海洋下マントルのメタソマティズム： タヒチ産マントル捕獲岩を用いた岩石学的考察

秋澤 紀克; 小木曽 哲; 石川 晃; 荒井 章司

doi:10.14862/geochemproc.63.0_166

Abstracts of Annual Meeting of the Geochemical Society of Japan

DOI https://doi.org/10.14862/geochemproc.63.0_166

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Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

Mantle metasomatism beneath the oceanic floor: Petrological insight into the mantle xenolith from Tahiti

*Norikatsu Akizawa, Tetsu Kogiso, Akira Ishikawa, Shoji Arai

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Keywords: PGE, sulfide, melt inclusions, carbonatite metasomatism

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 166-

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Abstract

Compositional and isotopic characteristics on platinum group elements in the mantle peridotites are strong tools to unravel Earth's history such as core-mantle fractionation and the following chemical evolution. This study aims at delineating petrogenesis of the mantle xenolith collected from Tahiti that includes PGE-bearing oxides, with using petrological approaches.

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