batten
aut-affil-num=2
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

en-aut-name=UwadaHideto
en-aut-sei=Uwada
en-aut-mei=Hideto
kn-aut-name=宇和田英人
kn-aut-sei=宇和田
kn-aut-mei=英人
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=京都大学名誉教授

affil-num=2
en-affil=
kn-affil=元アメリカ自然史博物館

affil-num=3
en-affil=
kn-affil=岡山大学

affil-num=4
en-affil=
kn-affil=インターナショナルペイント株式会社
en-keyword=Permian
kn-keyword=Permian
en-keyword=Triassic
kn-keyword=Triassic
en-keyword=bivalve and gastropod fossils
kn-keyword=bivalve and gastropod fossils
en-keyword=the Maizuru Zone
kn-keyword=the Maizuru Zone
en-keyword=Mitsu area
kn-keyword=Mitsu area
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=49
end-page=52
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=LISTHKL : List h, k, l, Fo and σFo tables
kn-title=単結晶強度データーリスト作成プログラムLISTHKL
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=LISTHKL, a Fortran 77 program listing up the data for deposit is submission to Acta Crystallo-graphica has been written. The program requires a computer set with a printer utilizung the LIPS3 page description language.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地学科
en-keyword=LISTHKL
kn-keyword=LISTHKL
en-keyword=Acta Crystallographica
kn-keyword=Acta Crystallographica
en-keyword=reflection data
kn-keyword=reflection data
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=37
end-page=48
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=CALCOMP to LIPS3 convert library
kn-title=CALCOMPからLIPS3への変換ライブラリの作成
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=CALLIP, a CALCOMP compatible Fortran 77 library using the Canon LIPS3 page description lan-guage, has been written. As a result, the graphic output of programs with CALCOMP plotting routines used for crystal structure analyses, such as ORTEP2, Rietveld analyses and others can be used under the printer equipped with LIPS3 PDL. The details of the library was given with some graphic examples.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地学科
en-keyword=CALLIP
kn-keyword=CALLIP
en-keyword=CALCOMP
kn-keyword=CALCOMP
en-keyword=LIPS3
kn-keyword=LIPS3
en-keyword=Fortran 77
kn-keyword=Fortran 77
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=27
end-page=36
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Determination of Rb-Sr age for separated chondrules from the Allegan chondrite
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Rb-Sr isotopic study as well as petrologic investigations have been done on sixteen individul chondrule samples separated from the Allegan (H5) chondrite. The Rb-Sr chondrule isochron does not define a very precise age (4.42±0.17 Ga) and 87Sr/86Sr initial ratio (0.6997±0.0014) due to the very small variation in Rb/Sr ratio for the chondrules, whereas the model ages give a much more speciffic value (4.42±0.02 Ga). These ages may probably be indicative of the time of primary process (es) (e.g. chondrule formation) rather than secondary (metamorphic reheating) or tertiary (shock heating) processes in and/or on the H-chodrite parent body (or bodies). Chemical compositions of oliveines (Fa=17.5mol%, mean deviation (MD)=1.3%) and orthopyoxenes (Fs=15.4mol%, MD=3.2%) are moderately homogenized among the chondrules, while certains chemically uneguilibrated features are also distinctly preserved in this chondrite. Homogeneity of the mineral compositions, therefore, could not have been caused by thermal metamorphism but were probably inherited from processes prior to aggregation of the components. The overall implications of the chondrule isochron and model ages in relation to the petrological features and in comparison with Rb-Sr data of other chondrites of different chemical groups and petrologic types are discussed.
en-copyright=
kn-copyright=

en-aut-name=OkanoOsamu
en-aut-sei=Okano
en-aut-mei=Osamu
kn-aut-name=岡野修
kn-aut-sei=岡野
kn-aut-mei=修
aut-affil-num=1
ORCID=

en-aut-name=NishiyaNanayo
en-aut-sei=Nishiya
en-aut-mei=Nanayo
kn-aut-name=西谷七代
kn-aut-sei=西谷
kn-aut-mei=七代
aut-affil-num=2
ORCID=

en-aut-name=KagamiHiroo
en-aut-sei=Kagami
en-aut-mei=Hiroo
kn-aut-name=加々美寛雄
kn-aut-sei=加々美
kn-aut-mei=寛雄
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=3
en-affil=
kn-affil=Institute for study of Earth's Interior, Okayama University
en-keyword=chondrule
kn-keyword=chondrule
en-keyword=age
kn-keyword=age
en-keyword=Rb-Sr isochron
kn-keyword=Rb-Sr isochron
en-keyword=Allegan
kn-keyword=Allegan
en-keyword=H- chondrite
kn-keyword=H- chondrite
en-keyword=meteorite
kn-keyword=meteorite
en-keyword=metamorphism
kn-keyword=metamorphism
en-keyword=olivine
kn-keyword=olivine
en-keyword=pyroxene
kn-keyword=pyroxene
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ScSp Phase observed on the Coast of the Seto Inland Sea
kn-title=瀬戸内海沿岸で観測されたScSp相について
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Observation of ScSp phase, P wave converted from ScS phase, has been made at a seismological observatory (SBK) located on the coast of the Seto Inland Sea, southwest Japan. The ScSp phases were found on the seismograms of earthqukes with long epicentral distances, but not observed for those with short epicentral distances. Such dependence of appearance of the ScSp phase on epientral distance is interpreted as being due to the Philippine Sea plate horizontally lying beneath the Shikoku and Chugoku districts.
en-copyright=
kn-copyright=

en-aut-name=NishiMasaki
en-aut-sei=Nishi
en-aut-mei=Masaki
kn-aut-name=西政樹
kn-aut-sei=西
kn-aut-mei=政樹
aut-affil-num=1
ORCID=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Tottori Meteorological Obseruvatory

affil-num=2
en-affil=
kn-affil=Department of Earth Sicences, Okayama University
en-keyword=ScS Phase
kn-keyword=ScS Phase
en-keyword=ScSp Phase
kn-keyword=ScSp Phase
en-keyword=Philippine Sea Plate
kn-keyword=Philippine Sea Plate
en-keyword=Southwest Japan
kn-keyword=Southwest Japan
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Gradational development of slaty cleavage to schistosity -an example from the Iberian Pyrite Belt, Spain-
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Iberian Pyrite Belt is an Upper Paleozoic succession which has been divided into the Phyllite-Quartzite Group, the Volcanic-Sliceous Complex and the Culm Group in ascending order from base to the top. The contacts among them are conformable. These Groups are tightly folded and metamorphosed un-der low-grade conditions during Hercynian times. The first stage folds of the Volcanic-Siliceous Complex and the Culm Group are associate with slaty cleavages (S1), while the Phyllite-Quartzite Group is asso-ciate with schistosities (S1). Fold analysis using cleavages and minoe folds has been utilized in the analysis of the stratigraphy. This led to systematic horizontal collection of specimens (pelitic rocks). S1 texture is defined by paralled alignment of secondary platy minerals which tend to grow larger and together, forming zonal domains toward the Phyllite-Quartzite Group. The clay matrices change to recrystallized quartz toward the Phyllite Quartzite Group. Textural modifications are evidenced by gradational changes from slaty cleavages to schistosities. This shows that recrystallization is the important deformation mecha-nism responsible for S1 development. It also reflects that the deformation was contemporaneous with metamorphism.
en-copyright=
kn-copyright=

en-aut-name=Suzukishigeyuki
en-aut-sei=Suzuki
en-aut-mei=shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sicences, Faculty of Science Okayama University
en-keyword=Slaty cleavage
kn-keyword=Slaty cleavage
en-keyword=Schistosity
kn-keyword=Schistosity
en-keyword=Recrystallization
kn-keyword=Recrystallization
END

start-ver=1.4
cd-journal=joma
no-vol=1
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=8
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1994
dt-pub=19940920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Petrography of primary peridotites from the Ohsa-yama area, Okayama Prefecture
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Ultramafic rocks exposed around Mt. Ohsa(= Ohsa-yama), Okayama prefecture, designated as "Ohsa-yama ultramafic body" all together, are one of the Alpine-type peridotites in the Sangun metamorphic belt. They are intensely serpentinized and locally suffered contact metamorphism by younger granitic intrusions. In a por-tion of the ohsa-yama body where it has been affected by the contact metamorphism, the constituent minerals, texture and structure of primary ultramafic rocks have been locally preserved. Petrographic studies revead that the primary ultramafic rocks of the ohsa-yama body consist domimantly of dunite and harzburgite possessing no obvious layering, and their constituent minerals are similar in composition to those of the Tari-Misaka and Ashidachi ultramafic bodies. These features indicate that unlike the Ochiai-Hokubo body, the Ohsa-yama ultra-mafic body belongs to the "massive group" of the Arai's (1980) classification.
en-copyright=
kn-copyright=

en-aut-name=NozakaToshio
en-aut-sei=Nozaka
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=1
ORCID=

en-aut-name=ShibataTsugio
en-aut-sei=Shibata
en-aut-mei=Tsugio
kn-aut-name=柴田次夫
kn-aut-sei=柴田
kn-aut-mei=次夫
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sicences, Faculty of Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sicences, Faculty of Science Okayama University
en-keyword=petrography
kn-keyword=petrography
en-keyword=dunite
kn-keyword=dunite
en-keyword=harzburgite
kn-keyword=harzburgite
en-keyword=massive ultramafic body
kn-keyword=massive ultramafic body
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=103
end-page=108
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=System for monitoring the vacuum of X-ray generators (Available use of 8 bit personal computer) 　
kn-title=X線発生装置真空度監視システムの試作 （8ビットパソコンの有効利用)
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An used 8 bit personal computer is utilized for an instrument for continuous monitoring of the vacuum valuses of X-ray genrators. The interface board, programmable peripheral interfacial LSI, 8255A and some IC's for address decoding are assembled into a completed unti. The concept of the construction of this interface unti is profitable for the inexpensive layout of experimental laboratories.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=X-ray generator
kn-keyword=X-ray generator
en-keyword=vacuum
kn-keyword=vacuum
en-keyword=monitoring
kn-keyword=monitoring
en-keyword=personal computer
kn-keyword=personal computer
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=91
end-page=102
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Rb-Sr age of K-rich LL-chondrite Yamato-74442
kn-title=Yamato-74442 LLコンドライトにおけるアルカリ分別年代
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Yamato-74442, a brecciated LL-group chondrite, consists of fragments with igeous texture, chondrules, mineral fragments, and host. The fragments involve K-rich fragments as well as normal ones. Typically, both fragments consist mainly of euhedral porphyritic olivines and a few orthopyroxenes in a glassy grundmass. EPMA analyses for these fragments indicate that olivines and orthoptroxenes have a range of Fe/(Fe+Mg) ratio of 27.19〜31.33 and 20.10〜26.91 mol%, respectively. There is no significant difference in these rations between K-rich (Na2O/K2O<1) and normal framents. The K2O contents of groundmass for K-rich fragments range from 0.51 to 4.89 wt% and that of the normal fragments is 0.38〜090 wt%. K2O contents of groundmass vary from fragment to fragment but are rather homegeneous in a single fragment.
 Rb-Sr isotopic determination on eighteen K-rich fragments (1.5 to 9.5mg in weight) gave an internal isochron age of 4.514±0.022 (2σ) Ga (λ87Rb=1.42×10-11y-1) and initial 87Sr/86Sr ratio of 0.7016±0.0024. This age is somewhat old compared with a whole rock isochron age of LL chondrites (4.493±0.18 Ga; Minster and Allegre, 1981). From a comoarison of the present result with others so far reported, it is inferred that the alkali differentiation as observed in Yamato-74442 probably occurred prior to or during a process of accumulation from LL chondrite parent material in the early solar nebula.　
en-copyright=
kn-copyright=

en-aut-name=NishiyaNanayo
en-aut-sei=Nishiya
en-aut-mei=Nanayo
kn-aut-name=西谷七代
kn-aut-sei=西谷
kn-aut-mei=七代
aut-affil-num=1
ORCID=

en-aut-name=OkanoOsamu
en-aut-sei=Okano
en-aut-mei=Osamu
kn-aut-name=岡野修
kn-aut-sei=岡野
kn-aut-mei=修
aut-affil-num=2
ORCID=

en-aut-name=KagamiHiroo
en-aut-sei=Kagami
en-aut-mei=Hiroo
kn-aut-name=加々美寛雄
kn-aut-sei=加々美
kn-aut-mei=寛雄
aut-affil-num=3
ORCID=

en-aut-name=NakamuraNoboru
en-aut-sei=Nakamura
en-aut-mei=Noboru
kn-aut-name=中村昇
kn-aut-sei=中村
kn-aut-mei=昇
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学自然科学研究科

affil-num=3
en-affil=
kn-affil=岡山大学地球内部研究センター

affil-num=4
en-affil=
kn-affil=神戸大学理学部地球科学科
en-keyword=LL-chondrite
kn-keyword=LL-chondrite
en-keyword=Rb-Sr age
kn-keyword=Rb-Sr age
en-keyword=Sr isotope
kn-keyword=Sr isotope
en-keyword=K-rich fragment
kn-keyword=K-rich fragment
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=81
end-page=90
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A geochemical study of the Ashanti gold deposit at Obuasi, Ghana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Ashanti gold deposit at Obuasi occurs in the Early Proterozoic Birimian formation. The orebodies consist of gold-sulphides disseminated in metasediments and metavolcanics, and gold-bearing quartz veins. Gold occurs mainly as native gold normally with arsenopyrite, pyrrhotite and pyrite in the metasediments and metavolcanics. In the quartz veins, however, it is associated with tetrahedrite and sphalerite. Microprobe analysis of gold grains gave an Ag content of about 8 wt.%.
 Textural relationships among the various mineral associations suggest that pyrrhotite, pyrite, arse-nopyrite and possibly gold may have been formed esrlier in the paragenetic sequence. The precipitation of some amounts of gold may have occurred during the later stages of the mineralisation sequence.
 Average arsenopyrite composition determined from electron microprobe study is: Fe: 33.6 ± 0.5 at.%, As: 29.3 ± 1.2 at.%, S: 37.1 ± 1.1 at.%, This suggests an average temperature of formation of less than 300℃ for the sulphides and possibly the gold assuming equilibrium was attained between pyrite, pyrrhotite and arsenpopyrite. The δ34S values for sulphide mineral separates are in the range between -4.1 and -10.8%. The values were, however, constrained between -4.1 and -7.0%. The narrow range and the depleted nature of the δ34S values may suggest a sedimentary sourcc of sulphur which may have undergone high temperature homegenisation before deposition. Sulphides from quartz vein samples had the most depleted δ34S values. This may indicate a different mineralisation history of the sulohides in the quartz veins from those dissemi-nated in metasediments and metavolcanics.
en-copyright=
kn-copyright=

