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JaLCDOI 10.18926/ESR/13891
Title Alternative Automated observation of sea surface eddy flux on a cruising ship
FullText URL ESR_7_1.pdf
Author Takahashi, Satoshi| Tsukamoto, Osamu| Ishida, Hiroshi| Yoneyama, Kunio|
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.
Keywords Sea surface fliux Automated observation Eddy correlation method
Publication Title Okayama University Earth Science Report
Published Date 2000-09-20
Volume volume7
Issue issue1
Start Page 1
End Page 14
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310644
Author Yamamoto, Takako| Akhmad, Sabarudin| Noguchi, Osamu| Takayanagi, Toshio| Oshima, Mitsuko| Motomizu, Shoji|
Published Date 2006-11-17
Publication Title 分析化学
Volume volume55
Issue issue9
Content Type Journal Article
JaLCDOI 10.18926/ESR/13889
FullText URL ESR_8_1_39.pdf
Author Kobyashi, Daiju| Yamamoto Masahiro|
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. 
Keywords Hydrogen isotope ratio Oxygen isotope ratio Thermal water Hot spring Izu Peninsula Shizuoka Prefecture
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 39
End Page 44
ISSN 1340-7414
language English
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310513
JaLCDOI 10.18926/ESR/13888
Title Alternative Relationship between the water quality of three main rivers and geology of Okayama Prafecture
FullText URL ESR_8_1_29.pdf
Author Kinoshita, takuya| Matsuda, Toshihiko|
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.
Keywords Water quality River water Geology of basin Yoshii River Asahi River Takahashi River Okayama Prefecture
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 29
End Page 38
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310339
JaLCDOI 10.18926/ESR/13887
Title Alternative Trace of the Median Tectonic Line in Mima area, eastern Shikoku
FullText URL ESR_8_1_13.pdf
Author Mizui, Yoshinobu| Tachibana, Toru| Suzuki, shigeyuki|
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.
Keywords surface fabrics fault gauge Mino-Ikuchi Fault Median Tectonic Line
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 13
End Page 28
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310656
Author Kimura, Yasuhiro|
Published Date 1994-12
Publication Title 岡山医学会雑誌
Volume volume106
Issue issue11-12
Content Type Journal Article
JaLCDOI 10.18926/ESR/13885
Title Alternative Miocene Ukan Formation, Ukan Area, Okayama Prefecture, Southwest Japan
FullText URL ESR_8_1_1.pdf
Author Fujiwara, Takao| Taguchi, Eiji| Suzuki, shigeyuki|
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.
Keywords Lithology Molluscan assemblage Paleoenvironmental change Ukan Miocene
Publication Title Okayama University Earth Science Report
Published Date 2001-09-20
Volume volume8
Issue issue1
Start Page 1
End Page 12
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310604
Author Miyashita, Katuhiro|
Published Date 1993-08
Publication Title 岡山医学会雑誌
Volume volume105
Issue issue7-8
Content Type Journal Article
Author Joko, Minoru| Kiyohara, Yasutomo| Tsukamoto, Osamu|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
Author Yang, Qin| Tsukamoto, Osamu|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
Author Fujiwara, Takao| Suzuki, Shigeyuki|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
JaLCDOI 10.18926/ESR/13880
Title Alternative Pyrite spots formed along slaty cleavage texture of pelitic rocks of the Tamba Belt, Ujitawara Town, Kyoto Prefecture, Southwest Japan.
FullText URL ESR_9_19.pdf
Author Mikami, Teiji| Musashino, Makoto| Suzuki, shigeyuki|
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.
Keywords The Tamba Group Ujitawata pelitic rocks pyrite spots slaty cleavage
Publication Title Okayama University Earth Science Report
Published Date 2002-09-20
Volume volume9
Issue issue1
Start Page 19
End Page 24
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310485
Author Azuma, Hiroyuki| Saigusa, Masayuki| Fukuda, Hiroshi|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
Author Saieev K| Osanai, Yasuhito|
Published Date 2002-09-20
Publication Title Okayama University Earth Science Report
Volume volume9
Issue issue1
Content Type Departmental Bulletin Paper
Author Irie, Shoichiro|
Published Date 1994-12
Publication Title 岡山医学会雑誌
Volume volume106
Issue issue11-12
Content Type Journal Article
JaLCDOI 10.18926/ESR/13876
Title Alternative A note on dental nomenclature in the Rhinocerotidae
FullText URL earth_science_reports_010_1_33.pdf
Author Fukuchi, Akira|
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.
Keywords teminology teeth rhinoceros
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 33
End Page 37
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310241
JaLCDOI 10.18926/ESR/13875
Title Alternative Depositional environments of the Katsuta Group, eastern Tsuyama Basin, Southwest Japan
FullText URL earth_science_reports_010_1_23.pdf
Author Yamasaki, Ryo| Suzuki, Shigeyuki|
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.
Keywords Katsuta Group Tsuyama Basin Miocene geometry of basin paleoenvironmental chage
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 23
End Page 31
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310475
JaLCDOI 10.18926/ESR/13874
Title Alternative Distributions and ages of the Paleogene deposits in the Kibi Plateau Area, and Paleogene paleogeography
FullText URL earth_science_reports_010_1_15.pdf
Author Tanaka, Hajime| Suzuki, Shigeyuki| Hotani, Shu| Yamamoto, Yasuo| Danhara, Tohru|
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.
Keywords Kibi Plateau gravelly valley-fill deposites fission-track ages Paleogene palaeogeography
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 15
End Page 22
ISSN 1340-7414
language Japanese
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310517
JaLCDOI 10.18926/ESR/13873
FullText URL earth_science_reports_010_1_11.pdf
Author Suzuki, Isao| Inouye, Yasushi| Oda, Hitoshi| Morioka, Masana|
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.
Keywords diopside single crystal resonace sphere elasticity
Publication Title Okayama University Earth Science Report
Published Date 2003-12-20
Volume volume10
Issue issue1
Start Page 11
End Page 14
ISSN 1340-7414
language English
Copyright Holders 岡山大学地球科学研究報告編集委員会
File Version publisher
NAID 120002310552
Author Miyashita, Katuhiro|
Published Date 1993-08
Publication Title 岡山医学会雑誌
Volume volume105
Issue issue7-8
Content Type Journal Article