| Project/Area Number |
24740341
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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 | Niigata University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 津波堆積物 / 古流向 / 粒度分析 / 磁気ファブリック / 2011年（平成23年）東北地方太平洋沖地震 / 粒子配列 / 陸前高田 / 名取川 / AMSファブリック / 古流向解析 / 17世紀巨大津波 / 胆振 / 東北地方 |
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| Research Abstract |
The 2011 off the Pacific coast of Tohoku Earthquake (Mw 9.0) that occurred on 11 March 2011 generated a large tsunami that inundated several kilometers inland. In this study, we attempted to reconstruct the mega-tsunami behavior in coastal lowland with sand dune by sedimentary analyses (visual description, grain-size distribution, and magnetic fabric) in Sendai city of Miyagi Prefecture, Rikuzen-takata city of Iwate Prefecture, and Hidaka town of Hokkaido Prefecture. We could read the detailed flow changes of the tsunami using the sedimentary analysis of the tsunami deposits at Sendai and Rikuzen-takata cities. Therefore, it was revealed that reconstruction of tsunami behavior can be performed using the detailed sedimentary analyses of tsunami deposits.
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