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A rapid onset of ocean acidification associated with the end-Permian mass extinction

文献类型：期刊论文

作者Li, Rucao1; Wu, Nanping2; Shen, Shu-Zhong3,4; Wang, Xiao-Lei3,4; Chen, Huayong5; Algeo, Thomas J.6,7,8; Zhang, Hua9; Zhang, Feifei3,4
刊名GLOBAL AND PLANETARY CHANGE
出版日期2023-06-01
卷号225页码:9
ISSN号0921-8181
关键词Permian-Triassic Marcasite Sulfur isotope SIMS Meishan Penglaitan
DOI10.1016/j.gloplacha.2023.104130
通讯作者Chen, Huayong(huayongchen@gig.ac.cn) ; Zhang, Feifei(fzhang@nju.edu.cn)
英文摘要The end-Permian mass extinction (EPME) resulted in the most severe biodiversity loss in Earth's history, the cause(s) of which are still heavily debated. Recent studies have emphasized the role of ocean acidification on marine ecosystem collapse during the EPME, but the timing of the onset of ocean acidification and its relationship to contemporaneous large igneous province (LIP) magmatism remain ambiguous. Here, we present the first in-situ secondary ion mass spectrometry (SIMS) sulfur isotope data for pyrite and marcasite from the Meishan section, which hosts the Global Stratotype Section and Point (GSSP) of the Permian-Triassic boundary (PTB). We found a sharp increase in marcasite abundance and a concurrent decrease in marcasite delta 34S to highly negative values (ca. -50 parts per thousand) within the EPME interval (i.e., Beds 25-28). Combined with the morphology of marcasite, we infer that the formation of 34S-depleted anhedral marcasite occurred in a sulfate-unlimited porewater environment that was likely well connected to the overlying water column. A similar negative shift in delta 34Smarcasite was observed in the EPME interval of the Penglaitan section. Given that marcasite forms only in acidic conditions and low delta 34Smarcasite values suggest an open porewater system, the sharp negative shift in the delta 34S of syndepositional marcasite records a sudden acidification of Late Permian seawater. This conclusion is broadly consistent with previously reported boron isotope data of brachiopod-shell which witnessed a negative shift at the same stratigraphic horizons. While the ocean acidification event started after the starting point (base of Bed 25) of EPME, it occurred broadly within the extinction interval (Beds 25 to 28), supporting the hypothesis that ocean acidification may have been a major environmental factor contributing to the end-Permian marine ecosystem collapse.
WOS关键词SOUTH CHINA ; ISOTOPE FRACTIONATION ; MARCASITE FORMATION ; TRIASSIC BOUNDARY ; PYRITE FORMATION ; SULFUR ; OXIDATION ; CONSTRAINTS ; TRANSITION ; SEDIMENTS
资助项目National Natural Science Foundation of China[42273010] ; National Natural Science Foundation of China[41725009] ; National Natural Science Foundation of China[41921003] ; National Natural Science Foundation of China[41903010] ; National Natural Science Foundation of China[42073002] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB42020404] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; Fundamental Research Funds for the Central Universities[0206-14380145] ; Fundamental Research Funds for the Central Universities[0206-14380149] ; Frontiers Science Center for Critical Earth Material Cycling Fund[DLTD2102]
WOS研究方向Physical Geography ; Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000990811600001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities ; Frontiers Science Center for Critical Earth Material Cycling Fund
源URL[http://ir.nigpas.ac.cn/handle/332004/42183]  
专题中国科学院南京地质古生物研究所
通讯作者Chen, Huayong; Zhang, Feifei
作者单位1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China
2.Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
3.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, 163 Xianlin Ave, Nanjing 210023, Peoples R China
4.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, 163 Xianlin Ave, Nanjing 210023, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510604, Peoples R China
6.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China
7.China Univ Geosci, Sch Earth Sci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
8.Univ Cincinnati, Dept Geol, Cincinnati, OH 42221 USA
9.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Li, Rucao,Wu, Nanping,Shen, Shu-Zhong,et al. A rapid onset of ocean acidification associated with the end-Permian mass extinction[J]. GLOBAL AND PLANETARY CHANGE,2023,225:9.
APA Li, Rucao.,Wu, Nanping.,Shen, Shu-Zhong.,Wang, Xiao-Lei.,Chen, Huayong.,...&Zhang, Feifei.(2023).A rapid onset of ocean acidification associated with the end-Permian mass extinction.GLOBAL AND PLANETARY CHANGE,225,9.
MLA Li, Rucao,et al."A rapid onset of ocean acidification associated with the end-Permian mass extinction".GLOBAL AND PLANETARY CHANGE 225(2023):9.

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来源：南京地质古生物研究所

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