en-aut-name=OsaeShiloh
en-aut-sei=Osae
en-aut-mei=Shiloh
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KaseKatsuo
en-aut-sei=Kase
en-aut-mei=Katsuo
kn-aut-name=加瀬克雄
kn-aut-sei=加瀬
kn-aut-mei=克雄
aut-affil-num=2
ORCID=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University
en-keyword=Birimian
kn-keyword=Birimian
en-keyword=Ashanti
kn-keyword=Ashanti
en-keyword=gold
kn-keyword=gold
en-keyword=arsenopyrite
kn-keyword=arsenopyrite
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=71
end-page=80
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Occurrence and composition of manganese oxide minerals from the Nauta manganese deposit, Western Ghana
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=X-ray diffraction, ore microscopy, and electron microprobe studies have been done on ore samples obtained from the mine site at Nsuta, Ghana. Manganese ore minerals identified include nsutite, cryptomelane, pyrolusite, and lithiophorite. Except for pyrolusite, all these minerals are poorly crystalline. Chemical compositions of the minerals indicate little contamination by other elements. Quartz, muscovite, and clay minerals feature prominently as gangue in most samples. Textures are varied, and modes of occurrence are prinicipally by replacements, cavity or fracture fills, leaching and precipitaion. Mineral associations seem rather complex, as a result of which definitive paragenetic relations could not be established.
 Supergene formation of the manganese oxide ore is shown by the abundance of manganese minerals in solution channels such as fractures and cavities within silicate gangue. Much of the ore, howver, appears to have been enriched by leaching of gangue minerals and the later addution of manganese.
en-copyright=
kn-copyright=

en-aut-name=Frank kNyame
en-aut-sei=Frank k
en-aut-mei=Nyame
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=KaseKatsuo
en-aut-sei=Kase
en-aut-mei=Katsuo
kn-aut-name=加瀬克雄
kn-aut-sei=加瀬
kn-aut-mei=克雄
aut-affil-num=2
ORCID=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okyamaa University
en-keyword=Nsuta
kn-keyword=Nsuta
en-keyword=nsutite
kn-keyword=nsutite
en-keyword=cryptomelane
kn-keyword=cryptomelane
en-keyword=pyrolusite
kn-keyword=pyrolusite
en-keyword=lithiophorite
kn-keyword=lithiophorite
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=63
end-page=70
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=solubility and polymerization of silica in salt solutions
kn-title=塩溶液中の溶解性シリカの平衡濃度と重合速度について
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The solubility of amorphous silica was determined in sodium chloride,potassium chloride, magnesium chloride and calium chloride solutions from 0.01 to 1moI/I and at temperatures of 21,36,50 and 65℃. The Setchenow equation was applied to the results, which enabled us to estimate the equilibrium concentration of "dissoloved silica" (molybdate-reactive silica) in the studied chloride solutions.
 Next, the effects of pH, supersaturation of silica and salt concentration on the polymerization rate of silica were investigated at 35℃. In the pH range from 6.4 to 7.9, the maximum polymerization rate increased with increasing pH. The maxima occurred when dissoloved silica decreased by 25% of the initial supersaturation concentrations irrespective of pH. The polymerization rate was found to be dependent on the supersaturation degree rather than on the supersaturation concentration of silica. The results in magnesium chloride solutions suggest that magnesium ions may act as nuclei in the formation of colloidal silica in geothermal waters.
en-copyright=
kn-copyright=

en-aut-name=SugitaHajime
en-aut-sei=Sugita
en-aut-mei=Hajime
kn-aut-name=杉田創
kn-aut-sei=杉田
kn-aut-mei=創
aut-affil-num=1
ORCID=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Chemical Engineering, Nagoya University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okyamaa University
en-keyword=amorphous silica
kn-keyword=amorphous silica
en-keyword=solubility
kn-keyword=solubility
en-keyword=polymerization
kn-keyword=polymerization
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=55
end-page=62
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Water-soluble materials on volcanic ash from the 1990-94 eruption of the Unzenn volcano
kn-title=雲仙火山1990〜94年の火山活動に伴う火山灰水溶性物質
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Water-soluble materials on volcanic ash from the Unzen volcano collected from February, 1991 to July, 1994 were chemically analyzed. They were similar in chemical characteristics to those obtained from other volcanoes. Chemical compositions varied even for materials from the same pyroclastic flow. C1 contens increased with increasing residence time of volcanic ash in air, but SO4 contents were almost fixed. It therefore seems that the reaction of volcanic ash with HC1 proceeds even at low temperatures, whereas the reaction with SO2 takes place only at high temperatutes.
en-copyright=
kn-copyright=

en-aut-name=AkagiSeishi
en-aut-sei=Akagi
en-aut-mei=Seishi
kn-aut-name=赤木誠司
kn-aut-sei=赤木
kn-aut-mei=誠司
aut-affil-num=1
ORCID=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=volcanic ash
kn-keyword=volcanic ash
en-keyword=volcanic gas
kn-keyword=volcanic gas
en-keyword=Unzen volcano
kn-keyword=Unzen volcano
en-keyword=C1/SO4 ratio
kn-keyword=C1/SO4 ratio
en-keyword=water-soluble
kn-keyword=water-soluble
en-keyword=material
kn-keyword=material
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=54
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A suggestion on the origin of biotite gneisses of the Ryoke belt in the Seto Inland Sea (Seto-nai-kai) region : Some biotite gneisses were derived from a different geologic unit to the Kuga froup
kn-title=瀬戸内海地域領家帯の黒雲母片麻岩の起源に関する1つの提案 : 玖珂層群とは別の地質単元から由来した黒雲母片麻岩がある
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Kuga group is a Jurassic accretional complex that has been believed by many workers to be a unique geologic unit transformed into the Ryoke gneisses in the Seto Inland Sea region. I will now suggest the presence of a different geologic unti in addition to the Kuga group. Most of the biotite gneisses found at the Iwakuni-Yanai area are probably derived from rocks of the Kuga group, but the rest biotite gneisses that occur in the Murotu Peninsula, the  Yashiro-jima, the E-no-shima, and the other several islands in the Seto Inland Sea region were derived from a un-known and a different geologic unit to the Kuga froup.
 Some pieces of evidence proving the distinct origin of the latter biotite gneisses are: (1) the biotite gneisses commonly occur as small to large fusiform bodies generally enclosed in the older Ryoke granite or as large masses contacting only with the older Ryoke granite; (2) tight folds with parallel axial surfaces are very common, and dupli-cated fold systems are found in many localities; (3) microtextures of some minerals, e.g. garnet and K-feldspar, often suggest a plural metamorphic history of the gneisses (Nuraki et al., 1982a; Miyashita % Komatsu,1993); and (4) the sillimanite zone (Ikeda,1991 : Okudaira et al.,1993) is only a metamorphic zone that can be found. The sillimanite zone is interpreted to be excluded from the progressive metamorphism in the Iwakauni-Yanai area (Wallits et al.,1992).
 Biotite gneisses of the sillimanite zone are found here and there and show no zonal arrangement of distribu-tion in the Ryoke belt. The estimated metamorphic temperature and pressures for the biotite gneisses of the silliman-ite zone are 530-710℃ and 2-4kb respectively, both of which are lower than of the peak metamorphism, estimated as 550-820℃ and 5-6kb, at the Iwakuni- Yanai area.
en-copyright=
kn-copyright=

en-aut-name=NurekiTerukazu
en-aut-sei=Nureki
en-aut-mei=Terukazu
kn-aut-name=濡木輝一
kn-aut-sei=濡木
kn-aut-mei=輝一
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=元岡山大学理学部地学教室
en-keyword=Kuga group
kn-keyword=Kuga group
en-keyword=Ryoke belt
kn-keyword=Ryoke belt
en-keyword=biotie gneisses
kn-keyword=biotie gneisses
en-keyword=Sillimanite Zone
kn-keyword=Sillimanite Zone
en-keyword=Iwakuni-Yanai area
kn-keyword=Iwakuni-Yanai area
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Application of the remotely operated TV vehicle to make geological maps of the Seto Inland Sea
kn-title=水中テレビロボットによる瀬戸内海での海底地質調査
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Submarine geological survey using the remotely operated TV vehicle (RV100), was carried out in 4 offshores of the Seto Inland Sea in Kagawa Prefecture. The study areas are west of Kosei Island of Sakaide City, south of Okado-bana of Nankai Town, west of Misaki of Takuma Town and  north of Nou-Misaki of Sakaide City. TV vehicle transmite clear pictures of bottom of the sea to the monitor on board. The submarine geology of the study areas are composed of Cretaceous granitic basements and Quaternary sedimentary covers. By using these pictures Recent and Pleistocene deposits could be distinguished and lithology of sediments could also be identified. Lithology of sediments was however difficult to identify using the usual sonic prospecting method. Furthermore, pictures suggesting that ripples are just forming have been obtained. The TV vehicle is convenient in submarine survry, because it can travel much longeer and deeper than human diver. A new method of mapping submarine geology using TV vehicle was developed.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=InadaTakashi
en-aut-sei=Inada
en-aut-mei=Takashi
kn-aut-name=稲田孝司
kn-aut-sei=稲田
kn-aut-mei=孝司
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学文学部史学科
en-keyword=Submarine geology
kn-keyword=Submarine geology
en-keyword=the Seto Inland Sea
kn-keyword=the Seto Inland Sea
en-keyword=remotely operated TV vehicle
kn-keyword=remotely operated TV vehicle
END

start-ver=1.4
cd-journal=joma
no-vol=2
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Mineral paragenesis in thermally metamorphosed serpentinites, Ohsa-yama, Okayama Prefecture
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Ohsa-yama ultramafic body, which consists of several types of serpentinized peridotites, underwent contact metamorphism caused by a Cretaceous granite intrusion ; this metamorphism resulted in the formation of contact aureole, 1.5-2.0 km wide, around the granite intrusion, and produced progressive mineral changes in metaserpentinites toward the contact between the Ohsa-yama body and the granite intrusion. On the basis of analysis of mineral paragenetic relations, the Ohsa-yama ultramafic body can be divided into three zones with progressive changes in mineral assemblages as follows : 
 Zone �T : serpentine ± chlorite ± brucite
 Zone �U : olivine + talc ± tremolite ± chlorite
 Zone �V : olivine + orthopyroxene ± tremolite ± spinel
Zone �T corresponds to the parts unaffected by the thermal event, and Zones �U and �V correspond to the thermally metamorphosed parts of the Ohsa-yama body. The results obtained in this study are generally consistent with those of the  previous studies on metamorphic peridotites from the Sangun and Muzuru zones.
en-copyright=
kn-copyright=

en-aut-name=NozakaToshio
en-aut-sei=Nozaka
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=1
ORCID=

en-aut-name=ShibataTsugio
en-aut-sei=Shibata
en-aut-mei=Tsugio
kn-aut-name=柴田次夫
kn-aut-sei=柴田
kn-aut-mei=次夫
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science Okayama University
en-keyword=peridotite
kn-keyword=peridotite
en-keyword=serpentinite
kn-keyword=serpentinite
en-keyword=thermal metamorphism
kn-keyword=thermal metamorphism
en-keyword=contact metamorphism
kn-keyword=contact metamorphism
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=65
end-page=70
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A microcomputer-controlled gradual cooling system for hydrothermal reactors
kn-title=マイコンを使用した水熱合成炉徐冷制御装置の作成
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A used 8 bit microcomputer is applied for an instrument of controlling the heating temperatures of hydrothermal reactor furnaces. The temperatures were changed into appropriate values of voltage by thermocouples and additional devices. The interface board, programmable peripheral interface LSI and some IC's for addres decording are assembled into a complte unti. The device is useful for the inexpensive way of the construction of the accurate temperature control system.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=hydrothermal synthesis
kn-keyword=hydrothermal synthesis
en-keyword=cooling system
kn-keyword=cooling system
en-keyword=personal computer
kn-keyword=personal computer
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=57
end-page=64
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Interpretation of the Crystad Structure of Synthetic Kaliophilite from the Domain Structure of Kalsilite
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The syntheses of kaliophilite have been carried out from the starting materials of near kalsilite compotions (KAISiO4), of which the AI2O3/SiO2 ratio is greater than 1/2. The X-ray powder deffraction pattern fit well to those of previous investigators. The crystal structure of synthetic kaliophilite was proposed by using the model consisting of four different types of kalsilite structure. The positions and intensities of the X-ray powder pattern were able to be explained on the basis of these four domains, belonging to thr twinning by merohedory. As a result of the conditions of the syntheses, it may be supposed that the violation of the AI-O-AI avoidanice rule can possibly exist along the domain boundaries.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkamotoYasuhiko
kn-aut-sei=Okamoto
kn-aut-mei=Yasuhiko
aut-affil-num=1
ORCID=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama Prefectural Educational Center

