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タイトル: Stable isotopic studies on the origin of magnesite deposits in the Setogawa Group, Shizuoka, central Japan(MEMORIAL VOLUME TO THE LATE PROFESSOR TERUHIKO SAMESHIMA)
著者: Wada, Hideki
Ohashi, Fumio
Fujioka, Kantaro
掲載誌名: Geoscience reports of Shizuoka University
出版者: Shizuoka University. Institute of Geosciences
巻: 20
開始ページ: 167
終了ページ: 173
出版日付: 1994-03
NDC: 455
抄録: Massive magnesite deposits in the Setogawa Group in Shizuoka were formed by an extensive carbonation of serpentinite in an ancient accretionary prism. Stable isotopic investigations of the origin of massive magnesite deposits revealed that a homogeneous deep-seated magmatic carbon mixing with marine limestones may be the main source of the carbon. Many calcite and dolomite veins occur in the serpentines, basaltic and pelitic rocks and based upon carbon and oxygen isotopes are supposed to be of similar origin to carbonate veins found in modern serpentine diapirs of the Izu-Bonin and Mariana is-land arc. In contrast, massive magnesite deposits were formed during the subduction of an active volcano and/or an active ridge, with circulation of magmatic carbon providing the carbon source for the serpentine diapirs.
ISSN: 03886298 OPAC
NII論文ID: 110000413355 ciniia
NII書誌ID: AN00103190 OPAC ciniib
バージョン: publisher
出現コレクション:1993 20

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