2009 Fiscal Year Final Research Report
Effects of water on high-pressure transformation kinetics and the metastable mineralogy in subducting oceanic plates
| Project/Area Number |
19684019
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Kyushu University |
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Principal Investigator |
KUBO Tomoaki Kyushu University, 大学院・理学研究院, 准教授 (40312540)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 地球惑星物質 / 相転移 / 流動 |
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| Research Abstract |
Oceanic plates descend into the Earth's deep interior as cold currents of mantle convection, and largely deform in the mantle transition zone at 400-800 km depths. The present study was intended to experimentally reveal phase transformations and plastic deformation of the plate materials, those are key processes affecting the plate dynamics. Mineralogy, density, viscosity, and water content were constrained based on the experimental results obtained, and those effects on the mantle convection were discussed.
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