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=kaliophilite
kn-keyword=kaliophilite
en-keyword=kalsilite
kn-keyword=kalsilite
en-keyword=synthese
kn-keyword=synthese
en-keyword=domain boundary
kn-keyword=domain boundary
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=47
end-page=56
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Ca-bearing Rectorite Mineral from Roseki Deposits, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Several specimens of rectorite-type regularly interstratified mineral (including Ca-rich one of hydrother-mal origin) from roseki deposits together with a few rectorites were examined by chemical analysis, X-ray diffraction and IR spectroscopy.
 These specimens are rich in SiO2, AI2O3 and H2O in addition to considerable amounts of CaO, Na2O and K2O. The Ca content in mica-like layers ranges from a slight amount to exceeding 50% of the total interlayer population. For the Ca-bearing specimens, AI-for-Si substitution in the tetrahedral sheets of mica-like layers increases in proportion to the Ca contents. Characteristic absorption bands of 950-900 cm-1 and 700-670 cm-1 are observed in IR spectra. The bands are due to AI-for-Si substitution in the tetrahedral sheets. Judging from the chemical analysis and IR spectra, the component of mica-like layer rich in Ca is not that of mica but mainly that od margarite (brittle mica). Expansion characteristics of the Ca-rich mineral are similar to rectorite and expandable layer is close to beidellite. The mineral is somewhat less expandable than rectorite under the condition of RH70-80% (Na-saturation) and EG treatment (K-saturation).
 The rectorite-type Ca-rich mineral reported here is simlar to rectorite in its expansion characteristics, but the component of mica-like layers is different from that of rectorite. Mica-like layer of the mineral must be mainly composed of margarite-like layer. The mineral is mainly composed of a 1 : 1 regular interstratification of dioctahedral britlle mica (margarite) and smectite (beidellite). The mineral does not strictly correspond to rectorite, defined as a 1 : 1 interstratified mineral of dioctahedral mica and smectite.
en-copyright=
kn-copyright=

en-aut-name=MatsudaToshihiko
en-aut-sei=Matsuda
en-aut-mei=Toshihiko
kn-aut-name=松田敏彦
kn-aut-sei=松田
kn-aut-mei=敏彦
aut-affil-num=1
ORCID=

en-aut-name=KurosakiMakoto
en-aut-sei=Kurosaki
en-aut-mei=Makoto
kn-aut-name=黒崎誠
kn-aut-sei=黒崎
kn-aut-mei=誠
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=LABO Japanese Language Institute
en-keyword=rectorite
kn-keyword=rectorite
en-keyword=brittle mica/smectite
kn-keyword=brittle mica/smectite
en-keyword=margarite
kn-keyword=margarite
en-keyword=regular interstrarification
kn-keyword=regular interstrarification
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=43
end-page=46
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Sulfur isotope ratios of some Roseki deposits in the Inner Zone of Southwest Japan
kn-title=西南日本内帯のろう石鉱床の硫黄同位体比
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sulfur isotope ratios of pyrite and alunite from 5 Roseki deposits in the Inner Zone of Southwest Japan were determined. The δ34S values of all pyrite samples were in the range from -13.2 to +2.3%, the variation range for each deposit being within 8%. In each deposit δ34S values of alunite were always higher than those of pyrite, which may be interpreted as that alunite was precipirated under more oxidizing conditions than pyrite. Sulfur isotope rations of the Roseki pyrite showed a distribution similar to that of ore sulfur from skarn and vein deposits in the same Zone. This suggests that the origin of sulfur of the Roseki deposits is also host igneous rocks.
en-copyright=
kn-copyright=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=1
ORCID=

en-aut-name=MatsudaToshihiko
en-aut-sei=Matsuda
en-aut-mei=Toshihiko
kn-aut-name=松田敏彦
kn-aut-sei=松田
kn-aut-mei=敏彦
aut-affil-num=2
ORCID=

en-aut-name=NakagawaRaiki
en-aut-sei=Nakagawa
en-aut-mei=Raiki
kn-aut-name=中川頼記
kn-aut-sei=中川
kn-aut-mei=頼記
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=株式会社ヨータイ
en-keyword=sulfur isotope ratio
kn-keyword=sulfur isotope ratio
en-keyword=Roseki deposit
kn-keyword=Roseki deposit
en-keyword=pyrite
kn-keyword=pyrite
en-keyword=alunite
kn-keyword=alunite
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=42
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Inversion of normal mode frequencies for estimation of lateral heterogeneity of the earth's elasticity atructure: A numerical test
kn-title=固有周波数のインバージョンによる地球内部構造の不均質性の推定 　―数値実験―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=An investigation was made on effect of lateral heterogenity of the earth's elasticity structure on the normal mode frequencies. The lateral heterogeneity is expressed by an expansion of spherical harmonic functions, Pιm(cosθ)sinmΦ and Pιm(cosθ)cosmΦ, up to the second order harmonics (ι?2). Free oscillation freguencies of the heterogeneous earth were computed by the xyz algorithm. Further we derived an analytic expression of partial derivatives of eigenfrequency with respect to the expansion coefficients, and performed a numerical test to verify whether or not it is possible to estimate the heterogeneity of the earth's structure by the inversion of noemal mode frequencies.
 When the earth is assumed to be elastically isotropic spheroid with short polar and long equatorial radii, frequency spectra affected by longitudinal heterogeneity terms, Pιm(cosθ)(sinmΦ, cosmΦ) (m≠ 0), for given values of ι and m coincide with each other, because these two terms describe the same heterogeneity when the earth is rotated by π/2m around rotation axis. In such a case, we cannot determine accurately the expansion coefficients of tha two heterogeneity terms by inversion of normal mode frequencies, whereas the coefficients of the latitudinal heterogeneity Pι0(cosθ) can be precisely determined. Therefore it is difficult to estimate of lateral heterogeneity of the earth's elasticity structure by the inversion of normal mode frequencies.
en-copyright=
kn-copyright=

en-aut-name=OnishiSeiji
en-aut-sei=Onishi
en-aut-mei=Seiji
kn-aut-name=大西星司
kn-aut-sei=大西
kn-aut-mei=星司
aut-affil-num=1
ORCID=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院理学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Normal Mode
kn-keyword=Normal Mode
en-keyword=Inversion
kn-keyword=Inversion
en-keyword=Earth's Structure
kn-keyword=Earth's Structure
en-keyword=Lateral Heterogeneity
kn-keyword=Lateral Heterogeneity
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Thermal Expansion of Forsterite, Mg2SiO4 : 1. Measurements
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Thermal expansion of forsterite, Mg2SiO4, is measured up to 1,600 K by the dilatometric method. The present results of volume thermal expansion Yv is 3.20 percent from 300 to 1,200 K and expansion coefficient αv is 40.5 × 10-6 K-1 at 1,200 K. They are close to those of a natural olivine (Suzuki, 1976), but are 4.4 and 11 percent smaller as compared with those reported in the former paper (Suzuki et al., 1984). The Yv and αv of forsterite are 5.00 percent and 46.7 × 10-6 K-1 respectively, at 1,600 K.
en-copyright=
kn-copyright=

en-aut-name=KajiyoshiKoji
en-aut-sei=Kajiyoshi
en-aut-mei=Koji
kn-aut-name=梶芳浩二
kn-aut-sei=梶芳
kn-aut-mei=浩二
aut-affil-num=1
ORCID=

en-aut-name=SuzukiIsao
en-aut-sei=Suzuki
en-aut-mei=Isao
kn-aut-name=鈴木功
kn-aut-sei=鈴木
kn-aut-mei=功
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okayama University
en-keyword=forsterite
kn-keyword=forsterite
en-keyword=olivine
kn-keyword=olivine
en-keyword=thermal expansion
kn-keyword=thermal expansion
en-keyword=high temperature
kn-keyword=high temperature
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=17
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Paleogene talus deposits, Okayama City, Southwest Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In eastern Chugoku area, Paleogene deposits have not been recognized until fission-track dating of so called "Mountain Gravels" was carried out (Suzuki et al. 1995). Two sedimentation events in Paleogene time (27Ma and 34-35Ma) are inferred by the F-T dating Major lithology of the Paleogene deposits in the study area is graved which is mainly composed of subrounded to rounded cobbles. The "Mountain Gravels" were previously thought to be lower Quaternary deposits. The "Mountain Gravels" is associsted with coal bearing mud, sand, gravel and breccia deposits.
 The breccia deposits is distributed sporadically between the "Mountain Gravels" and basement rocks. The deposits are mainly composed of poorly sorted breccia and associated granitic sands. It is inferred that the breccia deposits are talus deposits.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=Paleogene
kn-keyword=Paleogene
en-keyword=breccia
kn-keyword=breccia
en-keyword=talus deposits
kn-keyword=talus deposits
en-keyword=fission-track dating
kn-keyword=fission-track dating
END

start-ver=1.4
cd-journal=joma
no-vol=3
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1996
dt-pub=19960920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Provenance of Lower Cretaceous sediments in the Nariwa and Hokubo areas, Okayama Prefecture, deduced from detrital modes and geochemistry of sandstones
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Petrographic and geochemical study of sandstones from the Kenseki Formation have shown that the sandstones are compositionally immature. The immaturity is reflected geochemically by their low SiO2 contents (52-66 wt%) and petrographically by low modal percents of quartz and K-feldspar, and high modal percents of plagioclase and volcanic lithic fragmants. The Kensaki sandstones are, however, poor in Na2O (up to 2.1 wt%).
 Both petrography and geochemistry suggest a heterogeneous source lithologies of acidic and basic volcanics, sedimentary, and ultramafic rocks. Petrographic evidence is supplied by quartz and plagioclase of volcanic origin, acidic volcanic fragments, basic volcanic fragments, volcanic glass, serpentinite fragments and detrital spinel grains. Geochemical evidence is provided by high FeO* (total iron as FeO), MgO, TiO2, CaO and K2O contents.
 Petrographic and geochemical study of the Kenseki sandstones indicate calc-alkaline oceanic island are provenance. The sediments were locally derived, with Alpine-type ultramafic rocks exposed in the north and volcanic materials of the Akiyoshi Belt supplying the bulk of the detritus.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=Daniel K.Asiedu
kn-aut-sei=Daniel K.
kn-aut-mei=Asiedu
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=ShibataTsugio
en-aut-sei=Shibata
en-aut-mei=Tsugio
kn-aut-name=柴田次夫
kn-aut-sei=柴田
kn-aut-mei=次夫
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=Kenseki Formation
kn-keyword=Kenseki Formation
en-keyword=modal analyses
kn-keyword=modal analyses
en-keyword=provenance
kn-keyword=provenance
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=79
end-page=96
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Trial calculation of relating the equilibrium state of minerals to the descriptive mineralogy
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Statistical calculation have been carried out on the volumes of the asymmetric unit of minerals. This treatment is related to the origin of the symmetry and periodicity of the crystals, and to the equilibrium conditions of these crystals. From the view point of the cohesion energy, if the crystals were grown under the condition of nearly perfect equilibrium states, than all the volumes of the asymmetric unit of each crystal structure will be approximately equal, and if the volume of the asymmetric units of a certain mineral is larger than the average value, this mineral is considered to be grown in a metastable condition. The calculation of the cell dimensions of minerals have been carried out by the use of deta from previous investigations. The statistical consideration of the volumes of the asymmetric unit of minerals is considered to be an appropriate criterion to relate the stability of minerals to their descriptive mineralogy.
en-copyright=
kn-copyright=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=geneses of symmetry
kn-keyword=geneses of symmetry
en-keyword=symmetry
kn-keyword=symmetry
en-keyword=periododicity
kn-keyword=periododicity
en-keyword=equilibrium
kn-keyword=equilibrium
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=73
end-page=78
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=On the plasticity of Si-O framawork of alkali zinc silicates
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The configuration of the Si-O framework in alkali zinc silicates has been investigated on the basis of recently determined structures. The results have shown that there is a linear correlation between the ionic radii of alkali ions and the molar abundance of ZnO+SiO2 per one alkali ion in the structure. This indicates that in the case of zinc silicates, the configuration of the Si-O frameworks is largely influenced by the ionic radii of alkali ions in the structure. On the contrary, in the case of alumino-silicates, the configuration of the Si-O framework is independent of ionic radii of alkali ions. In the former, the Si-O framework is considered to be plastic, while in the latter, it could be called rigid. The latter extreme cases are those of zeolites. In this case, the configuration on frameworks is not entirely influenced by the ionic radii of alkali atoms present. These results are discussed in connection with the historical investigations of silicate structures.
en-copyright=
kn-copyright=

en-aut-name=KoharaShizuo
en-aut-sei=Kohara
en-aut-mei=Shizuo
kn-aut-name=香原静雄
kn-aut-sei=香原
kn-aut-mei=静雄
aut-affil-num=1
ORCID=

en-aut-name=KawaharaAkira
en-aut-sei=Kawahara
en-aut-mei=Akira
kn-aut-name=河原昭
kn-aut-sei=河原
kn-aut-mei=昭
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=silicate
kn-keyword=silicate
en-keyword=zinc silicate
kn-keyword=zinc silicate
en-keyword=alumino-silicate
kn-keyword=alumino-silicate
en-keyword=framework
kn-keyword=framework
en-keyword=ionic radii
kn-keyword=ionic radii
en-keyword=framework configu-ration
kn-keyword=framework configu-ration
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=41
end-page=72
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Structural Modification of KAISiO4 Minerals
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Kalsilite, a polymorph of KAISiO4 is an end member of nepheline-kalsilite series and the mineral was syn-thesized by hydorhermal methods. The synthetic kalsilite is hexagonal, P63, with a=5.151(5), c=8.690(8) A. The structure was refined by full-matrix least-squares methods to a R-value 0.084, using 373 observed reflections. The obtained structure agrees well with those of the natural and the alkali-exchanged specimens reported in the previous literatures. The oxygen atoms are disordered at two mirror-equivalent sites, constructing the domain structure. The average domain structure shows P63mc symmetry and the strctural relation between the two P63 structure corresponds to the twinning by merohedry.
 The domain structure was considered to be caused accompanied with the high-low inversion of the kalslite structure. Heating experiments of kalsilite reveal that the X-ray powder pattern changes at 865℃, and that cell dimensions vary discontinuously at this temperature. It was confirmed that kalsilite underwent a displacive transition like those observed in quartz or tridymite. The high-form is refered as 'high-kalsilite', and a possible simulate model is proposed.
 The structure of the high-kalsilite at 950℃ was refined byfull-matrix least-squares methods to a R-value 0.095, using 115 observed reflections. The high-kalsilite is also hexagonal, P63mc or P63/mmc, with a=5.288(1), c=8.628(5) A at 950℃. The structure almost prefectly coincides with that of the simulated model. Based on the interatomic distances, the distribution of silicon and aluminum atoms is found to be or-dered and the space group is determined to be P63mc.
 Kaliophilite and the related orthorhombic from, polymorphs of KAISiO4, were synthesized by dry method. The synthetic kaliophilite (kaliophilite-H2) is hexagonal with a=5.17(1), c=8.49(3) A, and the orthorhombic KAISiO4 (kaliophilite-O1) is orthormbic with a=9.01(1), b=15.60(2), c=8.53(4) A. Detailed examina-tion of the obtained powder patterns together with that of simulated model indicates that the kaliophilite-H2 has a disorderd structure of four types of the low-kalsilite. The structure was refined by the X-ray powder pattern-fitting method (Rietvelt method) to a R-value 0.121.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkamotoYasuhiko
kn-aut-sei=Okamoto
kn-aut-mei=Yasuhiko
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=The board of education of Okayama Prefecture
en-keyword=kalsilite
kn-keyword=kalsilite
en-keyword=kaliophilite
kn-keyword=kaliophilite
en-keyword=faldspathoid
kn-keyword=faldspathoid
en-keyword=systheses
kn-keyword=systheses
en-keyword=crystal structre
kn-keyword=crystal structre
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=40
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Ferroglaucophane schist from the Ohsa-yama srea, Okayama Prefecture, Japan
kn-title=岡山県大佐山地域に産するフェロ藍閃石片岩
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A ferroglaucophane schist occurs in fault contact with serpentinites at the Ohsa-yama area, Southwest Japan. It consists of albite, ferroglaucophane and actinolite with small amounts of stilpnomelane, sphene, apatite and K-feldspar. Petrological studies reveal that the schist was originally igneous rock of felsic or intermediate composition and has suffered two stages of metamorphism : ferroglaucophane has been formed at the first stage and actinolite at the second stage. In a basic schist from the same outcrop that the ferroglaucophane schist occurs, tremolitic amphibole instead of alkali amphibole has been formed along with chlorite, phengite and albite. Such a difference in mineral association between the schists is ascribed to a difference in whole rock composition, particu-larly in Fe/Mg ratio.
 Some of the schists from th Ohsa-yama area characteristically contain glaucophane or ferroglaucophane and have low Fe2O3/FeO ratios, forming a striking contrast to the crossite schists that commonly occur in the so-called "Sangun metamorphic terrane". These facts suggest that the alkali amphiboles of the Ohsa-yama schists were formed under higher P/T and more reducing conditions than those of the regional metamrphic rocks. On the other hand, development of the second-stage actinolite in the ferroglaucophane schist is consistent with the meta-morphic parageneses of greenschists from adjacent areas. Consequently the ferroglaucophane schist is considered one of the tectonic blocks that were captured by mobile serpentinites and have suffered the regional metamor-phism after the emplacement of the serpentinites into the present geologic position.
en-copyright=
kn-copyright=

