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DOI | 10.1073/pnas.1610931114 |
Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery | |
Zhang, Guijie1; Zhang, Xiaolin1; Hu, Dongping1; Li, Dandan1; Algeo, Thomas J.2; Farquhar, James3; Henderson, Charles M.4; Qin, Liping1; Shen, Megan5; Shen, Danielle5; Schoepfer, Shane D.4; Chen, Kefan1; Shen, Yanan1 | |
2017-02-21 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
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ISSN | 0027-8424 |
出版年 | 2017 |
卷号 | 114期号:8页码:1806-1810 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Canada |
英文摘要 | The end-Permian mass extinction represents the most severe biotic crisis for the last 540 million years, and the marine ecosystem recovery from this extinction was protracted, spanning the entirety of the Early Triassic and possibly longer. Numerous studies from the low-latitude Paleotethys and high-latitude Boreal oceans have examined the possible link between ocean chemistry changes and the end-Permian mass extinction. However, redox chemistry changes in the Panthalassic Ocean, comprising similar to 85-90% of the global ocean area, remain under debate. Here, we report multiple S-isotopic data of pyrite from Upper Permian-Lower Triassic deepsea sediments of the Panthalassic Ocean, nowpresent in outcrops of western Canada and Japan. We find a sulfur isotope signal of negative. Delta S-33 with either positive delta S-34 or negative delta S-34 that implies mixing of sulfide sulfur with different delta S-34 before, during, and after the end-Permian mass extinction. The precise coincidence of the negative. Delta S-33 anomaly with the extinction horizon in western Canada suggests that shoaling of H2S-rich waters may have driven the end-Permian mass extinction. Our data also imply episodic euxinia and oscillations between sulfidic and oxic conditions during the earliest Triassic, providing evidence of a causal link between incursion of sulfidic waters and the delayed recovery of the marine ecosystem. |
英文关键词 | end-Permian mass extinction Panthalassic Ocean multiple sulfur isotopes sulfidic waters |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395099500048 |
WOS关键词 | DISSIMILATORY SULFATE REDUCTION ; ISOTOPE FRACTIONATION ; UPWELLING SYSTEM ; SULFUR ISOTOPES ; BOUNDARY ; EVENT ; JAPAN ; DISPROPORTIONATION ; CANADA ; BASIN |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204853 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei 230026, Peoples R China; 2.Univ Cincinnati, Dept Geol, Cincinnati, OH 45221 USA; 3.Univ Maryland, Dept Geol Earth Syst Sci Interdisciplinary, College Pk, MD 20742 USA; 4.Univ Calgary, Dept Geosci, Calgary, AB T2N IN4, Canada; 5.Thomas S Wootton High Sch, Rockville, MD 20850 USA |
推荐引用方式 GB/T 7714 | Zhang, Guijie,Zhang, Xiaolin,Hu, Dongping,et al. Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2017,114(8):1806-1810. |
APA | Zhang, Guijie.,Zhang, Xiaolin.,Hu, Dongping.,Li, Dandan.,Algeo, Thomas J..,...&Shen, Yanan.(2017).Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,114(8),1806-1810. |
MLA | Zhang, Guijie,et al."Redox chemistry changes in the Panthalassic Ocean linked to the end-Permian mass extinction and delayed Early Triassic biotic recovery".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 114.8(2017):1806-1810. |
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