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Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China
Shen, JW; Webb, GE; jwshen@scsio.ac.cn
2004
发表期刊SEDIMENTARY GEOLOGY
ISSN0037-0738
卷号170期号:40545页码:63-84
摘要Stromatolites occurred in many reef complexes throughout the Phanerozoic, and microbial communities played an important role in both ancient and modem stromatolite reefs. Famennian (Upper Devonian) limestone outcrops at Shatang, northwest of Guilin, South China contain stromatolite reefs. Calcimicrobes and algae are also abundant in the reef limestones, highlighting the importance of microbial communities in initial reef formation after the Frasnian/Famennian biotic crisis. In some cases, the Shatang stromatolites are connected to form a rigid framework, showing a significant ability for construction of biohermal reefs; and in other cases, they occur as isolated structures. The cores of stromatolite reefs were formed by massive limestone containing columnar and dichotomous branching stromatolites. Calcimicrobes and algae (e.g., Solenopora, Parachaetetes, Garwoodia, and problematic forms) are also common. Some of the calcimicrobes formed stromatolites, and other calcimicrobes played a role in sediment stabilization and were more common in biostromal thickets. Shatang stromatolitic reefs grew on a shoal deposit composed of sand- and pebble-sized bioclasts. Field observation and facies analysis suggest that Shatang stromatolitic reefs formed platform margin facies, which, together with previously described Renalcis-Epiphyton reefs, Renalcis reefs, ooid shoals, brachiopod-shell shoals, and nautiloid shoals, rimmed the northwest part of the Guilin carbonate platform. The fossil microbial/algal communities, together with a complex of sedimentary features, allow reconstruction of the depositional history of the environment. Based on comparison with coeval reefs in the Guilin area and the previously developed regional tectonic history, a model is proposed describing the sedimentary history of Famennian reefs in Guilin. Interpretation of the Shatang stromatolites as disaster biota is equivocal, as other factors may also have influenced the abundance and type of microbialites in shallow-platform margin reef settings in the Late Devonian. (C) 2004 Elsevier B.V. All rights reserved.
部门归属Chinese Acad Sci, China Sea Inst Oceanol S, Dept Marine Geol, Guangzhou 510301, Peoples R China; Chinese Acad Sci, Key Lab Marginal Sea Geol, Guangzhou 510301, Peoples R China; Queensland Univ Technol, Sch Nat Resource Sci, Brisbane, Qld 4001, Australia
关键词Devonian Famennian Guilin Reef Stromatolite Microbial
学科领域Geology
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收录类别sci
资助项目海洋地质
WOS记录号WOS:000223525900004
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被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/4790
专题中科院边缘海地质重点实验室
通讯作者jwshen@scsio.ac.cn
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Shen, JW,Webb, GE,jwshen@scsio.ac.cn. Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China[J]. SEDIMENTARY GEOLOGY,2004,170(40545):63-84.
APA Shen, JW,Webb, GE,&jwshen@scsio.ac.cn.(2004).Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China.SEDIMENTARY GEOLOGY,170(40545),63-84.
MLA Shen, JW,et al."Famennian (Upper Devonian) stromatolite reefs at Shatang, Guilin, Guangxi, South China".SEDIMENTARY GEOLOGY 170.40545(2004):63-84.
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