en-aut-name=NozakaToshio
en-aut-sei=Nozaka
en-aut-mei=Toshio
kn-aut-name=野坂俊夫
kn-aut-sei=野坂
kn-aut-mei=俊夫
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=ferroglaucophane
kn-keyword=ferroglaucophane
en-keyword=petrology
kn-keyword=petrology
en-keyword=tectonic block
kn-keyword=tectonic block
en-keyword=serpentinite
kn-keyword=serpentinite
en-keyword=high P/T metamorphism,
kn-keyword=high P/T metamorphism,
en-keyword=Ohsa-yama
kn-keyword=Ohsa-yama
en-keyword=Sangun metamorphic terrane
kn-keyword=Sangun metamorphic terrane
en-keyword=Southwest Japan
kn-keyword=Southwest Japan
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=32
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Landslide occurrence and geology of the Triassic Nariwa Group, Southwest Japan
kn-title=三畳系成羽層群の地質と地すべり
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Geological and topographical study of landslides in the Triassic Nariwa Group has been carried out. Nariwa Group is mostly composed of non-marine deposites and is characterized by cycle of fining upward successions. Landslides abundantly occur in the non-marine successions. Slip surface occure in coaly mudstones that have conspicuously less strength than sandstones. Creeps immediately below slip surfaces contribute to the occurrence of landslides in the Nariwa Group.
en-copyright=
kn-copyright=

en-aut-name=HotaniShu
en-aut-sei=Hotani
en-aut-mei=Shu
kn-aut-name=宝谷周
kn-aut-sei=宝谷
kn-aut-mei=周
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=TanakaHajime
en-aut-sei=Tanaka
en-aut-mei=Hajime
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=3
ORCID=

en-aut-name=YamadaTakuya
en-aut-sei=Yamada
en-aut-mei=Takuya
kn-aut-name=山田琢哉
kn-aut-sei=山田
kn-aut-mei=琢哉
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院理学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=複建調査設計�梶@岡山支社

affil-num=4
en-affil=
kn-affil=複建調査設計�梶@岡山支社
en-keyword=Iandslide
kn-keyword=Iandslide
en-keyword=Nariwa Group
kn-keyword=Nariwa Group
en-keyword=coaly mudstone
kn-keyword=coaly mudstone
END

start-ver=1.4
cd-journal=joma
no-vol=4
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1997
dt-pub=19970920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Three-dimensional structure of P wave velocity in the crust and upper mantle beneath southwest Japan
kn-title=西南日本の地殻及び上部マントルの三次元P波速度構造
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Trevel-time data of the P wave were inverted to study three-dimensional structure of the P wave velocity in the upper mantle and crust beneath the Shikoku and Chugoku districts, southwest Japan. Low-velocity and high-velocity regions were found in the upper crust of the eastrn and western regions in the Shikoku district, respectively. The activity of crustal earthquakes is high in the eastern region. Moreover a significant high-velocity region exists in the uppermost mantle, where the activity of small earthquakes is very high. A low-velocity region with velocity of 7.0km/s was found just above the descending Philippine Sea plate with high velocity of 8.0 km/s. This region is continued to oceanic crust in the vicinity of the Nankai trough and its velocity is nearly equal to the P wave velocity (6.7 km/s) of oceanic crust. Thus the low velocity is interpreted as the oceanic crust. A high-velocity region is found below the depth of 50km in the Shikoku district. This region suggests the Philippine sea plate lying horizontally from the Shikoku districts to the ocast of the Seto Inland Sea of the Chugoku district. A low-velocity zone suggesting the volcanic front is found around the depth of 50km at the coast of the Japan Sea of the Chugoku distrit.
en-copyright=
kn-copyright=

en-aut-name=TanakaTakashi
en-aut-sei=Tanaka
en-aut-mei=Takashi
kn-aut-name=田中猛士
kn-aut-sei=田中
kn-aut-mei=猛士
aut-affil-num=1
ORCID=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球学科
en-keyword=Three-dimenrsional structure
kn-keyword=Three-dimenrsional structure
en-keyword=P wave
kn-keyword=P wave
en-keyword=Crust
kn-keyword=Crust
en-keyword=Upper mantle
kn-keyword=Upper mantle
en-keyword=Philippine Sea plate
kn-keyword=Philippine Sea plate
END

start-ver=1.4
cd-journal=joma
no-vol=5
cd-vols=
no-issue=1
article-no=
start-page=17
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Sulfur isotope rations of sulfide minerals from the deposit of the Tsuchikura mine, Shiga Prafecture, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sulfur isotope rations of sulfide minerals in the ore specimens from the deposit of the Tsuchikura mine are distrib-uted in a range from -0.8 to 5.4%, mostly from +0.5 to 3.0%, close to the previous data (from +1 to +3%) by Miyake and Sasaki (1980). The distribution range is also similar to the major Besshi-type deposites of the Sambagawa terrain. Sulfur isotope fractionation between coexisting pyrite and chalcopyrite is not uniform. This may be largely due to spatial tearrangament of the initial orebodies to the present form. Sulfide minerals mostly pyrite from host rocks (siltsones, sandstones, basaltic rocks) exhibit remarkably low δ34S values ranging from -49.3 to -2.6%, dis-tinctly different from the δ34S values for sulfide minerals of ores. The low δ34S values may indicate the bacteriogenic origin of host rock sulfides, although it seems peculiar that basaltic rocks also have extremely low δ34S values.
en-copyright=
kn-copyright=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=1
ORCID=

en-aut-name=KaseKatsuo
en-aut-sei=Kase
en-aut-mei=Katsuo
kn-aut-name=加瀬克雄
kn-aut-sei=加瀬
kn-aut-mei=克雄
aut-affil-num=2
ORCID=

en-aut-name=HaradaKaori
en-aut-sei=Harada
en-aut-mei=Kaori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Okayama University
en-keyword=Sulfur isotope ratio
kn-keyword=Sulfur isotope ratio
en-keyword=Besshi-type deposit
kn-keyword=Besshi-type deposit
en-keyword=Tsuchikura mine
kn-keyword=Tsuchikura mine
en-keyword=Pyrite
kn-keyword=Pyrite
en-keyword=Chalcopyrite
kn-keyword=Chalcopyrite
END

start-ver=1.4
cd-journal=joma
no-vol=5
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=16
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=(14)C ages of Quaternary deposits in Kojima Lake area, Tamano City, Okayama Prefecture
kn-title=児島湾干拓地におけるボーリング試料から得られた(14)C年代測定値
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Two 14C ages are obtained from drilled core samples in Kojima Lake area. One is 7920±250 y.B.P. from peat which is just below silty clay of bay sediments (-14.30-14.61 m) The other is 24900+3450,-2450 y.B.P. from pale milky gray clay of fluvial sediments (-24.15-24.45 m).
en-copyright=
kn-copyright=

en-aut-name=SasakiHajime
en-aut-sei=Sasaki
en-aut-mei=Hajime
kn-aut-name=佐々木甫
kn-aut-sei=佐々木
kn-aut-mei=甫
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=�鞄血噬Wオテック　北関東支店

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=(14)C age
kn-keyword=(14)C age
en-keyword=Quaternary
kn-keyword=Quaternary
en-keyword=Kojima Lake area
kn-keyword=Kojima Lake area
END

start-ver=1.4
cd-journal=joma
no-vol=5
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1998
dt-pub=19980920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Topography and deposits of terrace of Yokohama Town, Northeast Japan
kn-title=横浜町に発達する段丘に地形と堆積物
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Higher, middle and Lower Terraces (Quaternary) have been distinguished in Yokohama Town, Aomori Prefecture. The Higher Terraces are subdivided into three terraces, H1,H2 and H3. They are distributed in hills. H1 and H2 deposites are composed of gravels of fan deposits. H3 deposits are composed of gravels, sands and mud of alluvial plain deposits. The Middle Terraces are subdivided into three terraces, M1, M1' and M2, and occupy almost all terraces in Yokohama Town. These deposits are composed of beach (sand with gravel) and fan (gravel) deposits. The Lower Terraces are subdivided into two terraces, L1 and L2. The L1 Terrace is distributed in limited area along coast and thought to be composed of beach deposits. The L2 Terrace is distributed in limited area along river and composed of braided stream deposits.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=MiyawakiAkiko
en-aut-sei=Miyawaki
en-aut-mei=Akiko
kn-aut-name=宮脇明子
kn-aut-sei=宮脇
kn-aut-mei=明子
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=
en-keyword=terrace
kn-keyword=terrace
en-keyword=beach deposits
kn-keyword=beach deposits
en-keyword=fan deposits
kn-keyword=fan deposits
en-keyword=Quaternary
kn-keyword=Quaternary
END

start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Hydrogen and oxygen isotope ratios of thermal waters of Okayama Prefecture, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Hydrogen and oxygen isotope rations of thermal waters from 46 spas in Okayama Prefecture range from -62.6 to -29.2% in δD and from -10.0 to -4.4% in δ18O, respectively. The isotope rations indicate that all but one of the thermal water in Okayama prefecture are meteoric in origin. The Ofuku thermal water is the only exception, which is probably a mixture of seawater and meteoric water with the ratio of about 1.
 Sulfur isotope rations of dissolvel sulfate in the thermal waters range from -6.2 ti 59.3% in δ34S. The high δ34S values observed in some thermal waters may be due to bacterial reduction of sulfate.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamamotoMasahiro
kn-aut-sei=Yamamoto
kn-aut-mei=Masahiro
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=IchimotoHideo
kn-aut-sei=Ichimoto
kn-aut-mei=Hideo
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KomatsuShinji
kn-aut-sei=Komatsu
kn-aut-mei=Shinji
aut-affil-num=3
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamashitaRuka
kn-aut-sei=Yamashita
kn-aut-mei=Ruka
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Okayama Gakugeikan High School

affil-num=2
en-affil=
kn-affil=Okayama Gakugeikan High School

affil-num=3
en-affil=
kn-affil=Yamaguchi Branch, Oyo Corporation

affil-num=4
en-affil=
kn-affil=Graduate School of Science, Nagoya University
en-keyword=Hydrogen isotope ratio
kn-keyword=Hydrogen isotope ratio
en-keyword=Oxygen isotope ratio
kn-keyword=Oxygen isotope ratio
en-keyword=Sulfur isotope ratio
kn-keyword=Sulfur isotope ratio
en-keyword=Thermal water
kn-keyword=Thermal water
en-keyword=Spa Okayama
kn-keyword=Spa Okayama
END

start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=1
article-no=
start-page=29
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Chemical and Rb-Sr isotopic features of the shock-melted chondrite Yamato-793533
kn-title=衝突溶融隕石Y-793533コンドライトの化学組成とRb-Sr系
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Sr isotopic compositions and Rb and Sr abundances, as well as major element abundances in olivine, pyroxenes and glass, were determined for a chip and 21 fractions separated from a shock-melted chondrite Yamato-793533, a dark-colored, porous stone with glassy texture. Two lithologies were recognized for the 1.5g specimen studied (Yamato-793533, 67) ; L (Main portion) and L to LL (Dark portion) chondritic in terms of chemical compositions of olivine and pyroxenes. The chemical compositions of glass are relatively homogeneous (SiO2=67-77%) compared to those of other ordinary chondrites, suggesting a moderate cooling rate after shock-melting. The data points for fractions do not foem any isochron in a 87Rb/86Sr vs. 87Sr/86Sr diagram. However, it is noted that six out of nine points for the dark portion plot around a 1.2 Ga line, while most of points for the main portion plot around a 4.55 Ga chondrite isochron. The observed difference could be responsible for difference in melting degrees between the two portions. Similar Rb-Sr features have been found among shock-melted Yamato-79 LL-chondrites which are considered to be paired stones experienced the same shock-melting event at 1.2 Ga. Consequently, the Rb-Sr systematics as well as petrologic features strongly suggest that Yamato-793533 is a member of a series of the shock-melted Yamato-79 LL-chondrites.
en-copyright=
kn-copyright=

en-aut-name=OkanoOsamu
en-aut-sei=Okano
en-aut-mei=Osamu
kn-aut-name=岡野修
kn-aut-sei=岡野
kn-aut-mei=修
aut-affil-num=1
ORCID=

en-aut-name=KatayamaHiroko
en-aut-sei=Katayama
en-aut-mei=Hiroko
kn-aut-name=片山博子
kn-aut-sei=片山
kn-aut-mei=博子
aut-affil-num=2
ORCID=

en-aut-name=NakamuraNoboru
en-aut-sei=Nakamura
en-aut-mei=Noboru
kn-aut-name=中村昇
kn-aut-sei=中村
kn-aut-mei=昇
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=神戸大学理学部地球惑星科学科
en-keyword=LL-chondrite
kn-keyword=LL-chondrite
en-keyword=Shock-melting
kn-keyword=Shock-melting
en-keyword=Sr isotope
kn-keyword=Sr isotope
END

