Upper Lower Triassic stromatolite from Anhui, South China: Geobiologic features and paleoenvironmental implications
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- 作者：Mao Luoa ; b ; Zhong-Qiang Chena ; zhong.qiang.chen@cug.edu.cn" class="auth_mail" title="E-mail the corresponding author ; G.R. Shib ; Yuheng Fanga ; Haijun Songa ; Zhihai Jiac ; Yuangeng Huanga ; Hao Yanga
- 关键词：Late Early Triassic ; Stromatolite ; Bacteria clumps ; Coccoid-like spheroids ; Micro-quartz ; South China
- 刊名：Palaeogeography, Palaeoclimatology, Palaeoecology
- 出版年：2016
- 出版时间：15 June 2016
- 年：2016
- 卷：452
- 期：Complete
- 页码：40-54
- 全文大小：7871 K
文摘
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Stromatolite laminae contain microclotted structures, bacteria clump-like and coccoid-like spheroids.
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Cloudy, mesh-shaped micrite nuclei rimmed by euhedral sparry calcite crystals
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Abundant authigenic micro-quartz crystals in association with Fe bearing-illite clay minerals
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The formation of micro-quartz crystals from a microbial reduction of a Fe-bearing smectite precursor by SRB
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Susong stromatolite grew in euxinic–anoxic environment, indicating that SRB bloom extended into the end-Spathian.