Dehydration and melting process in deep subduction zone-Zircon geochemistry from the Sanbagawa eclogite-
Project/Area Number |
21540468
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Geology
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Research Institution | Saitama University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
TERABAYASHI Masaru 香川大学, 工学部, 教授 (40243745)
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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: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
Keywords | 地質学 / 地殻・マントル物質 / 沈み込み帯深部 / 部分融解 / ジルコン / 低温高圧型変成岩 / エクロジャイト / サブダクションファクトリー |
Research Abstract |
Partial melting texture was discovered from the Sanbagawa eclogoite which had been subducted down to upper mantle at Cretaceous time. Zircons were separated from the eclogite. The zircons exhibit sector zoning on the core to mantle under the CL images. SHRIMP U-Pb age dating and REE analysis from the zircons indicate that the partial melting had occurred in the case of young (hot) slab at upper mantle depth. The melting reaction was due to phengite decomposition. The zircon and the garnet were grown together in the presence of melt.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Intra-oceanic island arc origin for Iratsu eclogites of the Sanbagawa belt, central Shikoku, southwest Japan2011
Author(s)
Utunomiya, A., Jhan, B., Okamoto, K., Ota, T., Shinjo, H.
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Journal Title
Chemical Geology
Volume: 280
Pages: 97-114
Related Report
Peer Reviewed
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[Journal Article] Early Paleozoic medium-pressure metamorphism in central Vietnam : evidence from SHRIMP U-Pb zircon ages2009
Author(s)
Terabayashi, M., Okamoto, K., Usuki, T., Lan, C. Y., Yui, T. F., Iizuka, Y., Vu, V. T., Tran, T. A. Okamoto, K., Wooden, J. L., Liou, J. G.
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Journal Title
Geosciences Journal
Volume: 13
Pages: 245-256
Related Report
Peer Reviewed
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[Journal Article] Detrital zircon evidence for the antiquity of Taiwan2009
Author(s)
Lan, C. Y., T. Usuki, K. L. Wang, T. F. Yui, K. Okamoto, Y. H. Lee, T. Hirata, Y. Kon, Y. Orihashi, J. G. Liou, C. S. Lee
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Journal Title
Geosciences Journal
Volume: 13
Pages: 233-243
Related Report
Peer Reviewed
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[Journal Article] Late Triassic-Late Cretaceous accretion/subduction in the Taiwan region along the eastern margin of South China2009
Author(s)
Yui, T. F., Okamoto, K., Usuki, T., Lan, C. Y., Chu, H. T., Liou, J. G.
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Journal Title
evidence from zircon SHRIMP dating, International Geology Review
Volume: 51
Pages: 304-328
Related Report
Peer Reviewed
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[Journal Article] Late Triassic-Late Cretaceous accretion/subduction in the Taiwan region along the eastern margin of South Chian -evidence from zircon SHRIMP dating.2009
Author(s)
Yui, T.F., 岡本和明, Usuki, T., Lan, C.Y., Chu, H.T., Liou, J.G.
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Journal Title
International Geology Review 51
Pages: 304-328
Related Report
Peer Reviewed
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[Journal Article] Detrital zircon evidence for the antiquity of Taiwan.2009
Author(s)
Lan, C.Y., T.Usuki, K.L.Wang, T.F.Yui, K.Okamoto, Y.H.Lee, T.Hirata, Y.Kon, Y.Orihashi, J.G.Liou, C.S.Lee
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Journal Title
Geosciences Journal 13
Pages: 233-243
Related Report
Peer Reviewed
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[Journal Article] Early Paleozoic medium-pressure metamorphism in central Vietnam : evidence from SHRIMP U-Pb zircon ages.2009
Author(s)
Usuki, T., Lan, C.Y., Yui, T.F., Iizuka, Y., Vu, V.T., Tran, T.A., 岡本和明, Wooden, J.L., Liou, J.G.
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Journal Title
Geosciences Journal 13
Pages: 245-256
Related Report
Peer Reviewed
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[Presentation] Fluid geochemistry in the Major Listric Fault of the Collision Zone-fluid inclusion chemistry from the Lishan Fault, Taiwan2012
Author(s)
Okamoto. K., Iijima, C., Kurosawa, M., Chan, Y.C., Terabayashi, M.
Organizer
Joint Symposium of Misasa 2012 and Geofluid-2 Dynamics and Evolution of the Earth's interior : special eamphasis on the role of fluids
Place of Presentation
Blanc-Art Misasa, Tottori, Japan(invited)
Year and Date
2012-03-19
Related Report
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[Presentation] Importance of ferric estimation based on Mossbauer and micro-XANES analysis-2009
Author(s)
Okamoto, K., Jahn, B., Yui, T.F., Akasaka, M., Xu, Z.
Organizer
8th International Eclogite Conference
Place of Presentation
Xining, Qinghai, China
Year and Date
2009-08-28
Related Report
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