2010 Fiscal Year Final Research Report
Displacement range of Cretaceous MTL and a solution for terrane duplication problem of SW-Japan.
| Project/Area Number |
20540445
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Hiroshima University |
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Principal Investigator |
HAYASAKA Yasutaka Hiroshima University, 大学院・理学研究科, 助教 (10198830)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 中央構造線 / 白亜紀 / 横ずれ変位 / ジルコン / SHRIMP / EPMA-Dating / LA-ICP-MS / 西南日本 |
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| Research Abstract |
Displacement rage of MTL was estimated by the provenance analysis using detrital zircon chronology for the Pre-Cretaceous formations in SW-Japan. Zircons from Jurassic accretionary complex in the Inner zone of SW Japan have distinct age cluster at around 1800Ma showing North China origin. While zircons from Outer zone consist mainly of younger generation less than 300Ma. This difference can be traced from western Kyushu to northern Aichi Prefecture. From this, the displacement range of MTL should be larger than 800km.
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[Journal Article] Discovery high-pressure granulite-facies metamorphism in northern Vietnam : constraints on the permo-Triassic Indochinese continental collision tectonics.2008
Author(s)
Nakano, N., Osanai, Y., Nguyen Thi Minh, Miyamoto, T., Hayasaka, Y., Owada, M.
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Journal Title
Comptes Rendus Geoscience vol.340
Pages: 127-138
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[Presentation]2009
Author(s)
早坂康隆, 宮本隆實, 他3名
Organizer
三郡-中国帯の二帯並列構造の成因
Place of Presentation
岡山市,岡山理科大学
Year and Date
20090904-20090906
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[Remarks] ホームページ等
