Study on heat transport inside the Earth using thermal conductivity measurement technique adapted to extreme high pressure and temperature conditions
Project/Area Number |
26247075
|
Research Category |
Grant-in-Aid for Scientific Research (A)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Solid earth and planetary physics
|
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)
|
Co-Investigator(Kenkyū-buntansha) |
太田 健二 東京工業大学, 理学院, 准教授 (20727218)
|
Project Period (FY) |
2014-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
|
Budget Amount *help |
¥41,210,000 (Direct Cost: ¥31,700,000、Indirect Cost: ¥9,510,000)
Fiscal Year 2017: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2016: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Fiscal Year 2015: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2014: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
|
Keywords | 地球物理 / 熱伝導 / 地球コア / マントル / 高圧 / 高温 / 地球・惑星内部構造 / 地球深部 / 熱伝導率 / 熱移動 / 内部ダイナミクス・物性 / 地球核 / 地球内部構造 |
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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Report
(5 results)
Research Products
(14 results)