Methane-derived authigenic carbonate from the lower Doushantuo Formation of South China: Implications for seawater sulfate concentration and global carbon cycle in the early Ediacaran ocean
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- 作者：Chuanming Zhoua ; cmzhou@nigpas.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Chengguo Guana ; Huan Cuib ; Qing Ouyanga ; c ; Wei Wanga
- 关键词：Anaerobic oxidation of methane ; Microbial sulfate reduction ; Cold seep deposits ; Carbon cycle ; Sulfur cycle ; Carbon isotope chemostratigraphy
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：461
- 期：Complete
- 页码：145-155
- 全文大小：3426 K
文摘
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Authigenic carbonate (δ13C down to –38.1 ‰) occurs in lower Doushantuo Formation.
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Anaerobic oxidation of methane driven by microbial sulfate reduction.
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Occurrence of authigenic carbonate suggests higher seawater sulfate concentration.
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Involvement of authigenic carbonate complicates global δ13C chemostratigraphy.