start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=28
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Peat bed of Jomon age in Desaki Beach, Tamano City, Okayama Prefecture
kn-title=玉野市出崎海岸に露出した縄文時代の泥炭層
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Peat bed remains isolated in the shoreline of western beach of Desaki peninsula. Collected samples gave radiocarbon data of 5790±80 and 5810±60 years BP.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=YukimotoKoichi
en-aut-sei=Yukimoto
en-aut-mei=Koichi
kn-aut-name=行基幸一
kn-aut-sei=行基
kn-aut-mei=幸一
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=2
en-affil=
kn-affil=大建工業株式会社
en-keyword=Peat
kn-keyword=Peat
en-keyword=Holocene
kn-keyword=Holocene
en-keyword=Desaki Beach
kn-keyword=Desaki Beach
END

start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Measurements of CO2 in air and sea over the Western Pacific-MR98-04 Cruise-
kn-title=西太平洋における大気・海洋中二酸化炭素濃度の測定 ―MR98-04 次航海―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=It is well known that the ocean plays a very important role in the overall geochemical cycle of CO2. Over the ocean surface, CO2 is equilibrated between partial pressure of CO2 in the seawater (pCO2) and that in the atmosphere(PCO2).
 The objectives of the present observation are to evaluate the following : (1) Horizontal distribution of pCO2 and PCO2, (2) Sea surface CO2 flux and (3) Vertical distribution of pCO2.
en-copyright=
kn-copyright=

en-aut-name=KonoTakehiko
en-aut-sei=Kono
en-aut-mei=Takehiko
kn-aut-name=河野雄彦
kn-aut-sei=河野
kn-aut-mei=雄彦
aut-affil-num=1
ORCID=

en-aut-name=YamashitaEiji
en-aut-sei=Yamashita
en-aut-mei=Eiji
kn-aut-name=山下栄次
kn-aut-sei=山下
kn-aut-mei=栄次
aut-affil-num=2
ORCID=

en-aut-name=NogamiTerumasa
en-aut-sei=Nogami
en-aut-mei=Terumasa
kn-aut-name=野上晃正
kn-aut-sei=野上
kn-aut-mei=晃正
aut-affil-num=3
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山理科大学技術科学研究所環境工学部門

affil-num=3
en-affil=
kn-affil=岡山理科大学大学院工学研究科

affil-num=4
en-affil=
kn-affil=岡山大学理学部地球科学科
en-keyword=Western Pacific
kn-keyword=Western Pacific
en-keyword=pCO2
kn-keyword=pCO2
en-keyword=PCO2
kn-keyword=PCO2
en-keyword=Horizontal distribution
kn-keyword=Horizontal distribution
en-keyword=CO2 flux
kn-keyword=CO2 flux
en-keyword=Vertical distribution
kn-keyword=Vertical distribution
END

start-ver=1.4
cd-journal=joma
no-vol=6
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1999
dt-pub=19990920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Phlogopite and Hornblende in the Contact Metamorphosed Ultramafic Complex at Yanomine, Sangun Metamorphic Zone, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Phlogopite and hornblende were found in amall amounts in the contact-metamorphosed dunite-harzburgite complex at Yanomine. Phlogopite occurs in interstices of silicate minerals in dunite and harzburgite located near the contact with granite. Some phlogopite grains also occur as inclusions in chromian spinel of chromitite bands. Hornblende is present associated with such metamorphic minerals as talc, olivine and orthopyroxene. Interstitial phlogopite is characterized by lower TiO2 and higher K/(K+Na) atomic ratio compared to that included in chromian spined. Hornblende in dunite chages its composition from edenite associated with olivine-talc through edenitic hornblende to Si-poorer magnesio-hastingsitic hornblende and magnesio-hastingsite with olivine or olivine-orhtopyroxene.
 The interstitial phlogopite is suggested to have been formed intimately connected with fluids generated in ralation to the intrusion of granite. On the other hand, included phlogopite is considered to have crystallized from the incompatible elements-enriched hydrous melt resulted from mantle-melt interaction. Hornblende should be a metamorphic mineral formed under high temperature conditions.
en-copyright=
kn-copyright=

en-aut-name=InoueYoshinori
en-aut-sei=Inoue
en-aut-mei=Yoshinori
kn-aut-name=井上佳紀
kn-aut-sei=井上
kn-aut-mei=佳紀
aut-affil-num=1
ORCID=

en-aut-name=KaseKatsuo
en-aut-sei=Kase
en-aut-mei=Katsuo
kn-aut-name=加瀬克雄
kn-aut-sei=加瀬
kn-aut-mei=克雄
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=Phlogopite
kn-keyword=Phlogopite
en-keyword=Hornblende
kn-keyword=Hornblende
en-keyword=Ultramafic complex
kn-keyword=Ultramafic complex
en-keyword=Dunite
kn-keyword=Dunite
en-keyword=Harzburgite
kn-keyword=Harzburgite
en-keyword=Chromitite
kn-keyword=Chromitite
en-keyword=Contact metamor-phism
kn-keyword=Contact metamor-phism
en-keyword=Yanomine
kn-keyword=Yanomine
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=47
end-page=50
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=A New Species of Lithostrotion (Siphonodendron)(Rugosa) from the Hina Limestone, Okayama Prefecture, Southwest Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A new rugose coral species, Lithostrotion (Siphonodendron) hinensis is described in this paper. It was collected from the Carboniferous Hina limestone in Okayama Prefecture, Southwest Japan. Judging from the paleontological data, the age indicates probably Late Viaean, Early Carboniferous.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamagiwaNobuo
kn-aut-sei=Yamagiwa
kn-aut-mei=Nobuo
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=OkimuraYuji
kn-aut-sei=Okimura
kn-aut-mei=Yuji
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Emeritus Prof. of Osaka Kyoiku University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=3
en-affil=
kn-affil=Emeritus Prof. of Hiroshima University
en-keyword=Early Carboniferous
kn-keyword=Early Carboniferous
en-keyword=rugosa
kn-keyword=rugosa
en-keyword=Lithostrotion (Siphonodendron)
kn-keyword=Lithostrotion (Siphonodendron)
en-keyword=Hina Limestone
kn-keyword=Hina Limestone
en-keyword=Okayama
kn-keyword=Okayama
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=41
end-page=46
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Tidal notch cut into the Namigata Limestone, 240m above sea level, Ibara City, Okayama Prefecture
kn-title=岡山県井原市浪形の標高240mの石灰岩に残された海食地形
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The tidal notch and the sea caves which cut into the Namigata Limestone is stiuated in 240m above sea level, Ibara City. The notch assocciates the Namigata Terrace 200m to 240m high. These geomorphological features indicate an event of high sea level. However the age of the event has not been known.
en-copyright=
kn-copyright=

en-aut-name=FujiwaraTakao
en-aut-sei=Fujiwara
en-aut-mei=Takao
kn-aut-name=藤原貴生
kn-aut-sei=藤原
kn-aut-mei=貴生
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=MaedaYasuo
en-aut-sei=Maeda
en-aut-mei=Yasuo
kn-aut-name=前田保夫
kn-aut-sei=前田
kn-aut-mei=保夫
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Ryuten Astro Park

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=3
en-affil=
kn-affil=Institute of Natural and Environmental Sciences, Himeji Institute of Technology
en-keyword=notch
kn-keyword=notch
en-keyword=sea cave
kn-keyword=sea cave
en-keyword=Namigata
kn-keyword=Namigata
en-keyword=Okayama Prefecture
kn-keyword=Okayama Prefecture
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=35
end-page=40
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Relashonships between "Mountation Gravels" and the Bizen and Tomihara Coal Measures, northern Okayama City, Southwest Japan
kn-title=岡山市北部, 備前, 富原炭鉱の夾炭層と「山砂利層」との関係
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Bizen and Tomihara Coalfields which were situated in northern Okayama City, had produced lignite during 1940s. Distribution of coal measures indicates that the coal measures are intercalated in the middle of the so-called "Mountain Gravels". The "Mountain Gravels" is subdivided into two formations ; the older, about 34〜35Ma, and the younger, about 27Ma, of fission track ages. The older formation inculudes the Bizen Coal Measures. On the other hand, the Tomihara Coal Measures are intercalated in the younger formation.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

en-aut-name=NakazawaKeiji
en-aut-sei=Nakazawa
en-aut-mei=Keiji
kn-aut-name=中澤圭二
kn-aut-sei=中澤
kn-aut-mei=圭二
aut-affil-num=2
ORCID=

en-aut-name=TanakaHajime
en-aut-sei=Tanaka
en-aut-mei=Hajime
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Emeritus Prof. of Kyoto University

affil-num=3
en-affil=
kn-affil=Fukken Co.
en-keyword=Bizen Coal Measures
kn-keyword=Bizen Coal Measures
en-keyword=Tomihara Coal Measures
kn-keyword=Tomihara Coal Measures
en-keyword=Okayama City
kn-keyword=Okayama City
en-keyword=Paleogene
kn-keyword=Paleogene
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=27
end-page=34
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Chemical composition of clinopyroxenes associated with the gehlenite skarn from the Hirata outcrop, Kushiro, Tojo-Cho, Hiroshima Prefecture, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The clinopyroxenes of the hybrid rocks from the Hirata outcrop, Kushiro, Hiroshima Prefecture, Japan are grouped into(1)diopside, (2)aegirine, and (3)zoned pyroxene. The diopside occurs as isolated crystals enclosed in feldspars. The aegirine occurs along with late hydrous minerals in pore spaces. The zoned pyroxenes occur as discrete cryatals with wide rims growing interstitially between feldspar laths and show a continuous composition-al trend from diopside through hedenbergite and aegirine-augite to aegirine or titanian aegirine. The pyroxenes enclosed in feldspars and the cores of the zoned crystals have nearly same chemical composition. The late stage pyroxenes are characterized by extreme enrichment of sodium and sometimes titanium. The titanian aegirines studied hera are characterized by the predominance of the Na(Fe2+, Mg)0.5Ti0.5Si2O6 component over other Ti-bearing pyroxene components.
 The compositional trend of clinopyroxenes from the Hirata hybrid rocks follows a typical trend of peralkalne rocks. The peralkaline neture of the Hirata samples is a result of compositional change of magma accompanied by the metasomatic skarn formation.
en-copyright=
kn-copyright=

en-aut-name=HenmiChiyoko
en-aut-sei=Henmi
en-aut-mei=Chiyoko
kn-aut-name=逸見千代子
kn-aut-sei=逸見
kn-aut-mei=千代子
aut-affil-num=1
ORCID=

en-aut-name=KusachiIsao
en-aut-sei=Kusachi
en-aut-mei=Isao
kn-aut-name=草地功
kn-aut-sei=草地
kn-aut-mei=功
aut-affil-num=2
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=KagetamaTatsuya
kn-aut-sei=Kagetama
kn-aut-mei=Tatsuya
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, School of Education, Okayama University

affil-num=3
en-affil=
kn-affil=Shinagawa Refractories Co., Ltd.
en-keyword=aegirine
kn-keyword=aegirine
en-keyword=aegirine-augite
kn-keyword=aegirine-augite
en-keyword=diopside
kn-keyword=diopside
en-keyword=pyroxene
kn-keyword=pyroxene
en-keyword=hybrid rock
kn-keyword=hybrid rock
en-keyword=skarn
kn-keyword=skarn
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=21
end-page=26
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Water-soluble materials formed by the reaction between a volcanic rock and HCI and/or SO2 gases
kn-title=火山岩とHCIおよびSO2ガスの反応により生成する水溶性物質
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Experiments on the reaction of a volcanic rock, dacite with HCI and /or SO2 gases have been carried out at room temperature to 800℃ for understanding of the condition of the formation of water-soluble materials on volcanic ash. HCI reacted with the dacite mainly at low temperatures (?200℃), whereas SO2 did at high temperatures (?400℃). It was also found that CI/SO4 ratios of water-soluble materials were very high at low temperatures, but decreased rapidly with increasing temperature. In the experiments using a mixture of HCI and SO2, the cation composition at 600℃ and 800℃ was revealed to be significantly different from that at lower temperatures, suggesting the change in the reaction process with temperature.
en-copyright=
kn-copyright=

en-aut-name=AkagiSeishi
en-aut-sei=Akagi
en-aut-mei=Seishi
kn-aut-name=赤木誠司
kn-aut-sei=赤木
kn-aut-mei=誠司
aut-affil-num=1
ORCID=

en-aut-name=YamamotoMasahiro
en-aut-sei=Yamamoto
en-aut-mei=Masahiro
kn-aut-name=山本雅弘
kn-aut-sei=山本
kn-aut-mei=雅弘
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=Volcanic gas
kn-keyword=Volcanic gas
en-keyword=Volcanic ash
kn-keyword=Volcanic ash
en-keyword=Water-soluble material
kn-keyword=Water-soluble material
en-keyword=CI/SO4 ratio
kn-keyword=CI/SO4 ratio
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=20
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Native gold from Mikawa mine, Niigata Prefecture, Japan
kn-title=新潟県東蒲原郡三川村三川鉱山産の自然金
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Native gold was found at Mikawa mine, Niigata Prefecture, Japan. The mineral was associated with quartz in a druse within quartz-vein in propyrite. The crystals were formed in filiform, reticulated and dendritic shapes with about 1 mm length with 0.1 mm width and 0.05 mm thickness. Very malleable and ductile, opaque and yellow with metallic luster. Qualitative and semi-quantiative analyses were performed by the wavelength dispersive EPMA. Quantitatively, the crystals contained Au, Ag and Hg. Semi-quantitative analyses were executed with ZAF correction algorithm. The results showed that these specimens had a average chemical composition Au0.77 Ag0.11Hg0.12. This specimen was archived at our site with a collection number ESO-M01001.
en-copyright=
kn-copyright=

en-aut-name=YamakawaJunji
en-aut-sei=Yamakawa
en-aut-mei=Junji
kn-aut-name=山川純次
kn-aut-sei=山川
kn-aut-mei=純次
aut-affil-num=1
ORCID=

en-aut-name=TanabeMitsuo
en-aut-sei=Tanabe
en-aut-mei=Mitsuo
kn-aut-name=田邊満雄
kn-aut-sei=田邊
kn-aut-mei=満雄
aut-affil-num=2
ORCID=

en-aut-name=ShimadaKazumasa
en-aut-sei=Shimada
en-aut-mei=Kazumasa
kn-aut-name=島田和昌
kn-aut-sei=島田
kn-aut-mei=和昌
aut-affil-num=3
ORCID=

