Mili-microscale chemical analysis of tsunami deposits in Japan
| Project/Area Number |
25630410
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Japan Atomic Energy Agency (2014-2015)
Tohoku University (2013) |
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Principal Investigator |
Watanabe Takahiro 国立研究開発法人日本原子力研究開発機構, バックエンド研究開発部門 東濃地科学センター, 研究職 (40436994)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 津波堆積物 / 災害科学 / 地球化学 / 分析化学 / 土壌 / 東北地方 / 災害科学研究 / 歴史津波堆積物 / 地球化学判別 / 湖沼堆積物 |
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| Outline of Final Research Achievements |
To estimate past tsunami inundation area, we performed radiocarbon dating of plant fossils and inorganic geochemistry of tsunami deposits in lake and soil sediments from eastern Japan (Aomori, Miyagi and Shizuoka). The radiocarbon dating of the plant fossils were measured by accelerator mass spectrometry. Inorganic chemical analyses of tsunami deposit (about 1000-3000 cal BP) were carried out using X-ray fluorescence spectrometry, X-ray analytical microscope system and laser ablation inductively coupled plasma mass spectrometry. High sodium/titanium atomic ratios (more than 12) in tsunami deposits and enrichment arsenic just below the deposits were observed in this study. This study showed that chemical component (sodium, titanium, strontium, rubidium, barium, sulfur, arsenic) could be useful indicator for past tsunami deposits.
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Report
(4 results)
Research Products
(33 results)
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[Presentation] 津波堆積物の年代測定と地球化学2015
Author(s)
渡邊隆広, 細田憲弘, 土屋範芳, 山崎慎一, 奈良郁子, 中村俊夫, 東北大学歴史津波調査グループ
Organizer
第17回AMSシンポジウム
Place of Presentation
つくば
Year and Date
2015-03-02 – 2015-03-03
Related Report
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[Presentation] 無機化学組成にもとづく歴史津波堆積物の供給源推定2014
Author(s)
渡邊隆広, 土屋範芳, 山崎慎一, 細田憲弘, 澤井祐紀, 駒井 武, 中村俊夫, 奈良郁子, 東北大学津波堆積物調査グループ
Organizer
日本第四紀学会2014年大会
Place of Presentation
柏
Year and Date
2014-09-06 – 2014-09-08
Related Report
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[Presentation] Inorganic geochemistry and 14C age dating of past tsunami deposits from Tohoku area, northeast Japan2014
Author(s)
T. Watanabe, N. Hosoda, N. Tsuchiya, T. Nakamura, S. Yamasaki, R. Yamada, F.W. Nara, T. Komai
Organizer
11th International Workshop on WATER DYNAMICS, Deep Carbon Cycle
Place of Presentation
Sendai, Japan
Related Report
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[Presentation] 仙台平野・静岡平野における津波堆積物の汚染評価と化学判別2013
Author(s)
渡邊隆広, 土屋範芳, 井上千弘, 北村晃寿, 駒井 武, 山崎慎一, 山田亮一, 平野伸夫, 岡本 敦, 細田憲弘, 奈良郁子
Organizer
日本鉱物科学会2013年 年会
Place of Presentation
つくば
Related Report
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[Presentation] Geochemical discrimination of tsunami sediments in Tohoku and Shizuoka area, Japan2013
Author(s)
T. Watanabe, N. Tsuchiya, C. Inoue, A. Kitamura, T. Komai, S. Yamasaki, R. Yamada, N. Hirano, A. Okamoto, F.W. Nara, Tohoku Tsunami Sediment Research Group
Organizer
2013 Golodschmidt Conference
Place of Presentation
Florence, Italy
Related Report
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