Redox state of arc magma, inferred from sulfur speciations of melt inclusions
| Project/Area Number |
25610160
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Petrology/Mineralogy/Economic geology
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
Shimizu Kenji 国立研究開発法人海洋研究開発機構, 高知コア研究所, 技術研究員 (30420491)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 島弧火山岩 / 酸化還元状態 / メルト包有物 / 硫黄化学形態 / 放射光施設 / 島弧玄武岩 / ボニナイト / 酸素分圧 / 島弧マグマ / 硫黄化学状態 |
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| Outline of Final Research Achievements |
Redox state of the Earth's interior influences on its physical properties and redox sensitive elements (e.g. chalcophiles, siderophiles). Redox state of mantle beneath a subduction zone (wedge mantle), which is the only place where the material on the surface is brought to the deep mantle, is essential to understand the global material cycles, but its estimation is highly controversial. In order to evaluate redox state of wedge mantle, we analyzed sulfur speciation (highly sensitive to redox state) of primitive melt inclusions within Cr-spinel from arc volcanic rocks by soft X-ray microbeam at SPring-8. As a result, we indicate that wedge mantle is oxidized. We expect that we are able to constrain the element enrichment processes at subduction zone.
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] Isotopic evidence for a link between the Lyra Basin and Ontong Java Plateau. The Origin Evolution, and Environmental Impact of Oceanic Large igneous Provinces2015
Author(s)
M. L. G. Tejada, K. Shimizu, K. Suzuki, T. Hanyu, T. Sano, M. Nakanishi, S. Nakai, A. Ishikawa, Q. Chang, T. Miyazaki, Y. Hirahara, T. Takahashi, and R. Senda
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Journal Title
Geological Society of America Special Paper / Geological Society of America
Volume: 511
Pages: 251-269
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Hydrogen-rich hydrothermal environments in the Hadean ocean inferred from serpentinization of komatiites at 300° C and 500 bar2015
Author(s)
Shibuya, T., Yoshizaki, M., Sato, M., Shimizu, K., Nakamura, K., Omori, S., Suzuki, K., Takai, K., Tsunakawa, H., Maruyama, S.
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Journal Title
Progress in Earth and Planetary Science
Volume: 2
Issue: 1
Pages: 1-11
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Boron and Chlorine contents of basalts from Shatsky Rise, IODP Expedition 324: implications for the alteration of oceanic plateaus2015
Author(s)
Masaya Miyoshi, Takashi Sano, Kenji Shimizu, Adelie Delacour, Toshiaki Hasenaka, Yasushi Mori, Takaaki Fukuoka
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Journal Title
In: Neal C.R., Sager W., Sano T., Erba E（eds) The Origin, Evolution, and Environmental Impact of Oceanic Large Igneous Provinces. Geological Society of America Special Paper
Volume: 511
Pages: 69-84
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Simultaneous determinations of fluorine, chlorine, and sulfur in rock samples by ion chromatography combined with pyrohydrolysis2015
Author(s)
Shimizu, K., Suzuki, K., Saitoh, M., Konno, U., Kawagucci, S., Ueno, Y.
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Journal Title
GEOCHEMICAL JOURNAL
Volume: 49
Issue: 1
Pages: 113-124
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Open Access / Acknowledgement Compliant
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[Presentation] Remelting of Ontong Java Plateau Lithosphere2015
Author(s)
Hanyu, T., Tejada, M.L., Shimizu, K., Ishikawa, A., Kimura, J.-I., Chang, Q.,Senda, R., Miyazaki, T., Goto, K., Ishizuka, O.
Organizer
2015 Goldschmidt Conference
Place of Presentation
プラハ（チェコ） コングレスセンター
Year and Date
2015-08-20
Related Report
Int'l Joint Research
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[Presentation] 南鳥島周辺海域のプチスポット2015
Author(s)
平野 直人, 岩野 英樹, 清水 健二, 森下 泰成, 田村 明弘, 角野 浩史, 坂田 周平, 町田 嗣樹, 石井 輝秋, 檀原 徹, 荒井 章司, 平田 岳史
Organizer
日本地球惑星科学連合2015年大会
Place of Presentation
千葉県千葉市 幕張メッセ
Year and Date
2015-05-28
Related Report
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