en-aut-name=HenmiChiyoko
en-aut-sei=Henmi
en-aut-mei=Chiyoko
kn-aut-name=逸見千代子
kn-aut-sei=逸見
kn-aut-mei=千代子
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Science, Faculty of Science, Okayama University

affil-num=2
en-affil=
kn-affil=Okayama Mineral and Fossi club

affil-num=3
en-affil=
kn-affil=Okayama Mineral and Fossi club

affil-num=4
en-affil=
kn-affil=Department of Earth Science, Faculty of Science, Okayama University
en-keyword=Native Gold
kn-keyword=Native Gold
en-keyword=Mikawa Mine
kn-keyword=Mikawa Mine
en-keyword=electrum
kn-keyword=electrum
en-keyword=ESO-M01001
kn-keyword=ESO-M01001
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=S-wave velocity structure estimated from long-period coda waves
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Long-period coda waves were recorded on the vertical-component seismograms of aftershocks of the Hyogo-ken Nanbu earthquake, 1995. We identify the long-period coda waves as Rayleigh wave, because they appear after the S-arrival times and exhibit the normal dispersion that propagation velocity of the coda waves increases with an increase in period. By applying the moving window analysis to the coda waves from nine aftershocks, the group velocities are determined as a function of period within the range of 2 to 8 s. The group velocity dispersion data are inverted to investigate the S-wave velocity structure of the upper crust. The S-wave velocity structure is consistent with those obtained in previous studies using traval time analysis of bood waves.
en-copyright=
kn-copyright=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=ItoAki
kn-aut-sei=Ito
kn-aut-mei=Aki
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=2
en-affil=
kn-affil=Observation Center for Prediction of Earthquakes and Volcanic Eruptions, Tohoku University
en-keyword=surface wave dispersion
kn-keyword=surface wave dispersion
en-keyword=coda wave
kn-keyword=coda wave
en-keyword=S-wave velocity structure
kn-keyword=S-wave velocity structure
en-keyword=upper crust
kn-keyword=upper crust
en-keyword=Hyogo-ken
kn-keyword=Hyogo-ken
END

start-ver=1.4
cd-journal=joma
no-vol=7
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2000
dt-pub=20000920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Automated observation of sea surface eddy flux on a cruising ship
kn-title=船舶を用いた海面乱流フラックスの自動観測
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Sea surface eddy fluxes were evaluated with the eddy correlation method including ship motion correction for the wind vector components. Previous ship motion correction algorithm was revised as a simple scheme setting a motion sensor at the same place with the sonic anemometer. This revised eddy flux system was mounted as a routine continuous measurement system on the R/V 'Mirai' of Japan Marine Science and Technology Center.
 The first cruise was conducted at the tropical weatern Pacific in June 2000. Continuous sea surface fluxes were obtained and the data quality was checked with some parameters. This system is planned to be developed as a automated data processing system including ship motion correction and real-time flux evaluation system. These eddy fluxes can be integrated with the bulk fluxes and radiation fluxes to understand sea surface heat balance over the global ocean.
en-copyright=
kn-copyright=

en-aut-name=TakahashiSatoshi
en-aut-sei=Takahashi
en-aut-mei=Satoshi
kn-aut-name=高橋聡司
kn-aut-sei=高橋
kn-aut-mei=聡司
aut-affil-num=1
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=2
ORCID=

en-aut-name=IshidaHiroshi
en-aut-sei=Ishida
en-aut-mei=Hiroshi
kn-aut-name=石田廣史
kn-aut-sei=石田
kn-aut-mei=廣史
aut-affil-num=3
ORCID=

en-aut-name=YoneyamaKunio
en-aut-sei=Yoneyama
en-aut-mei=Kunio
kn-aut-name=米山邦夫
kn-aut-sei=米山
kn-aut-mei=邦夫
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球科学科

affil-num=3
en-affil=
kn-affil=神戸商船大学/地球観測フロンティア

affil-num=4
en-affil=
kn-affil=海洋科学技術センター
en-keyword=Sea surface fliux
kn-keyword=Sea surface fliux
en-keyword=Automated observation
kn-keyword=Automated observation
en-keyword=Eddy correlation method
kn-keyword=Eddy correlation method
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=44
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Hydrogen and oxygen isotope rations of thermal waters of Izu Peninsula, Shizuoka Prefecture, Japan
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Hydrogen and oxygen isotope ratios of thermal waters from 42 hot springs in Izu Peninsula, Shizuoka Prefecture, range from -51.7 to -24.7% in δD and from -7.9 to -4.1% in δ18O, respectively. The isotope ratios suggest that most of the thermal waters in Izu Peninsula are essentially meteoric in origin. Significantly deviated from the normal meteoric waters are thermal waters from Yumigahama, Kumomi, and Shimogamo hot springs which may be mixtures of seawater and local meteoric waters, and thermal waters from Izusan and Imaihama whose oxygen isotope ratios may have become heavier by water-rock interaction.　
en-copyright=
kn-copyright=

en-aut-name=KobyashiDaiju
en-aut-sei=Kobyashi
en-aut-mei=Daiju
kn-aut-name=小林大樹
kn-aut-sei=小林
kn-aut-mei=大樹
aut-affil-num=1
ORCID=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=YamamotoMasahiro
kn-aut-sei=Yamamoto
kn-aut-mei=Masahiro
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okayama University
en-keyword=Hydrogen isotope ratio
kn-keyword=Hydrogen isotope ratio
en-keyword=Oxygen isotope ratio
kn-keyword=Oxygen isotope ratio
en-keyword=Thermal water
kn-keyword=Thermal water
en-keyword=Hot spring
kn-keyword=Hot spring
en-keyword=Izu Peninsula
kn-keyword=Izu Peninsula
en-keyword=Shizuoka Prefecture
kn-keyword=Shizuoka Prefecture
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=1
article-no=
start-page=29
end-page=38
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Relationship between the water quality of three main rivers and geology of Okayama Prafecture
kn-title=岡山県の主要3河川の水質と地質の関係
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Concentrations of inorganic major components (Ca2+, Mg2+, Na+, K+, ΣFe, AI3+, HCO3, SO4, CI-, NO3, F- and SiO2) were measured in 57 water samples from three main rivers, the Yoshii, Asahi and Takahashi Rivers and their tributaries. The water quality is discussed in relation to the geological environment in the drainage basin of three rivers. The following results were obtained from the investigation. The degree of influence of rocks on the water quality was limestone≫basic rocks>clastic rocks>andesite>rhyolite>gramite. The influence of geology is clear in the riverhead but it is obscure in the downstream. The concentration of each component increases generally from the upper stream to the lower stream but that of SiO2 only decreases in the lower stream. Kaolinite is a stable mineral as a weathering prodouct from the ion compositions of three rivers. In a rough estimation, Yoshii, Asahi and Takahashi Rivers weather 303,000t, 433,000t and 1,033,000t of the rocks respectively from their basins in a year. The syrface of their basins are scraoed off 0.06mm, 0.11mm and 0.15mm respectively in a year.
en-copyright=
kn-copyright=

en-aut-name=Kinoshitatakuya
en-aut-sei=Kinoshita
en-aut-mei=takuya
kn-aut-name=木下卓也
kn-aut-sei=木下
kn-aut-mei=卓也
aut-affil-num=1
ORCID=

en-aut-name=MatsudaToshihiko
en-aut-sei=Matsuda
en-aut-mei=Toshihiko
kn-aut-name=松田敏彦
kn-aut-sei=松田
kn-aut-mei=敏彦
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Ministry of Justice

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=Water quality
kn-keyword=Water quality
en-keyword=River water
kn-keyword=River water
en-keyword=Geology of basin
kn-keyword=Geology of basin
en-keyword=Yoshii River
kn-keyword=Yoshii River
en-keyword=Asahi River
kn-keyword=Asahi River
en-keyword=Takahashi River
kn-keyword=Takahashi River
en-keyword=Okayama Prefecture
kn-keyword=Okayama Prefecture
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=1
article-no=
start-page=13
end-page=28
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Trace of the Median Tectonic Line in Mima area, eastern Shikoku
kn-title=四国東部, 美馬町地域の中央構造線
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Tracing outcrops of shear zone were used to describe the geometry and structure of the Median Tectonic Line in Mima area, eastrn Shikoku. A distinct new fault outcrop was discovered between the Mino and Ikuchi Faults at the northern slope of the Mt. Boso. These two faults are regarded as a single continuous fault.
 The analysis of surface fabrics of quartz in fault in fault gauge has been carried out to determine relative fault activity events.
en-copyright=
kn-copyright=

en-aut-name=MizuiYoshinobu
en-aut-sei=Mizui
en-aut-mei=Yoshinobu
kn-aut-name=水井良暢
kn-aut-sei=水井
kn-aut-mei=良暢
aut-affil-num=1
ORCID=

en-aut-name=TachibanaToru
en-aut-sei=Tachibana
en-aut-mei=Toru
kn-aut-name=橘徹
kn-aut-sei=橘
kn-aut-mei=徹
aut-affil-num=2
ORCID=

en-aut-name=Suzukishigeyuki
en-aut-sei=Suzuki
en-aut-mei=shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Nikken gijutu-sha Corp.

affil-num=2
en-affil=
kn-affil=Reserach Org. for Environmental Geology of Setouchi, c/o Suzuki Office, Graduate School of Natural Science, and Technology, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=surface fabrics
kn-keyword=surface fabrics
en-keyword=fault gauge
kn-keyword=fault gauge
en-keyword=Mino-Ikuchi Fault
kn-keyword=Mino-Ikuchi Fault
en-keyword=Median Tectonic Line
kn-keyword=Median Tectonic Line
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=12
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2001
dt-pub=20010920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Miocene Ukan Formation, Ukan Area, Okayama Prefecture, Southwest Japan
kn-title=有漢町に分布する中新統有漢累層
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In this paper, we deal with the Miocene Ukan Formation, sporadically distributed in Ukan-cho, Okayama prefecture, from a viewpoint of analysis of lithology and molluscan assemblages. 
 The Ukan Formation is lithostratigraphically divided into the Suzuoka Conglomerate, Yamagata Muddy Sandstone, Shimoyokomi Sandstone and Conglomerate, Azechi Sandstone and Conglomerate, Tsuneyama Siltstone Members in ascending order.
 The following 6 molluscan assemblages are recognized.
 The lower four members and the last member is correlative to the Lower Sandstone and Upper Shale Formation of the Bihoku Group, respectively judging from lithology and fauna.
 The temporal chages of the above mentioned molluscan assemblages represents that gradual deeping of sea during the depositional period from the Suzuoka Conglomerate and Yamagata Muddy Sandstone Members to the Azechi Sandstone and Conglomerate Member via the Shimoyokomi Sandstone and Conglomerate Member, and abrupt deeping of sea seems to have happened between the Azechi Sandstone and Conglomerate Member and the Tsuneyame Siltstone Member.
en-copyright=
kn-copyright=

en-aut-name=FujiwaraTakao
en-aut-sei=Fujiwara
en-aut-mei=Takao
kn-aut-name=藤原貴生
kn-aut-sei=藤原
kn-aut-mei=貴生
aut-affil-num=1
ORCID=

en-aut-name=TaguchiEiji
en-aut-sei=Taguchi
en-aut-mei=Eiji
kn-aut-name=田口栄次
kn-aut-sei=田口
kn-aut-mei=栄次
aut-affil-num=2
ORCID=

en-aut-name=Suzukishigeyuki
en-aut-sei=Suzuki
en-aut-mei=shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Ryutenn Astro Park

affil-num=2
en-affil=
kn-affil=Reserach org. for Environmental Geology of Setouchi, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=Lithology
kn-keyword=Lithology
en-keyword=Molluscan assemblage
kn-keyword=Molluscan assemblage
en-keyword=Paleoenvironmental change
kn-keyword=Paleoenvironmental change
en-keyword=Ukan Miocene
kn-keyword=Ukan Miocene
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=41
end-page=52
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Fog observation in Tsuyama basin
kn-title=津山盆地における霧の観測
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Tsuyama basin is the largest basin in the Chugoku District, and dense fog appears frequently in autumn/winter. The fog is considered as "radiation fog", mainly induced by radiation cooling and topographical effect as the basin, including "cold air lake". The mechanism of the fog was not studied based on field measurements. Some statistical analyses are found in the literature. So we made intensive observation of the radiation fog mainly focusing on space and time distribution for the fog appearance and disappearance. The field measurement included tethered sonde observation, mobile observation and multi-point visual observations in October, 1999 and November, 2000.
 According to the observation, the appearance of the fog was identified both feom visual observation and upper air sounding data. The top of the fog layer was clearly found as temperature/humidity singularities. Additionally, it is successfully confirmed the usefulness of the upward looking radiation thermometer in the fog detection.
en-copyright=
kn-copyright=

en-aut-name=JokoMinoru
en-aut-sei=Joko
en-aut-mei=Minoru
kn-aut-name=上甲実
kn-aut-sei=上甲
kn-aut-mei=実
aut-affil-num=1
ORCID=

en-aut-name=KiyoharaYasutomo
en-aut-sei=Kiyohara
en-aut-mei=Yasutomo
kn-aut-name=清原康友
kn-aut-sei=清原
kn-aut-mei=康友
aut-affil-num=2
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Kobe University

