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Onset of the middle Telychian (Silurian) clastic marine red beds on the western Yangtze Platform, South China
Zhang, Xiaole(张小乐)1; Liu, Jianbo1; Wang, Yi (王怿)2; Rong, Jiayu (戎嘉余)2; Zhan, Renbin (詹仁斌)2; Xu, Honghe (徐洪河)2; Tang, Peng (唐鹏)2
2018-05-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume497Pages:52-65
Abstract

Marine red beds (MRBs) occur in many locations in the world during the Telychian Stage but it is unclear how they were related with the highly dynamic Silurian Earth system. To address this question, we conducted a case study involving geochronology, palaeogeographic reconstruction, fades analysis and sea-level history of the middle Telychian MRBs on the western Yangtze Platform of South China. Their distribution pattern indicates that the clastic MRBs owe their origin to the nearby oldlands. Facies analysis indicates that rocks during the study interval generally fall into three depositional belts: shallow subtidal, deep subtidal and shaly basinal belts. A chronostratigraphic framework constrained by both biostratigraphic data and eustatic events shows that, during the early Monoclimacis crenulata interval, olive-gray strata dominated both shallower (shallow and deep subtidal belts) and deeper (shaly basinal belt) settings, while distribution of the MRBs was restricted to deeper waters (shaly basinal belt) on the open-sea side of the platform. This situation changed after the middle M. crenulata interval when the MRB deposition was dominant in both shallower and deeper settings. The diachronous onset pattern of the MRBs coincided with prominent transitions in climatic conditions (from cooler to warmer), eustatic states (from regression to transgression), benthic faunas (decline of normal marine fauna and development of euryhaline assemblages) and reduced primary productivity in the shelf settings, most likely indicative of a change between different oceanic modes. Comparative studies suggest that, the widespread Telychian MRBs in both shallow and deeper water settings owe their origin to a very low organic carbon burial rate, which could be results of higher oxygen content in the ocean water and lower primary productivity.

KeywordSedimentology Sea Level Climatic Change Carbon Burial Oxygenation Oceanic Modes
DOI10.1016/j.palaeo.2018.02.005
Language英语
WOS KeywordSea-level Changes ; Black Shales ; Carbonate Sediments ; Organic-carbon ; North-america ; Events ; Time ; Boundary ; Shelf ; Ocean
Funding ProjectNational Natural Science Foundation of China[41530103] ; National Natural Science Foundation of China[41521061] ; National Natural Science Foundation of China[41272035] ; National Natural Science Foundation of China[41221001] ; National Natural Science Foundation of China[41290260] ; National Natural Science Foundation of China[41172013] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology (NIGPAS), Chinese Academy of Sciences (CAS)[163119]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000429513500005
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology (NIGPAS), Chinese Academy of Sciences (CAS)
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/18894
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhang, Xiaole(张小乐)
Affiliation1.Peking Univ, Paleontol & Stratig Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Xiaole,Liu, Jianbo,Wang, Yi ,et al. Onset of the middle Telychian (Silurian) clastic marine red beds on the western Yangtze Platform, South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2018,497:52-65.
APA Zhang, Xiaole.,Liu, Jianbo.,Wang, Yi .,Rong, Jiayu .,Zhan, Renbin .,...&Tang, Peng .(2018).Onset of the middle Telychian (Silurian) clastic marine red beds on the western Yangtze Platform, South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,497,52-65.
MLA Zhang, Xiaole,et al."Onset of the middle Telychian (Silurian) clastic marine red beds on the western Yangtze Platform, South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 497(2018):52-65.
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