2010 Fiscal Year Final Research Report
Numerical studies on generation mechanism of plume-mode and plate-mode by three-dimensional mantle convection models
| Project/Area Number |
20740260
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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 |
Solid earth and planetary physics
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
YOSHIDA Masaki Japan Agency for Marine-Earth Science and Technology, 地球内部ダイナミクス領域, 主任研究員 (00371716)
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| Project Period (FY) |
2008 – 2010
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| Keywords | マントル対流 / 数値シミュレーション / 三次元 / プルーム / プレート / 超大陸 / レオロジー / 地震波トモグラフィー |
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| Research Abstract |
I developed a finite-volume based three-dimensional mantle convection simulation code using the Yin-Yang grid, which enables me to successfully simulate convection with the temperature- and pressure-dependent viscosity. Using this code, I clarified that the degree-one and degree-two dominant convection is basic structures of mantle convection in the terrestrial planets. Then, I developed the mantle convection model with the deformable, mobile continental lithosphere to obtain the numerical results realizing the supercontinental cycle.
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