2015 Fiscal Year Final Research Report
Cuttings-based research for assessing evolution of the megasplay fault in the Nankai Trough
| Project/Area Number |
25800278
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Geology
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| Research Institution | The University of Tokyo |
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Principal Investigator |
|
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| Research Collaborator |
FUKUCHI Rina
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | カッティングス / 南海トラフ / 付加体 / 分岐断層 / ビトリナイト / ジルコン |
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| Outline of Final Research Achievements |
We analyzed maximum burial temperature and detrital zircon U-Pb ages of cuttings samples retrieved from the Integrated Ocean Drilling Program (IODP) Site C0002 in the Nankai Trough. As a result, we found ancient megasplay faults which cause the reversals of vitrinite reflectance values and detrital zircon age. Estimated maximum temperature is slightly lower than extrapolated modern temperature, suggesting that large-scale uplifting of the hanging wall side of the megasplay fault have not occurred in the Nankai Trough.
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| Free Research Field |
構造地質学
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