Microbial sulfate reduction within the Iheya North subseafloor hydrothermal system constrained by quadruple sulfur isotopes
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- 作者：Shinnosuke Aoyamaa ; aoyama.s.ab@m.titech.ac.jp" class="auth_mail ; Manabu Nishizawab ; Ken Takaib ; c ; d ; Yuichiro Uenoa ; b ; d
- 关键词：subseafloor ; hydrothermal system ; sulfur ; bacterial sulfate reduction ; quadruple sulfur isotopes
- 刊名：Earth and Planetary Science Letters
- 出版年：15 July 2014
- 年：2014
- 卷：398
- 期：Complete
- 页码：113-126
- 全文大小：9640 K
文摘
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Subseafloor hydrothermal system may host abundant microbial community.
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We analyzed 4 sulfur isotopes of the core samples collected at Iheya hydrothermal system.
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The observed 未34S enrichment suggests sulfate reduction below the seafloor.
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The sulfate reduction is not thermochemical process but microbial process.
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The contribution of microbial sulfate reduction to the system is estimated.