Deciphering dimensions of the Miocene Large-scale Submarine fans in Shikoku Basin
| Project/Area Number |
26610161
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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 |
Geology
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| Research Institution | Kyoto University |
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Principal Investigator |
Naruse Hajime 京都大学, 理学(系)研究科(研究院), 准教授 (40362438)
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| Co-Investigator(Kenkyū-buntansha) |
Park Jin-Oh 東京大学, 大気海洋研究所, 准教授 (70359199)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 地質学 / 地震波探査 / 海底扇状地 / 南海トラフ / 中新世 / 西南日本 / 四国海盆 / タービダイト / 混濁流 / 砕屑物供給 / 日本海拡大 / フィリピン海プレート |
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| Outline of Final Research Achievements |
This study revealed dimensions of the Miocene Large-scale Submarine fans in Shikoku Basin, which develops from 15 to 11 Ma and extend 800 km offshore, and are more than 300 m in thickness. This is one of the largest dimensions of submarine fans in active margins. In addition, this study produced a theoretical model of submarine fans, and estimated that the submarine fans in the Miocene Shikoku Basin were formed by turbidity currents that is composed mainly of muddy sediments (>90 %). This implies that the chemical weathering and denudation are remarkably active in the provenance of the submarine fans.
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Report
(3 results)
Research Products
(14 results)
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[Journal Article] Stratigraphic variations in lacustrine sediment gravity-flow deposits intercalated in varved diatomite: An example from the Hiruzenbara Formation, Okayama Prefecture, southwest Japan2015
Author(s)
Sasaki, H., Sasaki, Y., Saito-Kato, M., Naruse, H., Yumi, M., & Ishihara, Y.
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Journal Title
Quarternary International
Volume: 397
Pages: 208-222
DOI
Related Report
Peer Reviewed
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[Journal Article] Devonian–Carboniferous transition containing a Hangenberg Black Shale equivalent in the Pho Han Formation on Cat Ba Island, northeastern Vietnam.2014
Author(s)
Toshifumi Komatsu, Satoru Kato, Kento Hirata, Reishi Takashima, Yukari Ogata, Masahiro Oba, Hajime Naruse, Phuong H. T, Phong D. Nguyen, Huyen T. Dang, Truong N. Doan, Hung H. Nguyen, Susumu Sakata, Kunio Kaiho, Peter Königshof
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Journal Title
Palaeogeography, Palaeoclimatology, Palaeoecology
Volume: 404
Pages: 30-43
Related Report
Peer Reviewed
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[Journal Article] Large volume submarine ignimbrites in the Shikoku Basin: An example for explosive volcanism in the Western Pacific during the Late Miocene.2014
Author(s)
Steffen Kutterolf, Julie C. Schindlbeck, Rachel P. Scudder, Richard W. Murray, Kevin T. Pickering, Armin Freundt, Shasa Labanieh, Ken Heydolph, Sanny Saito, Hajime Naruse, Michael B. Underwood, and Huaichun Wu
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Journal Title
Geochemistry, Geophysics, Geosystems
Volume: 15.5
Pages: 1837-1851
Related Report
Peer Reviewed
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[Journal Article] Lower Triassic mixed carbonate and siliciclastic setting with Smithian–Spathian anoxic to dysoxic facies, An Chau basin, northeastern Vietnam.2014
Author(s)
Toshifumi Komatsu, Hajime Naruse, Yasunari Shigeta, Reishi Takashima, Takumi Maekawa, Huyen T. Dang, Tien C. Dinh, Phong D. Nguyen, Hung H. Nguyen, Gengo Tanaka, Masatoshi Sone
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Journal Title
Sedimentary Geology
Volume: 300
Pages: 28-48
Related Report
Peer Reviewed
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