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=Fog
kn-keyword=Fog
en-keyword=Radiation cooling
kn-keyword=Radiation cooling
en-keyword=Tsuyama Basin
kn-keyword=Tsuyama Basin
en-keyword=Tethered sonde obsrvation
kn-keyword=Tethered sonde obsrvation
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=31
end-page=40
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Meteorological and surface heat balance characteristice over different surface condidtions in arid northwest China (HEIFE area)
kn-title=中国西北部乾燥地域(HEIFE領域)の様々な地表面における気象要素と熱収支特性
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Surface meteorological and heat balance were analyzed based on various surface conditions over arid region in northwest China (HEIFE area). The different surface conditions were clearly observed in summer rather than in winter. Summer data were selected from the HEIFE database.
 Significant evening peaks of vapor pressure were also observed in Linze oasis as well as Zhangye oasis. And the peak was accompanied by air temperature dip and relative humidity peak in the lower layer. However, the peak cannot be observed in high wind condition as the mechanical mixing reduces the vertical gradients of air temperature and humidity. The oasis can be characterized by low wind speed due to wind sheltering by plants. In winter, plant activities are reduced and surface conditions are almost similar for desert and oasis, leading to no peak of vapor pressure.
 Surface heat balances were also analyzed based on 4-component radiation measurement and sensible and latent heat flux measurements by eddy covariance method. Net radiation in the oasis area is about 50% larger than desert area due to the smaller upwelling radiation in oasis. Heat distribution into sensible heat and latent heat was different between oasis and desert. This unbalance of heat can lead to local circulation between oasis and desert as "desart-oasis interaction".
en-copyright=
kn-copyright=

en-aut-name=YangQin
en-aut-sei=Yang
en-aut-mei=Qin
kn-aut-name=楊勤
kn-aut-sei=楊
kn-aut-mei=勤
aut-affil-num=1
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=Vapor pressure
kn-keyword=Vapor pressure
en-keyword=Oasis
kn-keyword=Oasis
en-keyword=Desert
kn-keyword=Desert
en-keyword=HEIFE
kn-keyword=HEIFE
en-keyword=Surface heat balance
kn-keyword=Surface heat balance
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=25
end-page=30
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=The slope map of the Kibi plateau
kn-title=傾斜区分図と第三紀層の分布でみた吉備高原の地形発達史
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A peneplain is evident in Takahashi area from slope map presented in this paper. The map shows that older gentle valleys exist in the Kibi Plateau. Miocene marine deposits are colored on the slope map. The Miocene marine deposits mostly distribute along the older valleys. The distribution of the Paleogene gravel river deposits is not cintrolled by topography.
en-copyright=
kn-copyright=

en-aut-name=FujiwaraTakao
en-aut-sei=Fujiwara
en-aut-mei=Takao
kn-aut-name=藤原貴生
kn-aut-sei=藤原
kn-aut-mei=貴生
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Ryuten Astro Park

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculity of Science, Okayama University
en-keyword=Kibi Plateau
kn-keyword=Kibi Plateau
en-keyword=slope map
kn-keyword=slope map
en-keyword=Miocene
kn-keyword=Miocene
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=19
end-page=24
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Pyrite spots formed along slaty cleavage texture of pelitic rocks of the Tamba Belt, Ujitawara Town, Kyoto Prefecture, Southwest Japan.
kn-title=京都府宇治田原町の丹波帯泥質岩のストレート劈開に沿って産出する黄鉄鉱スポットについて
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Pyrite spots were identified in pelitic rocks from the Ujitawara area, southernmost part of Tamba belt. XMA analysis shows that the spots are composed of pyrite. The spots occur along slaty cleavage plane and form spotted shape of diameter of about 5mm.
en-copyright=
kn-copyright=

en-aut-name=MikamiTeiji
en-aut-sei=Mikami
en-aut-mei=Teiji
kn-aut-name=三上禎次
kn-aut-sei=三上
kn-aut-mei=禎次
aut-affil-num=1
ORCID=

en-aut-name=MusashinoMakoto
en-aut-sei=Musashino
en-aut-mei=Makoto
kn-aut-name=武蔵野實
kn-aut-sei=武蔵
kn-aut-mei=野實
aut-affil-num=2
ORCID=

en-aut-name=Suzukishigeyuki
en-aut-sei=Suzuki
en-aut-mei=shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Graduate school of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Kyoto University of Education

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Graduate school of Natural Science and Technology, Okayama University
en-keyword=The Tamba Group
kn-keyword=The Tamba Group
en-keyword=Ujitawata
kn-keyword=Ujitawata
en-keyword=pelitic rocks
kn-keyword=pelitic rocks
en-keyword=pyrite spots
kn-keyword=pyrite spots
en-keyword=slaty cleavage
kn-keyword=slaty cleavage
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=9
end-page=18
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Sedimentary environments of mangrove swamp in the Funaura Bay, Iriomote Island, Okinawa Prefecture, Southwest Japan
kn-title=西表島船浦湾におけるマングローブ干潟の堆積環境　―堆積物と生物遺骸の保存状況について―
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The distribution of conch shell contained in clastic sediments in the mangrove swamps in the Funaura Bay, Iriomote Island, Okinawa Prefecture was studied. The sediments in the mangrove swamp are mainly composed of up to 90% sands. The sand clasts are inferred to be derived from the sandstone of Miocene Yaeyama Group. The conch shells are richer in the muddy fraction than the sandy fraction. Many Terebralia palustris inhabit the mangrove swamp. However few dead shells were also observed in the sediments. Effect of selective transportation hermit crabs is considered to be the cause of this distribution.
en-copyright=
kn-copyright=

en-aut-name=AzumaHiroyuki
en-aut-sei=Azuma
en-aut-mei=Hiroyuki
kn-aut-name=東裕行
kn-aut-sei=東
kn-aut-mei=裕行
aut-affil-num=1
ORCID=

en-aut-name=SaigusaMasayuki
en-aut-sei=Saigusa
en-aut-mei=Masayuki
kn-aut-name=三枝誠行
kn-aut-sei=三枝
kn-aut-mei=誠行
aut-affil-num=2
ORCID=

en-aut-name=FukudaHiroshi
en-aut-sei=Fukuda
en-aut-mei=Hiroshi
kn-aut-name=福田宏
kn-aut-sei=福田
kn-aut-mei=宏
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of  Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Biology, Faculity of Science, Okayama University

affil-num=3
en-affil=
kn-affil=Faculity of Agriculture, Okayama University
en-keyword=conch shell
kn-keyword=conch shell
en-keyword=Mangrove swamp
kn-keyword=Mangrove swamp
en-keyword=Terebralia palustris
kn-keyword=Terebralia palustris
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=8
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2002
dt-pub=20020920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Geology of high- to ultrahigh-temperature granulites from central Madurai block, southern India ; with emphasis on the evolution of Grt-Opx-Crd granulite
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The geology of Ganguvapatti area situated at the central Madurai block of southern India consisting of varous high-grade metamorphic rock types. This contribution briefly describes the geology, field occurrences and petrography of metamorphic rock from Ganguvarpatti area. Ganguvarpatti is known for its occurrence of sapphirine-bearing UHT granulites while the surrounding granulites are less studied. So in this contribution we have discussed the pressure-temperature stability and evolution of granulites surrounding UHT granulites. The pressure-temperature estimation of garnet-orthopyroxene-cordierite granulite resulted a near peak temperature condition of>950゜ C at a pressure between 9-10 kbar. These results are in good agreement with the stability field in the KFMASH petrogenetic frid.
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=SaieevK
kn-aut-sei=Saieev
kn-aut-mei=K
aut-affil-num=1
ORCID=

en-aut-name=OsanaiYasuhito
en-aut-sei=Osanai
en-aut-mei=Yasuhito
kn-aut-name=小山内康人
kn-aut-sei=小山内
kn-aut-mei=康人
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate school of  Natural science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=岡山大学教育学部地学教室
en-keyword=Madurai block
kn-keyword=Madurai block
en-keyword=southrn India
kn-keyword=southrn India
en-keyword=UHT-granulites
kn-keyword=UHT-granulites
en-keyword=P-T estimation
kn-keyword=P-T estimation
en-keyword=multi-stage evolution
kn-keyword=multi-stage evolution
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20031220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=A note on dental nomenclature in the Rhinocerotidae
kn-title=サイの歯冠上の構造に対する用語について
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The terminology for the molars of rhinoceorses is mainly derived from Osborn (1888). However, there is often confusion surrounding nomenclature of cheek teeth and the measuring point of the teeth. The nomenclature for the teeth of rhinoceroses and the controversy were reviewed. In this paper, I suggest the new nomenclatures that are composed of 24 elements for the upper cheek teeth and 12 ones for the lower ones and I also suggest the measuring points of teeth of the Rhinocerotidae.
en-copyright=
kn-copyright=

en-aut-name=FukuchiAkira
en-aut-sei=Fukuchi
en-aut-mei=Akira
kn-aut-name=福地亮
kn-aut-sei=福地
kn-aut-mei=亮
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=The Graduate School of  Natural Science and Technology, Okayama University
en-keyword=teminology
kn-keyword=teminology
en-keyword=teeth
kn-keyword=teeth
en-keyword=rhinoceros
kn-keyword=rhinoceros
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20031220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Depositional environments of the Katsuta Group, eastern Tsuyama Basin, Southwest Japan
kn-title=津山盆地東部に分布する中新統勝田層群の堆積環境
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The Miocene Katauta Group of the Syohoku-cho area is subdivides into 6 members ; The Uetsuki Conglomerate Member, Nara Sandy Mudstone Member, Tai Gravelly Sandstone Member, Takatori Conglomerate Member, Ayabe Mudstone Member and Maruyama Mutstone Member from bottom to top.
 The unconformity between Miocene deposits and basement rocks in this area was traced to obtain geometry of the Miocene basin. Contour maps of the bases of the Miocene Yoshino Formation and Takakura Formation indicate paleo-topography. The obtained topography demonstrates a valley, which flowed to north-west, and a few islands and bays. It indicates that these Miocene successuions were deposited in the topography which resemble to the present Seto Inland.
en-copyright=
kn-copyright=

en-aut-name=YamasakiRyo
en-aut-sei=Yamasaki
en-aut-mei=Ryo
kn-aut-name=山崎良
kn-aut-sei=山崎
kn-aut-mei=良
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Kiso-jiban Consultants Co., Ltd.

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=Katsuta Group
kn-keyword=Katsuta Group
en-keyword=Tsuyama Basin
kn-keyword=Tsuyama Basin
en-keyword=Miocene
kn-keyword=Miocene
en-keyword=geometry of basin
kn-keyword=geometry of basin
en-keyword=paleoenvironmental chage
kn-keyword=paleoenvironmental chage
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20031220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Distributions and ages of the Paleogene deposits in the Kibi Plateau Area, and Paleogene paleogeography
kn-title=吉備高原周辺の古第三系に関する最近の知見とその古地理学的意義
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The "Kibi Plateau" forms a unique geomorphic province with the gently-sloping and stable continental feature. Gravel deposites called the "Mountain Gravels", are distributed sporadically in the Kibi Plateau, and have been considered Pliocene deposits. However, recent fission-track ages of the tuff beds intercalated in the deposits have indicated that the ago of deposits are Paleogen in the age. So far, fission-track ages (using zircon) of 61 to 65, 55, 37, 34 to 35 and 27 Ma are obtained. Remaining the belt-like distributions of the Paleogene gravelly valley-full deposits suggest that the Kibe Plateau has been keeping as a stable block, and repeated periods of incision followed by sedimentation of valley-fill deposits are occurred in the area during Paleogene period.
en-copyright=
kn-copyright=

en-aut-name=TanakaHajime
en-aut-sei=Tanaka
en-aut-mei=Hajime
kn-aut-name=田中元
kn-aut-sei=田中
kn-aut-mei=元
aut-affil-num=1
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=2
ORCID=

en-aut-name=HotaniShu
en-aut-sei=Hotani
en-aut-mei=Shu
kn-aut-name=宝谷周
kn-aut-sei=宝谷
kn-aut-mei=周
aut-affil-num=3
ORCID=

en-aut-name=YamamotoYasuo
en-aut-sei=Yamamoto
en-aut-mei=Yasuo
kn-aut-name=山本裕雄
kn-aut-sei=山本
kn-aut-mei=裕雄
aut-affil-num=4
ORCID=

en-aut-name=DanharaTohru
en-aut-sei=Danhara
en-aut-mei=Tohru
kn-aut-name=壇原徹
kn-aut-sei=壇原
kn-aut-mei=徹
aut-affil-num=5
ORCID=

affil-num=1
en-affil=
kn-affil=Fukken Co., Ltd.

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology

affil-num=3
en-affil=
kn-affil=INA Co., Ltd.

affil-num=4
en-affil=
kn-affil=KANSO Co., Ltd.

affil-num=5
en-affil=
kn-affil=Kyoto Fission-Track Co., Ltd.
en-keyword=Kibi Plateau
kn-keyword=Kibi Plateau
en-keyword=gravelly valley-fill deposites
kn-keyword=gravelly valley-fill deposites
en-keyword=fission-track ages
kn-keyword=fission-track ages
en-keyword=Paleogene palaeogeography
kn-keyword=Paleogene palaeogeography
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=1
article-no=
start-page=11
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20031220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Elasticity of diopside CaMgSi(2)O(6) measured by means of the resonant sphere technique, RST
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Resonant frequencies for a single crystad diopside sphere are measured accurately and rhirteen elastic moduli are reluced by the least squares calculation, A set of mduli gives theoretical resonant frequencies close enough to the observed ones.
en-copyright=
kn-copyright=

en-aut-name=SuzukiIsao
en-aut-sei=Suzuki
en-aut-mei=Isao
kn-aut-name=鈴木功
kn-aut-sei=鈴木
kn-aut-mei=功
aut-affil-num=1
ORCID=

en-aut-name=InouyeYasushi
en-aut-sei=Inouye
en-aut-mei=Yasushi
kn-aut-name=井上靖
kn-aut-sei=井上
kn-aut-mei=靖
aut-affil-num=2
ORCID=

en-aut-name=OdaHitoshi
en-aut-sei=Oda
en-aut-mei=Hitoshi
kn-aut-name=小田仁
kn-aut-sei=小田
kn-aut-mei=仁
aut-affil-num=3
ORCID=

en-aut-name=MoriokaMasana
en-aut-sei=Morioka
en-aut-mei=Masana
kn-aut-name=森岡正名
kn-aut-sei=森岡
kn-aut-mei=正名
aut-affil-num=4
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Science, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Science, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Science, Okayama University

affil-num=4
en-affil=
kn-affil=The Isotope Center, University of Tokyo
en-keyword=diopside
kn-keyword=diopside
en-keyword=single crystal
kn-keyword=single crystal
en-keyword=resonace
kn-keyword=resonace
en-keyword=sphere
kn-keyword=sphere
en-keyword=elasticity
kn-keyword=elasticity
END

