| Project/Area Number |
21540444
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | National Museum of Nature and Science, Tokyo |
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Principal Investigator |
OSAKO Masahiro 独立行政法人国立科学博物館, 理工学研究部, グループ長 (60132693)
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| Co-Investigator(Renkei-kenkyūsha) |
YONEDA Akira 岡山大学, 地球物質科学研究センター, 准教授 (10262841)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 熱伝導率 / 熱拡散率 / 比熱 / マントル物質 / 高圧力 / 川井型装置 |
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| Research Abstract |
Thermal diffusivity, thermal conductivity and heat capacity of mantle materials were measured under high pressure using a pulse heating method in a Kawai-type apparatus. Hydrous minerals, such as serpentine and talc show particular behavior in heat capacity. In contrast with olivine, one of the major mantle minerals, these hydrous minerals have distinct pressure-or temperature-change in thermal diffusivity and thermal conductivity. This will cause the temperature fluctuation in the subduction zone. Next we extended the pressure range from 10 Gpa to 15 Gpa using the similar sample assembly with a smaller pressure cell. This cell promises further measurements by the same method at the conditions of the transition zone and the lower mantle.
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