Geochemical compositional changes of the upper mantle by subducting slab-derived aqueous fluid: Contraints from the Pinatubo peridotite xenoliths
Project/Area Number |
24540511
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Science of ore deposit
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Research Institution | Kyoto University |
Principal Investigator |
YOSHIKAWA Masako 京都大学, 理学(系)研究科(研究院), その他 (00378605)
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Co-Investigator(Renkei-kenkyūsha) |
ARAI Shoji 金沢大学, 大学院自然システム学系, 教授 (20107684)
KOBAYASHI Tetsuo 鹿児島大学, 大学院理学研究科, 教授 (70112430)
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Project Period (FY) |
2012-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | かんらん岩捕獲岩 / 沈み込み帯 / 交代作用 / ピナツボ火山 / 微量元素組成 / Sr-Nd同位体比 / 火山フロント / Sr-Nd同位体 / マントル捕獲岩 / ウェッジマントル / マントルウェッジかんらん岩 / スラブ由来物質 |
Outline of Final Research Achievements |
Mantle xenoliths brought by subduction-zone magmas can record metasomatism in the mantle wedge (e.g. Arai and Ishimaru, 2008). Pinatubo volcano is located at the volcanic front of the Luzon arc of the Philippines. We present mineral major element compositions, and trace element and Nd-Sr isotopic compositions of amphibole in the Pinatubo peridotite xenoliths, which were observed in the dacite of the 1991 Pinatubo pyroclastic flow deposit. The amphibole exhibits enrichment of fluid-mobile elements such as Rb, Ba, U, Pb, and Sr, and Nd-Sr isotopic features reflecting mixing between asthenospheric mantle and subducting oceanic crusts. These petrological and geochemical characteristics of these mantle xenoliths suggest that mantle wedge beneath the Pinatubo volcano was metasomatized by aqueous fluids derived from subducted oceanic crust.
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Report
(4 results)
Research Products
(23 results)
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[Journal Article] Mantle wedge infiltrated with saline fluids from dehydration and decarbonation of subducting slab2013
Author(s)
Kawamoto, T, Yoshikawa, M, Kumagai, Y, Mirabueno, MHT, Okuno, M, Kobayashi, T
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Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 110
Issue: 24
Pages: 9663-9668
DOI
Related Report
Peer Reviewed
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[Journal Article] Petrology of Lasail plutonic complex, northern Oman ophiolite, Oman: An example of arc-like magmatism associated with ophiolite detachment2013
Author(s)
Tsuchiya, N., Shibata, T., Yoshikawa, M., Adachi, Y., Miyashita, S., Adachi, T., Nakano, N., Osanai, Y.
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Journal Title
Lithos
Volume: 156-159
Pages: 120-138
DOI
Related Report
Peer Reviewed
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[Journal Article] Geochemical and Sr-Nd-Pb isotopic constraints on the origin and magmatic evolution of Quaternary lavas of Sakurajima volcano, southern Kyushu Island, Japan2013
Author(s)
Shibata, T, Suzuki, J., Yoshikawa, M., Kobayashi, T., Miki, D. and Takemura, K.
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Journal Title
Bulltin of the Volcanologycal Society of Japan
Volume: 58
Pages: 43-58
Related Report
Peer Reviewed
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[Journal Article] Mineral chemistry of the Neoproterozoic Alaskan-type Akarem Intrusion with special emphasis on amphibole: Implications for the pluton origin and evolution of subduction-related magma2012
Author(s)
El-Rahman a, Y.A, Helmy, H.M., Shibata, T., Yoshikawa, M., Arai, S. and Tamura, A.
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Journal Title
Lithos
Volume: 155
Pages: 410-425
DOI
Related Report
Peer Reviewed
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[Presentation] Mantle metasomatism by subducted oceanic crust recorded in the peridotite xenoliths in the 1991 Pinatubo dacite2014
Author(s)
Yoshikawa, M., Tamura, A., Arai, S., Kobayashi, T., Kawamoto, T., Okuno, M., Payot, B.D., Rivera, D.J., Bariso, E.B., Mirabueno, Ma. Hannah T.
Organizer
Asia Oceania Geosciences Society 11th Annual Meeting
Place of Presentation
札幌
Year and Date
2014-08-01
Related Report
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[Presentation] Petrologic Nature of the Uppermost Mantle Beneath Mt. Pinatubo, Philippines: Constraints from a Rare Spinel Lherzolite Xenolith2014
Author(s)
Payot, B., Arai, S., Yoshikawa, M., Rivera, D.J., Okuno, M.
Organizer
Asia Oceania Geosciences Society 11th Annual Meeting
Place of Presentation
札幌
Year and Date
2014-07-28
Related Report
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[Presentation] ピナツボ火山かんらん岩捕獲岩の岩石学的特徴と沈み込む海洋地殻による交代作用2014
Author(s)
芳川雅子, 田村明弘, 荒井章司, 小林哲夫, 川本竜彦, 奥野充, Payot Betchaida, Rivera J., Danikko, Bariso B. Ericson, Mirabueno Ma. Hannah T.
Organizer
地球惑星連合大会
Place of Presentation
横浜
Year and Date
2014-04-28
Related Report
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[Presentation] Subducted Halogens and Noble Gases in the Mantle Wedge Peridotites2013
Author(s)
Kobayashi M, Sumino H, Nagao K, Ishimaru S, Arai S, Yoshikawa M, Kawamoto T, Kumagai Y, Kobayashi T, Burgess R & Ballentine CJ
Organizer
Goldschimdt会議
Place of Presentation
Florence, Italy
Related Report
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[Presentation] Mantle wedge infiltrated with saline fluids from dehydration and decarbonation of subducting slab2013
Author(s)
Kawamoto, T., Yoshikawa, M., Kumagai, Y., Mirabueno, Ma. H. T., Okuno, M., Kobayashi, T.
Organizer
IAVCEI
Place of Presentation
Kagoshima
Related Report
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[Presentation] LREE-depleted calcic amphibole in the Pinatubo peridotite xenoliths: Evidense for metasomatism by subduction-related hydrous fluid2013
Author(s)
Yoshikawa, M., Kawamoto, T., Kumagai, Y., Arai, S., Tamura, A., Kobayashi, T., Okuno, M.
Organizer
Goldschimdt Conference
Place of Presentation
Florence, Italy
Related Report
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[Presentation] Slab-derived halogens and noble gases in mantle peridotites from subduction zones2013
Author(s)
Kobayash, M., Sumino, H., Saito, T., Nagao, K., Ishimaru, S. Arai, S., Yoshikawa, M., Kawamoto, T., Kumagai, Y., Kobayashi, T., Burgess, R., Ballentine, CJ.
Organizer
IAVCEI
Place of Presentation
Kagoshima, Japan
Related Report
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