沖縄トラフ海底熱水中のLi同位体比から導かれた海底下における固相側の情報について

土岐 知弘; 平敷 紗和子; 新城 竜一; 石橋 純一郎

doi:10.14862/geochemproc.62.0_4

Abstracts of Annual Meeting of the Geochemical Society of Japan

Session ID : 1A04

DOI https://doi.org/10.14862/geochemproc.62.0_4

Conference information

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

Solid phase below the seafloor estimated from Li isotope ratio in hydrothermal fluids from Okinawa Trough

*Tomohiro Toki, Sawako Heshiki, Ryuichi Shinjo, Jun-ichiro Ishibashi

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Keywords: hydrothermal system, Okinawa Trough, Li isotope ratio, sediment, volcanic rock

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Abstract

Li isotope ratios in Okinawa Trough hydrothermal fluids show higher concentrations and lower isotopic ratios than those in MOR hydrothermal fluids. It suggests Okinawa Trough hydrothermal fluids react with sediment and volcanic rocks.

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