2013 Fiscal Year Final Research Report
Tsunami depositinal models in coastal lowland over sand dune
| 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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| 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 |
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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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[Presentation] 北海道南西部奥尻島で認められた津波堆積物の堆積学的特徴2014
Author(s)
加瀬善洋, 仁科健二, 林圭一, 川上源太郎, 輿水健一, 髙清水康博, 嵯峨山積, 渡邊達也, 高橋良, 廣瀬亘, 大津直, 石丸聡, 深見浩司, 田近淳, 卜部厚志
Organizer
日本堆積学会2014年山口大会
Place of Presentation
山口市山口大学(口頭)
Year and Date
20140300
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