1999 年度実績報告書

インド亜大陸原生代変動帯の構造・岩石・年代の研究(IGCP368の総括)

研究課題

研究課題/領域番号	11304031
研究種目	基盤研究(A)
研究機関	大阪市立大学
研究代表者	吉田勝大阪市立大学, 理学部, 教授 (30047112)
研究分担者	奥平敬元大阪市立大学, 理学部, 教授 (20295679) 有馬真横浜国立大学, 教育学部, 助教授 (10184293) 古山勝彦大阪市立大学, 理学部, 教授 (10112525) 加々美寛雄新潟大学, 大学院・理学研究科, 助教授 (20108179) 小山内康人岡山大学, 教育学部, 教授 (80183771)
キーワード	インド楯状地 / インド中央構造帯 / 原生代変動帯ト / ゴンドワナランド / アラヴァリ・デリー帯 / 東ガート帯 / サコーリ帯
研究概要	第8回国際南極地学シンポジウム(NZ),内陸変動帯シンポジウム(豪州)、IGCP-368中国研究集会(宣昌)参加、及びインド科学者の日本招聘により、東ゴンドワナの原生代事件に関する世界の研究動向に関する情報を得ることができた。また、インド中央構造帯の地質野外資料の収集、サウディアラビアにおけるフィールドワークショップ準備も行われた。科学研究費補助金はほぼ当初の予定に従って全額が効率的に使用され、当初予定の研究成果を得ることができた。主な研究成果を下の記す。 (1)インド中央構造帯(CITZ)はA.北西部のインド北楯状地西縁のアラバリ・デリー帯、B.中央部の南北インド楯状地の間を走る狭義のCITZと、C.南東部のインド南楯状地東縁の東ガート帯に区分される。それぞれの地帯はさらに、その地帯構造に平行して2帯あるいは3帯の特徴ある構造分帯が認められる。この巨大構造区分・構造分帯の、ゴンドワナテクトニクスにおける意味について検討中である。 (2)アラバリ・デリー帯と狭義のCITZに関する年代学および岩石学研究は大変に遅れていることがわかった。このため、北部デリー帯の花崗岩の岩石学的年代学的研究と、CITZ中央部サコーリ帯とサウサー帯の年代学的研究を開始した。花崗岩類からは、メソ原生代のモナザイト化学年代を、サコーリ帯の塩基性岩から、約30億年と23億年のSm-Nd同位体年代を得た。 (3)東ガート帯で最近確認された14億年、10億年、8億年、5億年の年代の意味について、研究者間の解釈が異なっており、変形・変成事件史と同位体年代の結び付けについて詳しい吟味が開始されたところである。この吟味については、ジルコンやモナザイトのEPMA化学年代法が効果的であると判断され、この手法の確立に向けて努力中である。

研究成果

(33件)

すべてその他

すべて文献書誌 (33件)

