2015 Fiscal Year Final Research Report
Why the Permian accretionary complex of Japan was formed ?
| Project/Area Number |
25400487
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Yamaguchi University |
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Principal Investigator |
WAKITA KOJI 山口大学, 理工学研究科, 教授 (80358366)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 付加体 / メランジュ / 海洋プレート層序 / 放散虫化石 / 砕屑性ジルコン年代 / マンガン炭酸塩岩 / 秋吉帯 / 超丹波帯 |
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| Outline of Final Research Achievements |
The radiolarian age dating and detrital zircon age dating revealed two types of lithostratigraphic units in the Nishiki Group of the Akiyoshi Belt. New stratigraphic sequences of chert breccia are recognized in the Yoshiki Group, eastern Hiroshima. The Ultra Tamba Belt of the Obama area is underlain by the melange and coherent units, while the one of the estern Okayama contains highly disrupted slump deposits. The detrital zircon dating and sedimentary petrology on sandstones show that different ages of Late Paleozoic volcanic activities, which provide detrital sediments to the Akiyoshi, Ultra Tamba and Maizuru Belts.
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| Free Research Field |
層序学
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