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JaLCDOI 10.18926/ESR/13871
フルテキストURL earth_science_reports_010_1_1.pdf
著者 冨谷 尚士| 井上 佳紀| 加瀬 克雄|
抄録 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.
キーワード Magnetite-series Ilmentie-series Granitic rocks Zn contents Mafic minerals Ore deposit
出版物タイトル Okayama University Earth Science Report
発行日 2003-12-20
10巻
1号
開始ページ 1
終了ページ 10
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310429
JaLCDOI 10.18926/ESR/13862
タイトル(別表記) β-, γ-相(Mg,Fe)2SiO4の弾性率の温度変化 : 補遺
フルテキストURL earth_science_reports_011_1_7.pdf
著者 間山 憲仁| 鈴木 功|
抄録 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.
キーワード Wadsleyite Ringwoodite Elastic moduli
出版物タイトル Okayama University Earth Science Report
発行日 2004-12-31
11巻
1号
開始ページ 7
終了ページ 14
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310650
JaLCDOI 10.18926/ESR/13861
タイトル(別表記) 重力異常データのカラムインバージョンから見積もったモホ不連続面の形状
フルテキストURL earth_science_reports_011_1_1.pdf
著者 福永 真理子| 小田 仁| 志知 竜一|
抄録 We present an inversion method, called "column inversion", to retrieve two-dimensional variation of the depth to the Moho discontinuity from Bouguer gravity anomaly data, assuming that a density jump between the lower crust and upper mantle is regionally invariant. The inversion method is applied to reveal the apatial undulation of the Moho discontinuity in the Chugoku and Shikoku districts, southwest Japan. The result shows that the Moho is deep in the land area and shallow in the sea area. The Moho is anomalously deep in the west regions of Shikoku and Chugoku districts, where the prominent negative gravity anomaly is observed. The two-dimensional variation of the Moho depth is quite similar to that determined by inversion of the first P-arrival time data. The column inversion of the Bouguer gravity anomaly data is proved to be useful for determining the fine structure of the Moho discontinuity undulation.
キーワード Bouguer Gravity Anomaly Column Inversion Moho Discontinuity Chugoku and Shikoku Districts
出版物タイトル Okayama University Earth Science Report
発行日 2004-12-31
11巻
1号
開始ページ 1
終了ページ 5
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310563
JaLCDOI 10.18926/ESR/13855
タイトル(別表記) 中国淮河流域付近の入梅前の時期における大気場や陸面状態の季節進行 (1998年の事例解析)
フルテキストURL ESR_12_31.pdf
著者 池田 祥一郎| 加藤 内藏進| 塚本 修|
抄録  Seasonal evolution of atmospheric and land surface conditions around the Huaihe River Basin in China in the pre-Meiyu stage of 1998 were examined, mainly based on the GAME re-analysis data. Around the Huaihe River Basin in China (just to the nront of the Changjiang River Basin), although the air temperature increased rapidly already in early June (the Meuyu front was located to the south of that region), the specific humidity did not increas so much at time. In addition, the latent heat supplied from the ground there decreased from late May to early June, compared to that before early May. The time mean southerly wind component across the low-level baroclinic Zone (although not so strong as in the mature stage of the Meiyu) invaded into Central Cjina during late April to early May. On the other hand, the relatively strong wind region once retreated southward in the middle of May associated with the onset of the Southeast Asian monsoon, and the calm wind region with frequent appearance of the surface high was seen around the Huaihe River Basin from late May to early June. Thus the present study shows that the Huaihe River Basin once experiences the rather drier stage just before the onset stage of the mature Meiyu there.
キーワード arid region in China and the Meiyu front seasonal evlution in East Asia Land surface condition around the Meiyu front
出版物タイトル Okayama University Earth Science Report
発行日 2005-12-31
12巻
1号
開始ページ 31
終了ページ 37
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310602
JaLCDOI 10.18926/ESR/13851
タイトル(別表記) ガーナ, ビルム・ダイヤモンド産地のアクァティア地域に分布する沖積層の重鉱物分析
フルテキストURL ESR_12_7.pdf
著者 Samuel Dampare| Daniel Asiedu| Bruce Banoeng-yakubo| 柴田 次夫|
抄録 Heavy mineral analysis was carried out on Pliocene to Recent alluvial sediments from the Birim diamondiferous field od Ghana. The main objective of the study was to examine the mineral composition of heavy fractions in order to identify : (1) the heavy mineral assenblage that occur in the sediments, (2) particular diamond indicator minerals associated with the diamonds, and (3) the provenance of the alluvial sediments. The heavy minerals are essentially composed of staurolite, ilmenite and magnetite in varying proportions, with trace amounts of leucoxene, rutile, garnet and zircon. The heavy mineral assenblage and chemical composition of ilmenite and gamet suggest their derivation from phyllites and schists which reflect directly the composition of the basement rocks developed in the study area. The absence of diamond indicatior minerals such as apatite, pyrope garmet, chromian spinel, and picroilmenite in the heavy fraction is unlikely to be due to their destruction during intense weathering and/or diagenesis but rarher their non-occurrence in the area.
