NIGPAS OpenIR
Oceanic redox evolution across the end-Permian mass extinction at Penglaitan section, South China
Xiang, Lei(向雷)1,2; Schoepfer, Shane D.3; Yuan, Dong-Xun (袁东勋)4; Zheng, Quan-Feng(郑全峰)1,2; Zhang, Hua (张华)1,2
2022-03-01
发表期刊PALAEOWORLD
ISSN1871-174X
卷号31期号:1页码:93-102
摘要

The end-Permian mass extinction (EPME) was known as the most severe biocrisis of the past 600 Ma. In order to explore the redox state of deep water environments, and the causal relationship between anoxia/euxinia and the EPME, this study selected the Penglaitan section in Guangxi, China, and measured the iron speciation and concentrations of trace elements and major elements. Several redox proxy approaches, including both iron speciation proxies and the excess fractions and enrichment factors of redox sensitive elements (RSEs), indicate that anoxia in the Penglaitan depositional environment was sporadic, with the majority of the section deposited under oxic conditions. This includes the interval immediately prior to and during the EPME; euxinia did not occur at the Penglaitan section around the EPME. Thus, anoxia was not the primary driver for the EPME at the Penglaitan section, and the accumulation of free H2S in the oceanic water-column could not have been the only proximal kill mechanism for the EPME at the Penglaitan section. (C) 2021 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.

关键词iron speciation redox state end-Permian mass extinction Penglaitan
DOI10.1016/j.palwor.2021.02.003
收录类别SCI
语种英语
关键词[WOS]IRON PALEOREDOX PROXIES ; TRIASSIC BOUNDARY ; ISOTOPIC EVIDENCE ; FERRUGINOUS CONDITIONS ; ANOXIA ; EARTHS ; EVENT ; BIOSTRATIGRAPHY ; ACIDIFICATION ; DISTURBANCE
资助项目Strategic Priority Research Programs (B) of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Programs (B) of the Chinese Academy of Sciences[XDB18000000] ; National Natural Science Foundation of China[41502023] ; National Natural Science Foundation of China[U1702242] ; CAS[QYZDY-SSW-DQC023]
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000750714600004
项目资助者Strategic Priority Research Programs (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; CAS
出版者ELSEVIER
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/40399
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Hua (张华)
作者单位1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China
3.Western Carolina Univ, Dept Geosci & Nat Resources, 1 Univ Way, Cullowhee, NC 28779 USA
4.China Univ Min & Technol, Sch Resources & Geosci, Xuzhou 221116, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714
Xiang, Lei,Schoepfer, Shane D.,Yuan, Dong-Xun ,et al. Oceanic redox evolution across the end-Permian mass extinction at Penglaitan section, South China[J]. PALAEOWORLD,2022,31(1):93-102.
APA Xiang, Lei,Schoepfer, Shane D.,Yuan, Dong-Xun ,Zheng, Quan-Feng,&Zhang, Hua .(2022).Oceanic redox evolution across the end-Permian mass extinction at Penglaitan section, South China.PALAEOWORLD,31(1),93-102.
MLA Xiang, Lei,et al."Oceanic redox evolution across the end-Permian mass extinction at Penglaitan section, South China".PALAEOWORLD 31.1(2022):93-102.
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