2014 Fiscal Year Final Research Report
Study of the tsunami history that attacked the Wakasa Bay area.
| Project/Area Number |
24540487
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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 | University of Fukui |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
FUJII Junko 福井大学, 教育地域科学部, 助手 (50228946)
YASUDA Masashige 福井工専, 環境都市工学科, 助教 (60353273)
OKAMOTO Takuo 福井工専, 一般化目教室, 教授 (50185477)
TONOOKA Shinichiro 敦賀短期大学, 地域総合科学科, 教授
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 津波堆積物 / 若狭湾 / 高浜町 / トレンチ / コアリング |
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| Outline of Final Research Achievements |
Some sand layers which may be formed by the tsunami event were found in the peaty deposits under the coastal lowland in Sonobe area, Takahama-cho, Fukui Prefecture.
The coring and trench survey shows that the sand layers are distributed more than 500m to the inland form the shore. The sand include grains of the well-rounded rock fragments and organic remains such as shell, foraminifera and spine of the sea urchin, which are a lot included in the coastal sand of this area. In addition, the sand layers eroded the peaty sediments at the base, and include the rip-up clast of them.
The radiocarbon dates of the peaty sediments below and above the sand layer show that the layers deposited between the 14th and the 16th century.
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| Free Research Field |
地質学，第四紀学
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