DOI: 10.1016/j.gloplacha.2012.12.008
论文题名: An oxygenation event occurred in deep shelf settings immediately after the end-Permian mass extinction in South China
作者: He L. ; Wang Y. ; Woods A. ; Li G. ; Yang H. ; Liao W.
刊名: Global and Planetary Change
ISSN: 0921-8324
出版年: 2013
卷: 101 起始页码: 72
结束页码: 81
语种: 英语
英文关键词: End-Permian mass extinction
; Oxygenation event
; Pyrite framboids
; South China
Scopus关键词: Bottom water
; end-Permian
; Hunan province
; Mass extinction
; Oceanic environments
; Partial remission
; Redox condition
; South China
; Geographical regions
; Oxygenation
; Seawater
; Geology
; anoxia
; marine environment
; mass extinction
; oxygenation
; Permian-Triassic boundary
; pyrite
; seawater
; upwelling
; China
; Hunan
英文摘要: Widespread oceanic anoxia has been consistently considered as a main characteristic of the oceanic environment after the end-Permian mass extinction. However, newly obtained pyrite framboid data suggest otherwise from a deep shelf setting (Changtanhe section) of northwestern Hunan province in South China. Our results reveal that an oxygenation event occurred immediately after the end-Permian mass extinction in this section, where the redox conditions of bottom water changed from lower dysoxic to upper dysoxic during the Permian-Triassic (P/Tr) transition. The oxygenation event likely resulted from mixing of deep dysoxic bottom waters with shallow, oxygenated waters triggered by enhanced upwelling and seawater circulation as well as the large regression during the P/Tr transition. These may also be the cause of the partial remission of dysoxic conditions immediately after the end-Permian mass extinction in other deep shelf settings, especially in South China. © 2012 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84872410646&doi=10.1016%2fj.gloplacha.2012.12.008&partnerID=40&md5=f7721561d57ac0074fa7bcbe89291ab3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11230
Appears in Collections: 全球变化的国际研究计划
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作者单位: State Key Laboratory of Geological Processes and Mineral resources, China University of Geosciences, Wuhan, Hubei 430074, China
Recommended Citation:
He L.,Wang Y.,Woods A.,et al. An oxygenation event occurred in deep shelf settings immediately after the end-Permian mass extinction in South China[J]. Global and Planetary Change,2013-01-01,101.