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A sudden end-Permian mass extinction in South China
Shen, Shu-zhong (沈树忠)1,2,3; Ramezani, Jahandar4; Chen, Jun5; Cao, Chang-Qun (曹长群)1,2; Erwin, Douglas H.6; Zhang, Hua (张华)1,2; Xiang, Lei (向雷)1,2; Schoepfer, Shane D.7; Henderson, Charles M.8; Zheng, Quan-Feng (郑全锋)1,2,9; Bowring, Samuel A.4; Wang, Yue (王玥)1,2; Li, Xian-Hua10; Wang, Xiang-Dong (王向东)2,3,9; Yuan, Dong-Xun (袁东勋)1,2; Zhang, Yi-Chun (张以春)1,2; Mu, Lin (牟林)1,2,9; Wang, Jun (王军)1,2,3; Wu, Ya-Sheng11
2019
Source PublicationGEOLOGICAL SOCIETY OF AMERICA BULLETIN
ISSN0016-7606
Volume131Issue:1-2Pages:205-223
Abstract

Previous studies of the end-Permian mass extinction have established that it was geologically rapid, but condensed sections have made it difficult to establish the exact timing of the extinction relative to fluctuations in the ocean carbon cycle, oxygen levels, and temperature. Integrated high-precision U-Pb geochronology, biostratigraphy, and chemostratigraphy from a highly expanded section at Penglaitan, Guangxi, South China reveal a sudden end-Permian mass extinction that occurred at 251.939 +/- 0.031 Ma, which is temporally coincident with the extinction recorded in Bed 25 of the Meishan section. Despite the significantly expanded nature of the section and extensive collecting of more than ten major marine fossil groups, there is no evidence of a decline of biotic diversity prior to the extinction interval and no Permian-type species survive the extinction at this location. Fossil range data suggest a nearly instantaneous extinction at the top of a narrow stratigraphic interval limited to 31 +/- 31 k.y. The extinction was preceded by and/or accompanied by fluctuations in delta C-13(carb) and delta C-13(org) of 2-3 parts per thousand and 3-5 degrees C in seawater temperature. A larger, more rapid seawater temperature rise of 6-8 degrees C immediately followed the extinction level at Penglaitan. The extinction is spatially associated with a thick unit of tuff and tuffaceous sandstones (Bed 141) indicating massive pyroclastic input. It is correlative with an ash layer (Bed 25) in the deeper water setting at Meishan, where some Permian-type organisms survived the extinction. Our study reveals that the survivability of Permian taxa after the major extinction pulse is variable and dependent upon the severity of environmental perturbation in different sedimentary settings. The sudden extinction may fit a scenario in which the onset of Siberian Traps and South China intensive volcanism similar to 420 k.y. before the extinction may have diminished the ecological resilience of communities and reduced ecological functions with little change in diversity. In such an environmentally stressed condition, a single environmental disturbance could trigger the sudden collapse of global ecosystems.

DOI10.1130/B31909.1
Language英语
WOS KeywordTriassic Boundary ; Meishan Section ; Siberian Traps ; 2 Episodes ; Permian/triassic Boundary ; Marine ; Province ; Biostratigraphy ; Conodonts ; Geochronology
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18000000] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[QYZDY-SSW-DQC023] ; NSERC Discovery Grant
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000454928000013
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; NSERC Discovery Grant
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16161
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorShen, Shu-zhong (沈树忠); Chen, Jun
Affiliation1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Nanjing 210023, Jiangsu, Peoples R China
4.MIT, Dept Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA
5.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China
6.Natl Museum Nat Hist, Dept Paleobiol, MRC 121, Washington, DC 20013 USA
7.Western Carolina Univ, Dept Geosci & Nat Resources, Cullowhee, NC 28723 USA
8.Univ Calgary, Dept Geosci, Calgary, AB T2N 1N4, Canada
9.Chinese Acad Sci, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China
10.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
11.Chinese Acad Sci, Inst Geol & Geophys, CAS Key Lab Petr Resource Res, Beijing 100029, 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
Shen, Shu-zhong ,Ramezani, Jahandar,Chen, Jun,et al. A sudden end-Permian mass extinction in South China[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2019,131(1-2):205-223.
APA Shen, Shu-zhong .,Ramezani, Jahandar.,Chen, Jun.,Cao, Chang-Qun .,Erwin, Douglas H..,...&Wu, Ya-Sheng.(2019).A sudden end-Permian mass extinction in South China.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,131(1-2),205-223.
MLA Shen, Shu-zhong ,et al."A sudden end-Permian mass extinction in South China".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 131.1-2(2019):205-223.
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