Study of microstructures and physical properties of partial molten peridotite under differential stress
Project/Area Number |
20340120
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Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | Okayama University |
Principal Investigator |
YOSHINO Takashi Okayama University, 地球物質科学研究センター, 准教授 (30423338)
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Co-Investigator(Kenkyū-buntansha) |
YAMAZAKI Daisuke 岡山大学, 地球物質科学研究センター, 准教授 (90346693)
YONEDA Akira 岡山大学, 地球物資科学研究センター, 准教授 (10262841)
KATSURA Tomoo 岡山大学, 地球物質科学研究センター, 教授 (40260666)
ITOU Eiji 岡山大学, 地球物質科学研究センター, 名誉教授 (00033259)
|
Project Period (FY) |
2008 – 2010
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Project Status |
Completed (Fiscal Year 2010)
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Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
|
Keywords | アセノスフェア / 高圧 / 上部マントル / 部分熔融 / ペリドタイト / 塑性変形 / 微細組織 / 電気伝導度 / レオロジー / ペリドタイド / 変形実験 / 異方性 / 連結度 / 差応力 / 部分溶融 / 高温高圧 / 物性 / 微細構造 |
Research Abstract |
In order to determine physical properties of partially molten peridotite, we renewed operation system of a DIA-type mutianvil press with deformation finction. We compared electrical conductivities of the partial molten peridotites under hydrostatic and shear stress conditions. Preliminary result suggested that the conductivity parallel to shear direction is one order of magnitude higher than that normal to the shear direction. This result is consistent with the conductivity anisotropy observed at top of the asthenosphere and suggests a presence of partial molten zone at that depth.
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Report
(4 results)
Research Products
(112 results)
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[Journal Article] Phase boundary between perovskite and post-perovskite structures in MnGeO3 determined by in situ X-ray diffraction measurements using sintered diamond anvils2011
Author(s)
D.Yamazaki, E.Ito, T.Katsura, T.Yoshino, S.Zhai, H.Fukui, A.Shatskiy, X.Guo, S.Shan, T.Okuchi, Y.Tange, Y.
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Journal Title
American Mineralogists
Volume: 96
Pages: 89-92
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Peer Reviewed
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[Journal Article] P-V-T relations of MgSiO_3 perovskite determined by in situ X-ray diffraction using a large-volume high-pressure apparatus.2009
Author(s)
T.Katsura, S.Yokoshi, K.Kawabe, A.Shatskiy, G.Manthilake, S.Zhai, H.Fukui, T.Yoshino, D.Yamazaki, T.Matsuzaki, A.Yoneda, E.Ito
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Journal Title
Geophysical Research Letters Vol.36
Related Report
Peer Reviewed
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[Journal Article] P-V-T relations of wadsleyite determined by in situ X-ray diffraction in a large-volume high-pressure apparatus2009
Author(s)
T.Katsura, A.Shatskiy, M.A.G.M.Manthilake, S.Zhai, D.Yamaraki, T.Matsuzaki, T.Yoshino, A.Yoneda, E.Ito, M.Sugita. N.Tomioka, A.Nozawa, K.Funakoshi
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Journal Title
Geophysical Research Letters 36
Related Report
Peer Reviewed
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[Presentation] Compression of MgSiO3 and (Mg, Fe)SiO3 perovskites based on the pressure generation technique using sintered diamond anvils in a Kawai-type apparatus2010
Author(s)
D.Yamazaki, E.Ito, T.Yoshino, A.Shimojuku, A.Yoneda, S.Shan, X.Guo, Y.Higo, K.Funakoshi
Organizer
American Geophysical Union, Fall meeting 2010
Place of Presentation
Moscone Convention Center (United States of America)
Year and Date
2010-12-13
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[Presentation] 東北地方上部マントル電気伝導構造探査の為の長周期MT観測2010
Author(s)
市來雅啓, 小川康雄, 吹野浩美, 長竹宏之, 藤田清士, 神田径, 小山崇夫, 松島政貴, 藤浩明, 上嶋誠, 芳野極
Organizer
地球惑星科学連合大会
Place of Presentation
幕張国際会議場(千葉県)
Year and Date
2010-05-24
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