[文献書誌] Chandrajith, R. et al., including Dissanayake, C.B.: "The stream sediment geochemistry of the Walawe Ganga Basin of Sri Lanka - Implications for Gondwana mineralization"Gondwana Research. Vol.3(2). 189-204 (2000)
[文献書誌] 千葉仁ほか(益田晴恵を含む): "大西洋TAG及びRainbow海底熱水系の熱水の化学組成: MODE'98Legの結果"JASMSTIEC深海研究. Vol.15(11). 29-38 (1999)
[文献書誌] Das. K., et al., including Yoshida, M.: "A report of the post-conference field trip in the Eastern Arunta Inlier, Central Australia"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 271-274 (2000)
[文献書誌] Das. K., et al., including Yoshida, M.: "Geology and tectonic evolution of Strangways and Harts Range region of eastern Arungta Inlier, central Australia"Jour. Geosci., Osaka City University. Vol.43(印刷中). (2000)
[文献書誌] Divi, R.S. (研究協力者): "Progress report of Working Grouip II-C of IGCP-368: Mineral potential by geomatics"Gondwana Research (Gondwana News Letter). Vol.2(4). 670-670 (1999)
[文献書誌] Han, B. et al., including Kagami, H.: "Trace element and Nd-Sr isotope constraints on origin of the Chifeng flood basalts North China"Chemical Geol.. Vol.155. 187-199 (1999)
[文献書誌] Hari, K.R. et al., including Furuyama, K.: "Silicate-melt inclusioins in pyroxene and plagioclase phenocrysts from the Pavagadh Igneous Site, India"Jour. Geosciences, Osaka City University. Vol.43(印刷中). (2000)
[文献書誌] Hari, K.R. et al., including Furuyama, K.: "The Pavagadh Hill, a unique outcrop of the Deccan Trap, Gujarat, India"Gondwana Research (Gondwana News Letter). Vol.2(4). 676-678 (1999)
[文献書誌] Kokonyangi, J. et al., including Yoshida, M.: "Lithostratigraphy and structural evolution of the Kalima-Moga tin district, Kibaran Belt (maniema, Congo)"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 257-259 (2000)
[文献書誌] Lee, J.I. et al., including Kagami, H.: "Sr and Nd isotopic vompositioins of late Paleozoic Youungiu and Andong granites in the northeastern Yeongnam Massif, Korea"Geochem. Jour.. Vol.33. 153-165 (1999)
[文献書誌] Morris, P.A. et al., including Furuyama, K.: "Chronology and petrology of the Daikonjima basalt, Nakaumi Lagoon, eastern Shimane Prefecture, Japan"Jour. Min. Petrol. Econ. Geol.. Vol.94. 442-452 (1999)
[文献書誌] Nishi, N. et al., including Kagami, H.: "Preliminary result for the Rb-Sr mineral isochron ages of granitic rocks from Cape Omega and Oku-iwa Rock, Prince Olav Coast, Eastd PAntarctica"Polar Geoscience. No.12. 157-165 (1999)
[文献書誌] 小原春産他(有馬真を含む): "海洋性島弧における大陸地殻の形成:吸収パラオ海嶺掘削計画"月刊地球. 23巻. 133-140 (1999)
[文献書誌] Okudaira, T., et al.: "Proterozoic evolution of the Nellore-Khammam Schist Belt in the Khammam district, SE India"Jour. Geosci., Osaka City University. Vol.43(印刷中). (2000)
[文献書誌] 奥平敬元: "領家帯変成帯からみた西南日本白亜紀テクトニクス"地団研専報. (印刷中). (2000)
[文献書誌] Osanai, Y. et al.: "Rb-Sr and Sm-Nd for potassium feldspar megacrystic charnockite pegmatite and garne t-bearing charnockittic leaucosome from the central Eastern Ghats. India"Gondwana Research Mem.. No.5. 145-160 (1999)
[文献書誌] Owada, M. et al. including: "Petrography and geochemistry of for mafic rocks from Tonagh Island, Nepier Complex, Enderby Land"Polar Geosci.. No.12. 87-100 (1999)
[文献書誌] Santosh, M.: "A molybdenium province in the East Gondwanaland Fragment of southern India"Gondwana Research. Vol.2(4). 606-607 (1999)
[文献書誌] 田納庄良昭ほか(加々美寛雄を含む): "高Sr同位体始生値を有する近畿地方の白亜紀〜古第三紀花崗岩類"地質学論集. 53号. 309-322 (1999)
[文献書誌] Toyoshima, T. et al., including Osanai, Y.: "Deformation of ultra-high-temperature metamorphic rocks from Tonagh Island, Napier Complex, East Antarctica"Polar Geosci.. No.12. 29-48 (1999)
[文献書誌] Yoshida, M.: "Field visit to the Ribeira Fold Belt, 1999"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 275-277 (2000)
[文献書誌] Yoshida, M., et al.: "Juxtaposition of India and Madagascar: A perspective"Gondwana Research. Vol.2(3). 449-462 (1999)
[文献書誌] Yoshida, M., et al.: "Five years' activity of IGCP-368 "Proterozoic Events in East Gondwana""Gondwana Research. Vol.2(4). 638-641 (1999)
[文献書誌] Yoshida, M., et al.: "Proterozoic Events in East Gondwana: Progress in 1998"Gondwana Research (Gondwana News Letter). Vol.2(4). 665-667 (1999)
[文献書誌] Yoshida, M., et al.: "IGCP-368: activities and future programme"Gondwana Research (Gondwana News Letter). Vol.2(4). 667-669 (1999)
[文献書誌] Yoshida. M., et al.: "Proterozoic events in East Gondwana, progress in 1999"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 253-255 (2000)
[文献書誌] Yoshida, M., et al.: "Neodymium model ages from Eastern Ghats and lutzow-Holm Bay: Constraints on isotopic provinces in India-Antarctic sector of East Gondwana"Gondwana Research Group Mem.. No.5(印刷中). (2000)
[文献書誌] Yoshida, M., et al.: "Pre-Pan African and Pan-African events in South India and their implications for Gondwana tectonics"Geol. Survey of India, Misl. Publ.. (Accepted for publication)(印刷中).
[文献書誌] Rao, A.T. et al. (eds) including Yoshida, M.: "Eastern Ghats Mobile Belt: Structural, Petrological and Geochronological Studies Gondwana Research Group Memoir No.5"Field Science Publishers. (2000)
[文献書誌] Yoshida, M. et al. (eds): "Madagascar Within Gondwanaland (Gondwana Research Vol.2, No.3, special issue)"International Association for Gondwana Research. 170 (1999)
[文献書誌] Wang, X. et al. (eds)(研究協力者): "Geodynamic and Tectonic Evolution of China and Related Gondwana Crustal Fragment"International Association for Gondwana Research. 140 (1999)
[文献書誌] Jain, A. K. et al. (eds)(研究協力者): "Geodynamics of the NW Himalaya"Field Science Publishers (Osaka). 377 (1999)
[文献書誌] Geological Survey of India and IGCP-368 (eds)(研究協力者): "Precambrian Crust in Eastern and Central India, Geological Survey Miscellaneous Publication"Geological Survey of India (Calcutta) (印刷中). 537 (2000)