キーワード Heavy minerals provenance sediments diamonds Ghana
出版物タイトル Okayama University Earth Science Report
発行日 2005-12-31
12巻
1号
開始ページ 7
終了ページ 14
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310657
JaLCDOI 10.18926/ESR/13850
タイトル(別表記) 沖縄トラフ第四与那国海丘海底熱水系チムニーの錫を含む黄銅鉱と白金を含む輝蒼鉛鉱
フルテキストURL ESR_12_1.pdf
著者 Gena, Kaul| 千葉 仁| 加瀬 克雄|
抄録 The active sulfide chimney ore sampled from the flank of the active Tiger chimney in the Yonaguni Knoll IV hydrothermal system, South Okinawa Trough, consists of anhydrite, pyrite, shalerite, galena, chalcopyrite and bismuthinite. Electron microprobe analyses indicated that the chalcopyrite and bismuthinite contain up to 2.4 wt. % Sn and 1.7 wt. % Pt, respectively. The high Sn-bearing chalcopyrite and Pt-bearing bismuthinite are the first occurrence of such minerals on the submarine hydrothermal systems so far reported. The results confirm that the Sn enters the chalcopyrite as a solid solution towards stannite by the coupled substitution of Sn 4+ Fe 2+ for Fe 3+ Fe 3+ while Pt enters the bismuthinite structure as a solid solution during rapid growth. The homogenization temperature of the fluid inclusions in anhydrite (220-310℃) and metasured end-member temperature of the vent fluids (325℃) indicate that the minerals are precipitated as metastable phases at temperature around 300℃. The Sn-bearing chalcopyrite and Pt-bearing bismuthinite expess the original composition of the minerals deposited from a hydrothermal fluid with temperatures of about 300℃.
キーワード Sn-bearing chalcopyrite Pt-bearing bismuthinite Active sulfide Chimmey Yonaguni Knoll IV Okinawa Trough seafloor hydrothermal system
出版物タイトル Okayama University Earth Science Report
発行日 2005-12-31
12巻
1号
開始ページ 1
終了ページ 5
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310444
フルテキストURL Ana_Sci_24_505.pdf
著者 Kunihiko Seno| Kazuki Matsumura| 大島 光子| 本水 昌二|
発行日 2008-04-10
出版物タイトル Analytical Sciences
24巻
4号
出版者 日本分析化学会
開始ページ 505
終了ページ 508
ISSN 0910-6340
NCID AA10500785
資料タイプ 学術雑誌論文
言語 英語
OAI-PMH Set 岡山大学
著作権者 日本分析化学会
論文のバージョン publisher
DOI 10.2116/analsci.24.505
JaLCDOI 10.18926/ESR/13844
タイトル(別表記) バングラディシュの更新世台地の地形と地質
フルテキストURL EAR_13_1_1.pdf
著者 Towhida Rashid| Md. hossain Monsur| 鈴木 茂之|
抄録 With regards to the origin and evolution of the Pleistocene tracts (Lalmai, Madhupur and Barind tracts) of Bangladesh, two trends of thoughts are common. Most of the authors believed that the Madhupur, Barind and Lalmai tracts represent tectonically uplifted surface. Some researchers have different opinion and they believed that the Lalmai hills and the Madhupur locality represent tectonically uplifted blocks but the whole Barind tract and the major portion of the Madhuput tracts are not tectonically uplifted, rather these are originated by erossional-depositional processes. In order to solve the problems associated with origin and evolution of Pleistocene tracts of Bangladesh, further study is needed. Borehole data may be collected and fusion images can be prepared from aerial photographs and setellite images to detect netectonic imprins and geomorphological signatures of the areas. Elaborate laboratory analysis of sediment deposits, radiocarbon dating my indicate a new dimension about the origin and evolution of these tracts.
