2010 Fiscal Year Final Research Report
Mantle probe beneath Central and Northeast Japan using Tertiary arc volcanic rocks
| Project/Area Number |
20540465
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Tohoku University |
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Principal Investigator |
ISHIWATARI Akira 東北大学, 東北アジア研究センター, 教授 (90184572)
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| Project Period (FY) |
2008 – 2010
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| Keywords | マグマ・火成岩 / 地殻・マントル・核 / 地球惑星物質 / 地球惑星進化 / 元素分別濃集過程 |
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| Research Abstract |
Magmas erupting on the earth's surface have experienced various degrees of fractional crystallization, but they keep geochemical information of the source mantle. Tertiary volcanic rocks from various parts of Central and Northeast Japan were studied. A non-peridotite mantle source is suggested from the low-Ni basalt of the Hokuriku Province, degree of melting of the source mantle and its chemical characteristics were determined from the primitive basalt of the northeastern Yamagata Prefecture, and the similarity and difference of the source mantle were discussed by comparing rhyolites from Northeast Japan and continental rift zone.
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[Presentation] Major and Trace elements mineral composition in peridotites from the Ust'-Belaya ophiolite, Far East Russia2011
Author(s)
Machi, S., Ishiwatari, A., Morishita, T., Hayasaka, Y., Ledneva, G. V., Sokolov, S. D., Palandzhyan, S. A., Bazylev, B. A., Tamura, A., Arai, S.
Organizer
Japanese-Russian Workshop Symposium"Northern Pacific-Rim Ophiolites and their Ocean-Floor Analogues"
Place of Presentation
CNEAS, Tohoku Univ., Sendai
Year and Date
2011-02-07
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[Presentation] Serpentinized peridotites from the Ust'-Belaya ophiolite, Far East Russia : serpentinization and metasomatism of the mantle wedge2010
Author(s)
Machi, S., Ishiwatari, A., Hayasaka, Y., Ledneva, G., Sokolov, S. D., Palandzhyan S. A., Moiseev, A. V., Bazylev, B. A., Morishita, T.
Organizer
Russia-Japanese Workshop Symposium"Ophiolites and related complexes : significance for geodynamic interpretations"
Place of Presentation
Geological Institute, Moscow
Year and Date
2010-06-16
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[Presentation] Paleozoic ophiolitic complexes in Northeast Russia : Evidence for opening of the Paleo-Pacific ocean?2010
Author(s)
Ishiwatari, A., Machi, S., Hayasaka, Y., Ledneva, G. V., Sokolov, S. D., Palandzhyan, S. A., Bazylev, B. A.
Organizer
Russia-Japanese Workshop Symposium"Ophiolites and related complexes : significance for geodynamic interpretations"
Place of Presentation
Geological Institute, Moscow
Year and Date
2010-06-15
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[Presentation] Metamorphosed shallow mantle wedge witnessed from the Paleozoic Ust'-Belaya ophiolite in northern Koryak Mts., Chukotka, NE Russia : A preliminary report2008
Author(s)
Ishiwatari, A., Sokolov, S. D., Hayasaka, Y., Ledneva, G. V., Bazylev, B. A., Palandzhyan, S. A., Machi, S., Moiseev, A. V.
Organizer
International Geological Congress
Place of Presentation
Oslo
Year and Date
2008-08-07
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