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Kerogen-specific isotope variations during the end-Permian mass extinction in South China

文献类型：期刊论文

作者Jiang, Lei9,10,11,12; Cai, Chunfang9,10,12; Xiang, Lei7,8; Fan, Junxuan5,6; Li, Kaikai4; Cai, Liulu3; Algeo, Thomas J.1,2; Zhang, Feifei5,6
刊名EARTH-SCIENCE REVIEWS
出版日期2022-03-01
卷号226页码:15
关键词Kerogen Pyrite CAS delta S-34 delta H-2 delta C-13 End-Permian mass extinction South China
ISSN号0012-8252
DOI10.1016/j.earscirev.2021.103912
通讯作者Jiang, Lei(lei.jiang@mail.iggcas.ac.cn) ; Cai, Chunfang(cai_cf@mail.iggcas.ac.cn)
英文摘要Sulfur isotopic variation has been widely used to study the environmental backdrop of the end-Permian mass extinction (EPME), although research to date has focused mostly on carbonate-associated sulfate (CAS) and pyrite. Study of the delta S-34 of kerogen, as well as of its H- and C-isotopic compositions, is relatively rare, although such data have the potential to shed new light on our understanding of the proximate driver of the EPME event. Here, we report paired delta S-34(pyrite) and delta S-34(kerogen) values for three widely spaced end-Permian marine sections from South China (Meishan, Shangsi, and Guanzi) that represent a transect from upper-slope (shallow-water) to basinal (deep-water) facies, as well as additional data for Meishan (i.e., delta S-34(CAS), delta H-2(kerogen), and delta C-13(kerogen)). Our results show that oxidation of isotopically light H2S in upwelled anoxic watermasses led to negative shifts of delta S-34(CAS), delta S-34(kerogen) and delta S-34(pyrite) in the ocean-surface layer during the Late Permian, and an increase of Delta S-34(CAS-kerogen) in the upper-slope Meishan section. High Delta S-34(kerogen-pyrite) (>10 parts per thousand) in the Meishan section indicates that slow pyritization occurred considerably below the sediment-water interface. In contrast, the lower-slope Shangsi and deep-water Guanzi sections show more negative delta S-34 values for both kerogen and pyrite, with smaller Delta S-34(kerogen-pyrite) (mainly 5-10 parts per thousand), implying open-system microbial sulfate reduction (MSR) in an anoxic deep watermass. A large negative shift in delta H-2(kerogen) from the uppermost Permian to the lowermost Triassic is most plausibly attributed to increased sedimentation rates and organic matter inputs due to collapse of terrestrial ecosystems. High sedimentation rates may have been contributed to observed subsequent increase of (poly) sulfide delta S-34 within the Lower Triassic in shallow-water facies. Our study thus demonstrates the utility of integrated analysis of S-isotopes in pyrite, kerogen, and CAS, coupled with H- and C-isotopic data of kerogen for tracking dynamic environmental changes during the Permian-Triassic transition and possibly other major events in Earth history.
WOS关键词PHOTIC-ZONE EUXINIA ; TRIASSIC BOUNDARY ; SEAWATER SULFATE ; ORGANIC-MATTER ; OCEANIC ANOXIA ; SULFUR-DIOXIDE ; MARINE ANOXIA ; CARBON-CYCLE ; 2 EPISODES ; DISPROPORTIONATION
资助项目National Science Foundation of China[41730424] ; National Science Foundation of China[41961144023] ; National Science Foundation of China[41972149] ; National Science Foundation of China[41890843] ; National Science Foundation of China[42073002] ; National Key Research and Development Project[2019YFB1504101] ; PetroChina Innovation Foundation ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018088] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; Fundamental Research Funds for the Central Universities[0206-14380125] ; Frontiers Science Center for Critical Earth Material Cycling Fund[DLTD2102]
WOS研究方向Geology
语种英语
WOS记录号WOS:000820116600001
出版者ELSEVIER
资助机构National Science Foundation of China ; National Key Research and Development Project ; PetroChina Innovation Foundation ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; 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/332004/40998]  
专题中国科学院南京地质古生物研究所
通讯作者Jiang, Lei; Cai, Chunfang
作者单位1.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA
2.China Univ Geosci, State Key Labs GPMR & BGEG, Wuhan 430074, Peoples R China
3.GRINM Resources & Environm Tech Co Ltd, Beijing 101407, Peoples R China
4.China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
5.Nanjing Univ, Frontiers Sci Ctr Crit Earth Mat Cycling, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China
6.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China
7.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China
8.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
9.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
10.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Lei,Cai, Chunfang,Xiang, Lei,et al. Kerogen-specific isotope variations during the end-Permian mass extinction in South China[J]. EARTH-SCIENCE REVIEWS,2022,226:15.
APA Jiang, Lei.,Cai, Chunfang.,Xiang, Lei.,Fan, Junxuan.,Li, Kaikai.,...&Zhang, Feifei.(2022).Kerogen-specific isotope variations during the end-Permian mass extinction in South China.EARTH-SCIENCE REVIEWS,226,15.
MLA Jiang, Lei,et al."Kerogen-specific isotope variations during the end-Permian mass extinction in South China".EARTH-SCIENCE REVIEWS 226(2022):15.

入库方式： OAI收割

来源：南京地质古生物研究所

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