キーワード Bangladesh Lalmai Hill Barind Tract Madhupur Tract Neotectonices Aerial photographs Satellite Image Fusion Image
出版物タイトル Okayama University Earth Science Report
発行日 2006-03-31
13巻
1号
開始ページ 1
終了ページ 13
ISSN 1340-7414
言語 英語
著作権者 岡山大学地球科学研究報告編集委員会
論文のバージョン publisher
NAID 120002310445
著者 Noguchi, Osamu| 大島 光子| 本水 昌二|
発行日 2008-05-10
出版物タイトル Analytical Sciences
24巻
5号
資料タイプ 学術雑誌論文
著者 小林 正直| 小林 淳一| 岩垣 博巳| 田中 紀章|
発行日 1999-02-28
出版物タイトル 岡山医学会雑誌
110巻
11-12号
資料タイプ 学術雑誌論文
著者 伊東 秀之| Marie-Paule Gonthier| Claudine Manach| Christine Morand| Louise Mennen| Christian Rémésy| Augustin Scalbert|
発行日 2005-10
出版物タイトル British Journal of Nutrition
94巻
4号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/13316
フルテキストURL 6_037_044.pdf
著者 榎本 悟|
抄録 As everybody knows, China is growing very rapidly since the opening of the country in 1978.The real Gross Domestic Product (GDP) of China in 2006 has more than 13 times larger than that of 1978. If we suppose the real GDP in 1978 is 100, then we can get 1335 in 2006. Also, the real growth rate of China is almost 10% annually during the same period ( Ke,2006) and people in the world are amazed to know it. It is often said that the sum of China's GDP will surpass Japan's within a decade or less, if China continues to grow. With the continuation of the growth of Chinese economy, many companies in the world, especially US, European and Japanese companies have already gone into China either to produce goods for exporting back to home country or to foreign countries (export market-oriented) or to produce goods for Chinese domestic market (domestic market-oriented) or both, in any case, exploiting the use of inexpensive labor forces. In fact, foreign countries, of course the main actors are multinational corporations (MNCs) , have heavily invested in China. For example, the total accumulated amount of foreign direct investment (FDI, stock base) from Japan to the world has amounted to $449.6bn. in 2006, of which China has received $30.3bn. (6.3%) , the fourth rank, following the U.S. ($156.4bn., 34.8%) , Holland ($45.4bn., 10.1%) , and U.K. ($31.6bn., 7.0%) . Even on the flow basis, China has received $63.0bn. of inward investment in 2006, of which the most important investing country to China is Hong Kong, totaling $20.2 bn. in 2006, followed by UK-held Virgin Island ($11.2 bnJ ,the second rank, Japan ($4.6bnJ ,the third rank, South Korea ($3.9bnJ and the U. S. ($2.7bn) . (China Statistical Yearbook 2007; JETRO White Paper: Trade and Investment 2007) Based on the above-mentioned facts, we consider the competitive situations among companies from different countries in China. Do they compete head-to-head? Or, do they compete in another way? Through the executives' perception on competition, we try to deal with how they feel their competitive situation in China, based on a questionnaire survey which was sent to Japanese executives in charge of managing manufacturing subsidiaries in China during September to October in 2004 to investigate how subsidiary executives feel their competitive situation there and what kind of strategy they should pursue in the coming years. This paper comprises 4 sections. The next section shows how we collected companies' data, operating in China, and what kind of criteria we have employed to do the research and the basic features of responding companies. The third section deals with the perception of executives on how they perceive their conditions of Chinese market in relation to the competition with their competitors. And we also introduce Porter's Five forces model to investigate why they feel about their market. The final section argues that we have to consider how Japanese executives respond to the competitive situation. Hence, a managerial implication will be discussed from the standpoint of Japanese executives.
出版物タイトル 北東アジア経済研究
発行日 2008
6巻
1号
開始ページ 37
終了ページ 44
ISSN 1880-8476
言語 英語
論文のバージョン publisher
NAID 120002310523
JaLCDOI 10.18926/13315
フルテキストURL 6_021_036.pdf
著者 Huang Shaoan| Gao Wei| Zhang Su| Huang Naijing|
抄録 This paper tries to measure the effect of cooperation on economic growth of both China and Japan by setting up an econometric model. This measuring is based on the basic framework of cooperation economics (Huang shao-an,2000) . The structure of the paper is as follows: The first part introduces the basic idea and analytical methods of cooperation economics; the second part establishes an econometric model for measuring the effect of cooperation on economic growth of both China and Japan; The third part measures degree of cooperation between China and Japan from two dimensions which are political factor and bilateral trade between China and Japan, and lists all the macroeconomic data that the econometric model needs; The fourth part employs the econometric model and the macroeconomic data to calculate the effect of cooperation on economic growth of both China and Japan; the final part is a brief conclusion.