1999 年度 実績報告書

インド亜大陸原生代変動帯の構造・岩石・年代の研究(IGCP368の総括)

研究代表者

吉田 勝 大阪市立大学, 理学部, 教授 (30047112)

研究成果

[文献書誌] Chandrajith, R. et al., including Dissanayake, C.B.: "The stream sediment geochemistry of the Walawe Ganga Basin of Sri Lanka - Implications for Gondwana mineralization"Gondwana Research. Vol.3(2). 189-204 (2000)

[文献書誌] 千葉仁ほか(益田晴恵を含む): "大西洋TAG及びRainbow海底熱水系の熱水の化学組成: MODE'98Legの結果"JASMSTIEC深海研究. Vol.15(11). 29-38 (1999)

[文献書誌] Das. K., et al., including Yoshida, M.: "A report of the post-conference field trip in the Eastern Arunta Inlier, Central Australia"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 271-274 (2000)

[文献書誌] Das. K., et al., including Yoshida, M.: "Geology and tectonic evolution of Strangways and Harts Range region of eastern Arungta Inlier, central Australia"Jour. Geosci., Osaka City University. Vol.43(印刷中). (2000)

[文献書誌] Divi, R.S. (研究協力者): "Progress report of Working Grouip II-C of IGCP-368: Mineral potential by geomatics"Gondwana Research (Gondwana News Letter). Vol.2(4). 670-670 (1999)

[文献書誌] Han, B. et al., including Kagami, H.: "Trace element and Nd-Sr isotope constraints on origin of the Chifeng flood basalts North China"Chemical Geol.. Vol.155. 187-199 (1999)

[文献書誌] Hari, K.R. et al., including Furuyama, K.: "Silicate-melt inclusioins in pyroxene and plagioclase phenocrysts from the Pavagadh Igneous Site, India"Jour. Geosciences, Osaka City University. Vol.43(印刷中). (2000)

[文献書誌] Hari, K.R. et al., including Furuyama, K.: "The Pavagadh Hill, a unique outcrop of the Deccan Trap, Gujarat, India"Gondwana Research (Gondwana News Letter). Vol.2(4). 676-678 (1999)

[文献書誌] Kokonyangi, J. et al., including Yoshida, M.: "Lithostratigraphy and structural evolution of the Kalima-Moga tin district, Kibaran Belt (maniema, Congo)"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 257-259 (2000)

[文献書誌] Lee, J.I. et al., including Kagami, H.: "Sr and Nd isotopic vompositioins of late Paleozoic Youungiu and Andong granites in the northeastern Yeongnam Massif, Korea"Geochem. Jour.. Vol.33. 153-165 (1999)

[文献書誌] Morris, P.A. et al., including Furuyama, K.: "Chronology and petrology of the Daikonjima basalt, Nakaumi Lagoon, eastern Shimane Prefecture, Japan"Jour. Min. Petrol. Econ. Geol.. Vol.94. 442-452 (1999)

[文献書誌] Nishi, N. et al., including Kagami, H.: "Preliminary result for the Rb-Sr mineral isochron ages of granitic rocks from Cape Omega and Oku-iwa Rock, Prince Olav Coast, Eastd PAntarctica"Polar Geoscience. No.12. 157-165 (1999)