start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=1
article-no=
start-page=1
end-page=10
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2003
dt-pub=20031220
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Zinc Contents of Mafic Micerals in Granitic Rocks, with Special Reference to Ore Chemistry
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In order to know the reason why the Cu/Zn-Pb ratios of skarn-type deposits related with the ilmenite-series granitic rocks are markedly higher than those related with the magnetite-series, comparative mineralogical studies were carried out for the two types of granitic rocks in the Chugoku district. An attention was focused on the be-havior of Zn during the crystallization of granitic magma, because Zn contents of mafic minerals can be obtained by non-destructive electron microprobe analyses.
 Microscopic observation indicats that no sphalerite occurs in the magnetite-series granitic rocks, which im-plies that the magmas corresponding to the granitic rocks were undersaturated in respect to ZnS. Electron micro-probe analyses revealed that the Fe/(Fe+Mg) ratios of mafic minerals such as biotite and hornblende in the ilmen-ite-series granitic rocks are remarkably higher than those in the magnetite-series, and the Zn contents are posi-tively correlated with the Fe/(Fe+Mg) ratios in the ilmenite-series granitic rocks. Also the Zn/Fe rations seem to be slightly higher in the ilmenite-series granitic rocks. In contrast, the correlation between Zn contents and Fe/(Fe+Mg) ratios is ambiguous in magnetite-series granitic rocks.
 With a progress of crystallization differentiation, therefore, Zn may be removed more effectively in the il-menite-series granitic magma, and the contents may be growing scarce in the fractionated ilmenite-series granitic magma. On the other hand, magnetite-series granitic magma probably increases the Zn-contents in the advanced stage of the crystallization. The hydrothermal fluids genetically related to the fractionated magnetite-series grani-tic magma are likely to be enriched in Zn, being favorable for the formation of Zn-rich deposits.
en-copyright=
kn-copyright=

en-aut-name=TomiyaHisashi
en-aut-sei=Tomiya
en-aut-mei=Hisashi
kn-aut-name=冨谷尚士
kn-aut-sei=冨谷
kn-aut-mei=尚士
aut-affil-num=1
ORCID=

en-aut-name=InoueYoshinori
en-aut-sei=Inoue
en-aut-mei=Yoshinori
kn-aut-name=井上佳紀
kn-aut-sei=井上
kn-aut-mei=佳紀
aut-affil-num=2
ORCID=

en-aut-name=KaseKatsuo
en-aut-sei=Kase
en-aut-mei=Katsuo
kn-aut-name=加瀬克雄
kn-aut-sei=加瀬
kn-aut-mei=克雄
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Earth Science, Faculty of Science, Okayama University
en-keyword=Magnetite-series
kn-keyword=Magnetite-series
en-keyword=Ilmentie-series
kn-keyword=Ilmentie-series
en-keyword=Granitic rocks
kn-keyword=Granitic rocks
en-keyword=Zn contents
kn-keyword=Zn contents
en-keyword=Mafic minerals
kn-keyword=Mafic minerals
en-keyword=Ore deposit
kn-keyword=Ore deposit
END

start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=39
end-page=47
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20041231
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Paleoenvironmental Analyses of the Buried Peat Deposit during the mid-Holocene at the Desaki Coast in Tamano City, Okayama Prefecture, Weatern Japan
kn-title=岡山県玉野市出崎海岸に埋没する完新世中期の泥炭層の古環境解析
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=The buried peat deposit was foud in the sand beach on the Desaki coast (Tamano City, Okayama Prefecture), the northeastern coast of Seto Inland Sea. In this study, we performed sulfur and diatom analyses of the deposit. The results were used along with 14C dates and the eruption age (7300 cal BP) of Kikai-Akahoya tephra (K-Ab) to derive sedimentary environments of the deposit. K-Ah was detected just below the peat deposit. At the culmination of the Jomon transgression, the peat deposit had been formed in brackish environments of salt marsh for about 300 years. In order to reconstruct local paleovegetation, we analyzed pollen, wood and plant fossils in the deposit. The results show vegetational transition from a deciduous broadleaved forest mainly of Ouercus subgen. Lepidobalanus to Pinus forest. In spite of the Holocene thermal optimum, the vegetation dominated by Ouercus subgen. Cyclobanopsis was not recognized at the Desaki site, as has been shown in many other regions of regions of western Japan. Ouercus sect. Prinus was replaced by Ouercus sect. Aegilops as the dominant section of Ouercus subgen. Lepidobalanus, suggesting early establishment of traditional rural vegetation of 'Satoyama' in Japan. However, no evidence for human agency has been obtained from the mid-Holocene archaeological sites around the Desaki site. Thus it is more likely that this vegetational transition resulted from the succession caused by natural forces such as ecological disturbance and climatic and/or endemic situations rather than by cultural deforestation.
en-copyright=
kn-copyright=

en-aut-name=MatsushitaMariko
en-aut-sei=Matsushita
en-aut-mei=Mariko
kn-aut-name=松下まり子
kn-aut-sei=松下
kn-aut-mei=まり子
aut-affil-num=1
ORCID=

en-aut-name=SatoHiroshi
en-aut-sei=Sato
en-aut-mei=Hiroshi
kn-aut-name=佐藤裕司
kn-aut-sei=佐藤
kn-aut-mei=裕司
aut-affil-num=2
ORCID=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=3
ORCID=

en-aut-name=YukumotoKoichi
en-aut-sei=Yukumoto
en-aut-mei=Koichi
kn-aut-name=行基幸一
kn-aut-sei=行基
kn-aut-mei=幸一
aut-affil-num=4
ORCID=

en-aut-name=MomoharaArata
en-aut-sei=Momohara
en-aut-mei=Arata
kn-aut-name=百原新
kn-aut-sei=百原
kn-aut-mei=新
aut-affil-num=5
ORCID=

en-aut-name=UedaYayoi
en-aut-sei=Ueda
en-aut-mei=Yayoi
kn-aut-name=植田弥生
kn-aut-sei=植田
kn-aut-mei=弥生
aut-affil-num=6
ORCID=

en-aut-name=KatohShigehiro
en-aut-sei=Katoh
en-aut-mei=Shigehiro
kn-aut-name=加藤茂弘
kn-aut-sei=加藤
kn-aut-mei=茂弘
aut-affil-num=7
ORCID=

en-aut-name=MaedaYasuo
en-aut-sei=Maeda
en-aut-mei=Yasuo
kn-aut-name=前田保夫
kn-aut-sei=前田
kn-aut-mei=保夫
aut-affil-num=8
ORCID=

affil-num=1
en-affil=
kn-affil=Research Institute for Higher Education, Kobe University

affil-num=2
en-affil=
kn-affil=Institute of Natural and Environmental Sciences, University of Hyogo

affil-num=3
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University

affil-num=4
en-affil=
kn-affil=Daiken Kogyo Co Ltd.

affil-num=5
en-affil=
kn-affil=Department of Environmental Science, Faculty of Horiculture, Chiba University

affil-num=6
en-affil=
kn-affil=Paleo Labo Co Ltd.

affil-num=7
en-affil=
kn-affil=Museum of Nature and Human Activities, Hyogo

affil-num=8
en-affil=
kn-affil=Institute of Natural and Environmental Sciences, University of Hyogo
en-keyword=Desaki coast
kn-keyword=Desaki coast
en-keyword=diatom remains
kn-keyword=diatom remains
en-keyword=Jomon transgression
kn-keyword=Jomon transgression
en-keyword=Kikai-Akahoya tephra
kn-keyword=Kikai-Akahoya tephra
en-keyword=mid-Holocene
kn-keyword=mid-Holocene
en-keyword=Paleoenvironment
kn-keyword=Paleoenvironment
en-keyword=peat deposit
kn-keyword=peat deposit
en-keyword=plant fossils
kn-keyword=plant fossils
END

start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=33
end-page=37
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20041231
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Relative sea-level changes of the Okayama Plain Area during the Holocene, Southwest Japan
kn-title=岡山平野における最終氷期最盛期以降の海水準変動
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Postglacial relative sea-level change of the Okayama Plain Area has been analyzed. Former sea-levels were recognized by using peat beds and marine organisms which are also available for 14C dating. Peat beds were rhought to be formed under a stable sea-level condition. 14C ages of the analyzed peat beds were seprated by 4 groups ; 30〜18 ka BP, 11〜8 ka BP, 6〜4 ka BP and 3〜2.5 ka BP, indicate 4 stable sea-level periods. 2 transgressive events (18〜11 ka BP and 8〜6 ka BP) and one regressive event (3.5?〜3 ka BP) were also inferred.
en-copyright=
kn-copyright=

en-aut-name=SuzukiShigeyuki
en-aut-sei=Suzuki
en-aut-mei=Shigeyuki
kn-aut-name=鈴木茂之
kn-aut-sei=鈴木
kn-aut-mei=茂之
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Faculty of Science, Okayama University
en-keyword=sea-level  change
kn-keyword=sea-level  change
en-keyword=peat bed
kn-keyword=peat bed
en-keyword=Holocene
kn-keyword=Holocene
en-keyword=Okayama Plain
kn-keyword=Okayama Plain
END

start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=23
end-page=31
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20041231
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Paleoceanography of the Eastern Asia from the Last Glacial Maximum to the early Holocene
kn-title=東アジアにおける最終氷期最盛期から完新世初期の海洋古環境
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=A series of marginal seas that are separated from the Pacific Ocean by island arcs developed in Eastern Asia. The environmental property of these marginal seas amplified under a sea-level lowstand during the Last Glacial Maximum (LGM). The Japan Sea was covered by low salinity water during the LGM. At the beginning of the post-glacial sea-level rise, the Oyashio Current firstly flowed into the Japan Sea throught the Tsugaru Strait. The influx of the Tsushima Current started around 10,000 yBP and become vigorously after 8,000 yBP. Meanwhile, the northward migration and influx of the Kuroshio Current into East China Sea started around 10,000 yBP and strengthened after 7,500 yBP. The route alternation of the Kuroshio Current might have contributed to the establishment of the Tsushima Current and acted as a trigger for the drastic environmental changes around the merginal seas in Eastern Asia at the time of the post-glacial sea-level rise.
en-copyright=
kn-copyright=

en-aut-name=KanHironobu
en-aut-sei=Kan
en-aut-mei=Hironobu
kn-aut-name=菅浩伸
kn-aut-sei=菅
kn-aut-mei=浩伸
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=Faculty of Education, Okayama University
en-keyword=Paleoceanography
kn-keyword=Paleoceanography
en-keyword=Last Glacial Maximum
kn-keyword=Last Glacial Maximum
END

start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=15
end-page=22
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20041231
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=Increase Rate of fCO2 in the Eastern Equatorial Pacific Ocean
kn-title=太平洋東部赤道海域における二酸化炭素分圧の増加速度
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=In the Eastern Equatorial Pacific Ocean, increase rates of fCO2 in the air and the ocean were evaluated using the CDIAC data set. The fCO2 in the air was increasing about 1.28μatm/year during 1957-1995. This result is almost same as the rate at the Mauna Loa, Hawaii in Tropical Pacific Ocean. The increase rate of fCO2 in the seawater was estimated as 1.64μatm/year. In this study it is found that the increase rate of fCO2 in the seawater is the almost same as that of fCO2 in the air. This reault supports the result on the snapshot analysis of Takahashi et al. (1983) in thr North Atlantic Ocean during 1958-1982. It is smaller than the result including seasonal variation in the Eastern Subtropical Pacific Ocean. These reault indicated that the anthropogenic CO2 in the air has affected fCO2 in seawater through CO2 gas exchange between the atmosphere and the ocean. It is found that fCO2 in the seawater has increased in the Eastern Equatiorial Pacific Ocean in spite of the large CO2 source region. It suggested that CO2 source potential has not changed in this ocean durung 1957-1995.
en-copyright=
kn-copyright=

en-aut-name=KondoFumiyoshi
en-aut-sei=Kondo
en-aut-mei=Fumiyoshi
kn-aut-name=近藤文義
kn-aut-sei=近藤
kn-aut-mei=文義
aut-affil-num=1
ORCID=

en-aut-name=TsukamotoOsamu
en-aut-sei=Tsukamoto
en-aut-mei=Osamu
kn-aut-name=塚本修
kn-aut-sei=塚本
kn-aut-mei=修
aut-affil-num=2
ORCID=

en-aut-name=WatanabeShuichi
en-aut-sei=Watanabe
en-aut-mei=Shuichi
kn-aut-name=渡邉修一
kn-aut-sei=渡邉
kn-aut-mei=修一
aut-affil-num=3
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学大学院自然科学研究科

affil-num=2
en-affil=
kn-affil=岡山大学理学部地球学科

affil-num=3
en-affil=
kn-affil=海洋研究開発機構地球環境観測センター
en-keyword=fCO2
kn-keyword=fCO2
en-keyword=Increase Rate
kn-keyword=Increase Rate
en-keyword=Eastern Equatorial Pacific Ocean
kn-keyword=Eastern Equatorial Pacific Ocean
en-keyword=E1 Nino
kn-keyword=E1 Nino
en-keyword=La Nina
kn-keyword=La Nina
END

start-ver=1.4
cd-journal=joma
no-vol=11
cd-vols=
no-issue=1
article-no=
start-page=7
end-page=14
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2004
dt-pub=20041231
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=β-, γ-相(Mg,Fe)2SiO4の弾性率の温度変化 : 補遺
kn-title=Temperature dependence of elastic moduli of β-and γ-(Mg,Fe)2SiO4 : Supplements
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=We measured the resonant frequencies for sphere specimens of the high pressure phases, β-and γ-(Mg0.91Fe0.09)2SiO4 from 298 to 470 K. The adibatic bulk modulus Ks and shear modulus μ at 298 K were determined to be Ks=165.72(6), μ=105.43(2) GPa for the β-phase, and Ks=185.1(2), μ=118.22(6) GPa for the γ-phase, respectively. The average slopes of the moduli at the measured temperature ranges were found to be ∂Ks/∂T=-0.175(3), ∂μ/∂T=-0.0159(1) GPaK-1 for the β-phase and ∂Ks/∂T=-0.193(6), ∂μ/∂T=-0.148(3) GPaK-1 for the γ-phase. The numerals in parentheses indicate probeble errors in the last place. In this technical report, we describe the observed frequencies and calcuation method to obtain elastic moduli, in details.
en-copyright=
kn-copyright=

en-aut-name=MayamaNorihito
en-aut-sei=Mayama
en-aut-mei=Norihito
kn-aut-name=間山憲仁
kn-aut-sei=間山
kn-aut-mei=憲仁
aut-affil-num=1
ORCID=

en-aut-name=SuzukiIsao
en-aut-sei=Suzuki
en-aut-mei=Isao
kn-aut-name=鈴木功
kn-aut-sei=鈴木
kn-aut-mei=功
aut-affil-num=2
ORCID=

affil-num=1
en-affil=
kn-affil=Department of Earth Sciences, Okayama University

affil-num=2
en-affil=
kn-affil=Department of Earth Sciences, Okayama University
en-keyword=Wadsleyite
kn-keyword=Wadsleyite
en-keyword=Ringwoodite
kn-keyword=Ringwoodite
en-keyword=Elastic moduli
kn-keyword=Elastic moduli
END