Marine redox evolution and organic accumulation in an intrashelf basin, NE Sichuan Basin during the Late Permian
文献类型：期刊论文
| 作者 | Ge, Xiaotong2,3,6; Chen, Daizhao2,3,6; Zhang, Gongjing2,3,5,6; Huang, Taiyu2,3,4,6; Liu, Mu2,3; El-Shafeiy, Moataz1,2,3 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 140页码:15 |
| 关键词 | Late Permian Organic accumulation Redox condition Marine productivity Sea-level change |
| ISSN号 | 0264-8172 |
| DOI | 10.1016/j.marpetgeo.2022.105633 |
| 英文摘要 | The Late Permian oceanic redox conditions are suggested to have had a causal relationship with the latest Permian mass extinction (LPME); however, the tempo-spatial variations of marine redox conditions which could have controlled environmental context of the LPME and organic accumulation remain loosely constrained. Here, we selected an organic-rich Lopingian succession deposited in an intrashelf basin, NE Sichuan Basin, SW China. To document the coeval oceanic changes, we present multiple geochemical proxies, including iron speciation, (major and trace) element contents, mercury (Hg) contents, total organic carbon contents (TOC) and carbonate carbon isotopic composition. Four intervals (I-IV) of discrete redox conditions were identified based on Fe-Mo-U-V datasets, revealing the evolutions from oxic to euxinic, and further to ferruginous conditions. Meanwhile, the primary productivity increased, then decreased in these intervals. The euxinic water wedge appeared in parallel with the high primary productivity and enrichment of organic matter, and advanced upslope and retreated downslope dynamically in the pace of sea-level rise and fall. In this case, marine redox variations were related to interactions of eustatic changes, organic decomposition, paleogeographic setting, upwelling currents, terrigenous input and volcanic activities. Compared with previous studies from other continents, it seems that the Paleo-Tethys was more anoxic and stagnant than Neo-Tethys and Panthalassa during the Late Permian, due to paleogeographic contexts and the more restricted oceanic circulation. In general, the prominent marine anoxia prevailed in the moderate water depth, and predated the major pulse of the LPME in several sections, which implies that anoxia may have not acted as the direct "killing mechanism" of this event. |
| WOS关键词 | EDIACARAN-CAMBRIAN TRANSITION ; SOUTH CHINA CONSTRAINTS ; TRIASSIC BOUNDARY ; MASS EXTINCTION ; WATER-COLUMN ; DEEP-WATER ; FERRUGINOUS CONDITIONS ; OCEAN ACIDIFICATION ; MERCURY ENRICHMENTS ; ISOTOPIC EVIDENCE |
| 资助项目 | National Natural Science Foundation of China[91755210] ; National Key Research and Development (R AMP; D) Program of China[2017YFC0603103] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000793130700001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China ; National Key Research and Development (R AMP; D) Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105902]  |
| 专题 | 地质与地球物理研究所_中国科学院新生代地质与环境重点实验室 |
| 通讯作者 | Chen, Daizhao |
| 作者单位 | 1.Cairo Univ, Fac Sci, Geol Dept, Giza 12613, Egypt 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 4.China Natl Adm Coal Geol, Gen Prospecting Inst, Beijing 100039, Peoples R China 5.Taiyuan Univ Technol, Dept Earth Sci & Engn, Shanxi Key Lab Coal & Coal Measure Gas Geol, Taiyuan 030024, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ge, Xiaotong,Chen, Daizhao,Zhang, Gongjing,et al. Marine redox evolution and organic accumulation in an intrashelf basin, NE Sichuan Basin during the Late Permian[J]. MARINE AND PETROLEUM GEOLOGY,2022,140:15. |
| APA | Ge, Xiaotong,Chen, Daizhao,Zhang, Gongjing,Huang, Taiyu,Liu, Mu,&El-Shafeiy, Moataz.(2022).Marine redox evolution and organic accumulation in an intrashelf basin, NE Sichuan Basin during the Late Permian.MARINE AND PETROLEUM GEOLOGY,140,15. |
| MLA | Ge, Xiaotong,et al."Marine redox evolution and organic accumulation in an intrashelf basin, NE Sichuan Basin during the Late Permian".MARINE AND PETROLEUM GEOLOGY 140(2022):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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