[文献書誌] 小原春産他(有馬真を含む): "海洋性島弧における大陸地殻の形成:吸収パラオ海嶺掘削計画"月刊地球. 23巻. 133-140 (1999)

[文献書誌] Okudaira, T., et al.: "Proterozoic evolution of the Nellore-Khammam Schist Belt in the Khammam district, SE India"Jour. Geosci., Osaka City University. Vol.43(印刷中). (2000)

[文献書誌] 奥平敬元: "領家帯変成帯からみた西南日本白亜紀テクトニクス"地団研専報. (印刷中). (2000)

[文献書誌] Osanai, Y. et al.: "Rb-Sr and Sm-Nd for potassium feldspar megacrystic charnockite pegmatite and garne t-bearing charnockittic leaucosome from the central Eastern Ghats. India"Gondwana Research Mem.. No.5. 145-160 (1999)

[文献書誌] Owada, M. et al. including: "Petrography and geochemistry of for mafic rocks from Tonagh Island, Nepier Complex, Enderby Land"Polar Geosci.. No.12. 87-100 (1999)

[文献書誌] Santosh, M.: "A molybdenium province in the East Gondwanaland Fragment of southern India"Gondwana Research. Vol.2(4). 606-607 (1999)

[文献書誌] 田納庄良昭ほか(加々美寛雄を含む): "高Sr同位体始生値を有する近畿地方の白亜紀〜古第三紀花崗岩類"地質学論集. 53号. 309-322 (1999)

[文献書誌] Toyoshima, T. et al., including Osanai, Y.: "Deformation of ultra-high-temperature metamorphic rocks from Tonagh Island, Napier Complex, East Antarctica"Polar Geosci.. No.12. 29-48 (1999)

[文献書誌] Yoshida, M.: "Field visit to the Ribeira Fold Belt, 1999"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 275-277 (2000)

[文献書誌] Yoshida, M., et al.: "Juxtaposition of India and Madagascar: A perspective"Gondwana Research. Vol.2(3). 449-462 (1999)

[文献書誌] Yoshida, M., et al.: "Five years' activity of IGCP-368 "Proterozoic Events in East Gondwana""Gondwana Research. Vol.2(4). 638-641 (1999)

[文献書誌] Yoshida, M., et al.: "Proterozoic Events in East Gondwana: Progress in 1998"Gondwana Research (Gondwana News Letter). Vol.2(4). 665-667 (1999)

[文献書誌] Yoshida, M., et al.: "IGCP-368: activities and future programme"Gondwana Research (Gondwana News Letter). Vol.2(4). 667-669 (1999)

[文献書誌] Yoshida. M., et al.: "Proterozoic events in East Gondwana, progress in 1999"Gondwana Research (Gondwana News Letter No.14). Vol.3(2). 253-255 (2000)

[文献書誌] Yoshida, M., et al.: "Neodymium model ages from Eastern Ghats and lutzow-Holm Bay: Constraints on isotopic provinces in India-Antarctic sector of East Gondwana"Gondwana Research Group Mem.. No.5(印刷中). (2000)

[文献書誌] Yoshida, M., et al.: "Pre-Pan African and Pan-African events in South India and their implications for Gondwana tectonics"Geol. Survey of India, Misl. Publ.. (Accepted for publication)(印刷中).

[文献書誌] Rao, A.T. et al. (eds) including Yoshida, M.: "Eastern Ghats Mobile Belt: Structural, Petrological and Geochronological Studies Gondwana Research Group Memoir No.5"Field Science Publishers. (2000)

[文献書誌] Yoshida, M. et al. (eds): "Madagascar Within Gondwanaland (Gondwana Research Vol.2, No.3, special issue)"International Association for Gondwana Research. 170 (1999)

[文献書誌] Wang, X. et al. (eds)(研究協力者): "Geodynamic and Tectonic Evolution of China and Related Gondwana Crustal Fragment"International Association for Gondwana Research. 140 (1999)

[文献書誌] Jain, A. K. et al. (eds)(研究協力者): "Geodynamics of the NW Himalaya"Field Science Publishers (Osaka). 377 (1999)

[文献書誌] Geological Survey of India and IGCP-368 (eds)(研究協力者): "Precambrian Crust in Eastern and Central India, Geological Survey Miscellaneous Publication"Geological Survey of India (Calcutta) (印刷中). 537 (2000)

1999 年度実績報告書

吉田勝大阪市立大学, 理学部, 教授 (30047112)