Estimation of hydraulic conditions of turbidity currents by inverse analysis
| Project/Area Number |
20740297
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Stratigraphy/Paleontology
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| Research Institution | Chiba University |
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Principal Investigator |
NARUSE Hajime Chiba University, 大学院・理学研究科, 准教授 (40362438)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | シーケンス層序学 / 地質学 / 堆積学 / 海洋探査 |
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| Research Abstract |
A method to estimate hydraulic conditions of turbidity currents from grain-size distribution of turbidite sandstones was established. The one-dimensional mixed grain-size model of turbidity currents was used as a forward model for the analysis, and the optimizing calculation of the model for reproducing grain-size distribution measured in the sandstone bed enabled to estimate paleo-hydraulic conditions of turbidity currents with high accuracy. The method developed in this study was applied to a turbidite bed in the Pleistocene Otadai Formation, and the velocity and sediment concentration of the turbidity current was successfully reconstructed.
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Report
(4 results)
Research Products
(46 results)
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[Presentation] 中新世における四国海盆の半遠洋性泥堆積速度の急変と西南日本島弧テクトニクス2010
Author(s)
成瀬元・Pickering Kevin T.・Scudder Rachel・Kutterolf Steffen・Labanieh Shasa・Wu Huaichun・小田啓邦・Zhao Xixi・千代延俊・Govil Pawan・中嶋健・Underwood Michael B.・斎藤実篤・久保雄介
Organizer
日本地質学会第117年学術大会IODP Exp.322 Shipboard Scientific Party
Place of Presentation
富山大会
Related Report
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