出版物タイトル 北東アジア経済研究
発行日 2008
6巻
1号
開始ページ 21
終了ページ 36
ISSN 1880-8476
言語 英語
論文のバージョン publisher
NAID 120002310579
JaLCDOI 10.18926/13307
タイトル(別表記) 在日留学生による第二・第三言語の使用における日本的文脈の役割
フルテキストURL 25_045_059.pdf
著者 田中 共子| Simic Mira|
出版物タイトル 岡山大学大学院社会文化科学研究科紀要
発行日 2008-03-31
25巻
1号
開始ページ 45
終了ページ 59
ISSN 18811671
言語 英語
著作権者 岡山大学大学院社会文化科学研究科
論文のバージョン publisher
NAID 120002310597
JaLCDOI 10.18926/bgeou/13298
フルテキストURL 136_085_092.pdf
著者 福永 信哲| Zhang Bin|
キーワード political slogans CDA (critical discourse analysis) depth hermeneutical methodology ideology culture
出版物タイトル 岡山大学教育学部研究集録
発行日 2007-10-25
136巻
開始ページ 85
終了ページ 92
ISSN 0471-4008
言語 英語
論文のバージョン publisher
NAID 120002310373
JaLCDOI 10.18926/bgeou/13293
タイトル(別表記) An Analysis of Pluralized Abstract Nouns: With Special Reference to Richardson's Epistolary Novels
フルテキストURL 138_033_043.pdf
著者 脇本 恭子|
抄録 Unlike Japanese, English makes a clear distinction between 'singular' and 'plural' by grammatical nleans. Although the concept of plural should logically be applied to countable nouns, there are quite a few examples found in actual use of the language where an uncountable noun takes a plural form. Some abstract nouns can be pluralized to denote individualized meanings or components, while others may be pluralized to emphasize the quality, condition or degree. The latter type is specifically called 'intensive plural' (or 'emotional plural' by some scholars). This article discusses the use of the plural of abstract nouns mainly through a corpus-based analysis of the three epistolary novels by Sanluel Richardson who is supposed to have given a remarkable influence on sentimental literature.
キーワード 抽象名詞 強意複数 Richardson sentimentalism ness
出版物タイトル 岡山大学教育学部研究集録
発行日 2008-06-25
138巻
開始ページ 33
終了ページ 43
ISSN 0471-4008
言語 日本語
論文のバージョン publisher
NAID 120002310222
JaLCDOI 10.18926/13239
フルテキストURL 24_027_033.pdf
著者 吉岡 文夫|
出版物タイトル 岡山大学大学院社会文化科学研究科紀要
発行日 2007-11
24巻
1号
開始ページ 27
終了ページ 33
言語 英語
著作権者 岡山大学大学院社会文化科学研究科
論文のバージョン publisher
NAID 120002310566
JaLCDOI 10.18926/13238
フルテキストURL 24_011_025.pdf
著者 田原 伸子|
抄録 This paper analyses an English text in ternlS of major English text patterns, general-specific, claim-counterclainl/hypothetical-real and problem-solution, by making use of 'signaling vocabulary' that has the role of indicating the functional segments of the patterns. The results, by supporting a discourse role of signaling vocabulary, exhibited a mix of the three patterns, with some kind of a variation from a typical pattern, in the overall and subordinate structures. At the same time the analysis made clear that some vocabulary items, such as superordinates and advance labels, have a discourse marking role and help create the text patterns. The results suggest discourse-based vocabulary teaching can be used for raising students' awareness of English text patterns.
出版物タイトル 岡山大学大学院社会文化科学研究科紀要
発行日 2007-11
24巻
1号
開始ページ 11
終了ページ 25
言語 英語
著作権者 岡山大学大学院社会文化科学研究科
論文のバージョン publisher
NAID 120002310504
著者 CHUANUWATANAKUL Suchada|
発行日 2008-03-25
出版物タイトル
資料タイプ 学位論文
JaLCDOI 10.18926/fest/12837
フルテキストURL 13_121_124.pdf
著者 高口 豊| 柳本 泰|
抄録 Amphiphilic anthryl dendrons 5 and 6, which have carboxylate groups or oligo(ethyleneoxide) groups at the terminals, show solvatochromic properties. Reaction efficiency of photodimerization and dynamic light scattering (DLS) experiment of 5 and 6 reveal that formation of the aggregate of dendrons 5 or 6 plays a crucial role in this solvatochromism. Interestingly, solvatochromic property of anthryl dendron 6 was useful for determination of the ratio of methanol/water in solution as a fluorescent probe.
キーワード dendrimer anthracene fluorescence solvatochromism water methanol
出版物タイトル 岡山大学環境理工学部研究報告
発行日 2008-03
13巻
1号
開始ページ 121
終了ページ 124
ISSN 1341-9099
言語 英語
論文のバージョン publisher
NAID 120002304793