Mass transfer from amphibolite-facies slab to the mantle and magma genesis in the initial stage of subduction
| Project/Area Number |
18340171
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
ISHIKAWA Tsuyoshi Japan Agency for Marine-Earth Science and Technology, 高知コア研究所, グループリーダー (30270979)
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| Project Period (FY) |
2006 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥8,320,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2007: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2006: ¥2,600,000 (Direct Cost: ¥2,600,000)
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| Keywords | オマーンオフィオライト / 島弧 / 火山岩 / ボニナイト / 微量元素 / 同位体 / マグマ / 流体 |
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| Research Abstract |
Field survey and chemical analysis were carried out for the Oman ophiolite, a large fragment of 100 million year-old oceanic lithosphere. The field survey revealed widespread occurrence of boninite which represents the volcanic rock formed in subduction zone with extremely hot thermal structure. The chemical analysis showed that hydrous fluids liberated from subducted, amphibolite-facies oceanic crust (500～700℃) were widely incorporated in magma genesis in the initial stage of subduction.
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Report
(6 results)
Research Products
(26 results)
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[Journal Article] Browning, E.-L., Li, X., and The IODP Expedition 307 Scientists, Age constraints on the origin and growth history of a deep-water coral mound in NE Atlantic drilled in IODP Expedition 307.2007
Author(s)
Kano, A., Ferdelman, T.G., Williams, T., Henriet, J.-P., Ishikawa, T., Kawagoe, N., Takashima, C., Kakizaki, Y., Abe, K., Sakai, S.
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Journal Title
Geology 35
Pages: 1051-1054
Related Report
Peer Reviewed
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[Journal Article] The IODP Expedition 307Scientists(2007)Age constraints on the origin and growth history of adeep-water coral mound in NE Atlanticdrilled in IODP Expedition 3072007
Author(s)
Kano, A., Ferdelman, T. G., Williams,T., Henriet, J.-P., Ishikawa, T.,Kawagoe, N., Takashima, C., Kakizaki,Y., Abe, K., Sakai, S., Browning, E.-L., Li, X.
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Journal Title
Geology vol.35
Pages: 1051-1054
Related Report
Peer Reviewed
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