New picture of mantle dynamics
| Project/Area Number |
19340124
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
KURITA Kei The University of Tokyo, 地震研究所, 教授 (00111451)
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| Research Collaborator |
熊谷 一郎 北海道大学, 工学系, 任期付き研究員
ANNE Davaille , FAST, Orsay, France, 教授
STEPHANE Labrosse , ENS de Lyon, France, 教授
DAVID Baratoux , MPO, Toulouse, France, 准教授
市川 浩樹 愛媛大学, GCOE研究員
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2007: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
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| Keywords | マントル対流 / 熱対流 / 組成対流 / 構造不均質 / 境界層 / マントルトモグラフィー / プルーム / 自己組織化現象 / マントルダイナミクス / 熱輸送 / 温度場 / サスペンション流 / 不均質性 / 熱組成プルーム / 温度場計測 / 熱・組成場マッピング / D"層 / 多相流体 / マントル / 不均質構造 / 地震波速度 / 密度境界 / 対流温度場計測 / 感温液晶 |
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| Research Abstract |
A new model : the dynamics of the Earth's mantle is driven by thermal/compositional heterogeneities existing in the upper/lower boundaries is proposed based on laboratory experiments on model mantle. The compositional heterogeneities control the global convective flow through actions of topography of the boundary layer. The thermal heterogeneities by localized heat source/heat transfer also control the global convective thermal field. The convective system in turn is responsible for generation of these heterogeneities. We have focused on how the interactions between these processes organize the system.
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Report
(4 results)
Research Products
(23 results)
