2017 Fiscal Year Final Research Report
Study on heat transport inside the Earth using thermal conductivity measurement technique adapted to extreme high pressure and temperature conditions
Project/Area Number |
26247075
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Solid earth and planetary physics
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Research Institution | National Institute of Advanced Industrial Science and Technology |
Principal Investigator |
Yagi Takashi 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 主任研究員 (10415755)
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Co-Investigator(Kenkyū-buntansha) |
太田 健二 東京工業大学, 理学院, 准教授 (20727218)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Keywords | 地球物理 / 熱伝導 / 地球コア / マントル / 高圧 / 高温 |
Outline of Final Research Achievements |
Heat transport inside the Earth is essential property which controls the rate of core heat loss and the long-term thermal evolution of the Earth, but it has been poorly constrained because of high pressure and high temperature conditions inside the Earth. In order to experimentally observe thermophysical properties of the Earth’s core and mantle materials, we have developed thermal conductivity measurement apparatus based on the pulsed light heating thermoreflectance method, which was utilized diamond anvil cell technique. We observed pressure, temperature and composition dependence of thermal conductivity for core and mantle materials, such as iron, ferropericlase, bridgmanite, MgO-FeO solid solutions and etc. These facts can reveal more exact estimation on heat flow across core-mantle boundary.
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Free Research Field |
熱物性計測
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