NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Lopingian (Upper Permian) trace fossils from the northern Penglaitan Section, Laibin, Guangxi, South China and their environmental implications
Ding, Yi1,2; Cao, Chang-Qun1; Zheng, Quan-Feng3
2016-09-01
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume25Issue:3Pages:377-387
AbstractThe end-Permian mass extinction has been widely documented to be accompanied with oceanic anoxia, which was considered as one of the most plausible killing mechanisms. However, it is still unclear when anoxia began to occur and how widely affected during the pre-extinction interval. In this study, Lopingian bottom-water oxygen level changes around the Wuchiapingian-Changhsingian boundary (WCB) at the northern Penglaitan section in Guangxi are analysed based on trace fossil assemblages and ichnofabric indices. Detailed bed-by-bed ichnological analyses confirm the presence of trace fossils Chondrites intricatus, C. isp., Palaeophycus isp., Planolites isp. A, P isp. B, Thalassinoides isp. A, T isp. B, Trichichnus linearis, Zoophycos isp., and other bioturbational structures. The ichnofabric indices around the WCB are mostly 1-2, but rapidly increase to 4-5 in some short intervals. The distinct fluctuations of ichnofabric indices suggest that the oxygen level of sediments was generally deficient, but the dysoxic or anoxic periods were punctuated by several short oxic intervals. Thus, it can be inferred that the benthic organisms were under secularly environmental stresses around the WCB at the northern Penglaitan section. The anoxic conditions unfavourable for aerobiosis in the deep basin may start in the late Wuchiapingian. However, more sections need to be studied to determine whether this is a local or regional phenomenon. (C) 2015 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.
KeywordTrace fossil Lopingian Northern Penglaitan section Oxygen level
DOI10.1016/j.palwor.2015.11.012
Language英语
WOS KeywordOCEANIC ANOXIC EVENT ; SEA-LEVEL CHANGES ; MASS EXTINCTION ; TRIASSIC BOUNDARY ; DEEP-SEA ; ZHEJIANG PROVINCE ; BETIC CORDILLERA ; REDOX CONDITIONS ; BOTTOM WATERS ; ZOOPHYCOS
Funding ProjectNational Basic Research Program of China[2011CB808905] ; National Natural Science Foundation of China[41290260]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000382387200004
Funding OrganizationNational Basic Research Program of China ; National Natural Science Foundation of China
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/332004/12379
Collection中国科学院南京地质古生物研究所
Corresponding AuthorDing, Yi
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Ding, Yi,Cao, Chang-Qun,Zheng, Quan-Feng. Lopingian (Upper Permian) trace fossils from the northern Penglaitan Section, Laibin, Guangxi, South China and their environmental implications[J]. PALAEOWORLD,2016,25(3):377-387.
APA Ding, Yi,Cao, Chang-Qun,&Zheng, Quan-Feng.(2016).Lopingian (Upper Permian) trace fossils from the northern Penglaitan Section, Laibin, Guangxi, South China and their environmental implications.PALAEOWORLD,25(3),377-387.
MLA Ding, Yi,et al."Lopingian (Upper Permian) trace fossils from the northern Penglaitan Section, Laibin, Guangxi, South China and their environmental implications".PALAEOWORLD 25.3(2016):377-387.
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