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Connecting the marine red beds with the onset of the Great Ordovician Biodiversification Event: A case study from the Laojianshan Formation of western Yunnan, Sibumasu Massif
Zhang, Xiao-Le (张小乐)1,2; Wang, Yi (王怿)2; Liu, Jian-Bo1; Rong, Jia-Yu (戎嘉余)2; Li, Rongyu3; Zhan, Ren-Bin (詹仁斌)2; Wu, Rong-Chang (吴荣昌)2; Tang, Peng (唐鹏)2
2019-03-01
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume28Issue:1-2Pages:211-223
Abstract

Details of the onset of the Great Ordovician Biodiversification Event (GOBE) remain unclear, and an emerging picture indicates that this process may have been linked to oceanic oxygenation. To address this question, we carried out a case study involving facies analysis and sea-level reconstruction on the Early to earliest-Middle Ordovician marine red beds (MRBs) of the Laojianshan Formation, western Yunnan, Sibumasu Massif. The Laojianshan Formation, formed prior to the main pulse of the GOBE, was deposited in four sedimentary belts including the basal lag, nearshore, inner shelf, and outer shelf. Sea-level curves reconstructed based on facies analysis are comparable to those of other major paleo-plates, indicating a eustatic control. The MRBs are widely distributed from the nearshore to the outer shelf belts, in which shelf deposition constitutes the major part. No explicit relationships between nearshore MRBs and sea level are found; however, shelf MRBs consistently coincided with transgressive intervals. The shelf MRBs generally indicate a very low organic carbon burial rate, which could be the result of a higher oxygen content in the ocean water and lower primary productivity. Comparative studies show that widespread shelf MRBs characterize the study interval while black shales were deposited in deeper settings, indicating widespread oxygenation in the pre-Darriwilian shelf, beyond which anoxia was largely restricted to the deeper ocean. Oxygenation may have ended the biomere-associated extinctions since the late Cambrian and promoted the onset of the GOBE. (C) 2018 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.

KeywordMrbs Sedimentology Climatic Cooling Sea Level Oxygenation Carbon Burial
DOI10.1016/j.palwor.2018.04.003
Language英语
WOS KeywordSouth China ; Armorican Massif ; Yangtze Platform ; Black Shales ; Middle ; Graptolites ; Oxygen ; Ocean ; Geochemistry ; Volcanism
Funding ProjectIGCP[653] ; National 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 (NIGP), Chinese Academy of Sciences (CAS)
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000463600800018
Funding OrganizationIGCP ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology (NIGP), 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/332004/15826
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorLiu, Jian-Bo
Affiliation1.Peking Univ, Paleontol & Stratig Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.Chinese Acad Sci, NIGP, State Key Lab Palaeobiol & Stratig LPS, Nanjing 210008, Jiangsu, Peoples R China
3.Brandon Univ, Dept Geol, Brandon, MB R7A 6A9, Canada
Recommended Citation
GB/T 7714
Zhang, Xiao-Le ,Wang, Yi ,Liu, Jian-Bo,et al. Connecting the marine red beds with the onset of the Great Ordovician Biodiversification Event: A case study from the Laojianshan Formation of western Yunnan, Sibumasu Massif[J]. PALAEOWORLD,2019,28(1-2):211-223.
APA Zhang, Xiao-Le .,Wang, Yi .,Liu, Jian-Bo.,Rong, Jia-Yu .,Li, Rongyu.,...&Tang, Peng .(2019).Connecting the marine red beds with the onset of the Great Ordovician Biodiversification Event: A case study from the Laojianshan Formation of western Yunnan, Sibumasu Massif.PALAEOWORLD,28(1-2),211-223.
MLA Zhang, Xiao-Le ,et al."Connecting the marine red beds with the onset of the Great Ordovician Biodiversification Event: A case study from the Laojianshan Formation of western Yunnan, Sibumasu Massif".PALAEOWORLD 28.1-2(2019):211-223.
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