Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Li, Rucao1; Shen, Shu-Zhong2; Xia, Xiao-Ping3; Xiao, Bing4; Feng, Yuzhou4; Chen, Huayong4
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| Atmospheric ozone destruction and the end-Permian crisis: Evidence from multiple sulfur isotopes | |
| Source Publication | CHEMICAL GEOLOGY
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| ISSN | 0009-2541 |
| 2024-03-05 | |
| Volume | 647Pages:8 |
| DOI | 10.1016/j.chemgeo.2024.121936 |
| Language | 英语 |
| WOS Research Area | Geochemistry & Geophysics |
| Abstract | The end-Permian mass extinction (EPME) is considered the largest biotic crisis of the Phanerozoic. To explain the worldwide destruction and mutation of land plants, previous work has emphasized the role of enhanced UV irradiation linked to volcanism-induced disruption of the ozone shield. However, direct evidence for a link between volcanic SO2 emission and stratospheric ozone deterioration is missing. Previous bulk analysis (i.e., SF6 method) found no Mass-Independent Fractionation of sulfur isotopes (MIF-S, noted A33S). However, possible grain scale sulfur isotope anomaly can be easily overlooked during bulk analysis. To detect possible sulfur isotope anomaly in grain scale, we applied in-situ multiple sulfur isotope analysis of the sulfide using secondary ion mass spectrometry (SIMS). We found a marked positive shift (higher than +0.30%o and up to +0.94%o) just before the end-Permian extinction in the Meishan section. Modelling shows that these positive A33S anomalies cannot be explained by Mass Dependent Fractionation (MDF) processes alone, rather by UV-induced photolysis of volcanic SO2. The formation and preservation of MIF-S anomalies in the atmosphere and subsequent transport to the oceans require intense and prolonged irradiation of the Earth's surface with solar UV, thus fingerprinting severe disruption of the atmospheric ozone balance at the onset of Earth's largest mass extinction. |
| Keyword | Ozone destruction Sulfur isotope EPME SIMS |
| WOS ID | WOS:001167530900001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/77395 |
| Collection | 同位素地球化学国家重点实验室 |
| Corresponding Author | Chen, Huayong |
| Affiliation | 1.Shandong Univ Sci & Technol, Coll Earth Sci & Engn, Qingdao 266590, Peoples R China 2.Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineral Deposits Res, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510604, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Rucao,Shen, Shu-Zhong,Xia, Xiao-Ping,et al. Atmospheric ozone destruction and the end-Permian crisis: Evidence from multiple sulfur isotopes[J]. CHEMICAL GEOLOGY,2024,647:8. |
| APA | Li, Rucao,Shen, Shu-Zhong,Xia, Xiao-Ping,Xiao, Bing,Feng, Yuzhou,&Chen, Huayong.(2024).Atmospheric ozone destruction and the end-Permian crisis: Evidence from multiple sulfur isotopes.CHEMICAL GEOLOGY,647,8. |
| MLA | Li, Rucao,et al."Atmospheric ozone destruction and the end-Permian crisis: Evidence from multiple sulfur isotopes".CHEMICAL GEOLOGY 647(2024):8. |
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