伊豆・小笠原・マリアナ弧の海底熱水系に見られる”重い”メタンの起源について

角皆 潤; 小松 大祐; 中川 書子

doi:10.14862/geochemproc.59.0.87.0

Abstracts of Annual Meeting of the Geochemical Society of Japan

Session ID : 1D23

DOI https://doi.org/10.14862/geochemproc.59.0.87.0

Conference information

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

Origin of 13C-enriched methane in deep-sea hydrothermal fluids from the Izu-Bonin-Mariana Arc

*Tsunogai Urumu, Daisuke D. Komatsu, Fumiko Nakagawa

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Keywords: Izu-Bonin arc, deep-sea hydrothermal fluids, abiogenic methane, carbon isotopes, Suiyo seamount

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

Methane in hydrothermal fluids of Suiyo seamount, located in the central part of Izu-Bonin-Mariana arc at the depth of 1,400m, showed the 13C-enriched carbon isotopic compositions of around -6 per mil VPDB. In this study, we would like to discuss whether the 13C-enriched methane is magmatic"" or not. ""

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