A Stratified Redox Model for the Ediacaran Ocean

doi:10.1126/science.1182369

	A Stratified Redox Model for the Ediacaran Ocean
	Li, Chao 1; Love, Gordon D.1; Lyons, Timothy W.1; Fike, David A.2; Sessions, Alex L.3; Chu, Xuelei 4
刊名	SCIENCE
	2010-04-02
卷号	328 期号:5974 页码:80-83
ISSN号	0036-8075
DOI	10.1126/science.1182369
文献子类	Article
英文摘要	The Ediacaran Period (635 to 542 million years ago) was a time of fundamental environmental and evolutionary change, culminating in the first appearance of macroscopic animals. Here, we present a detailed spatial and temporal record of Ediacaran ocean chemistry for the Doushantuo Formation in the Nanhua Basin, South China. We find evidence for a metastable zone of euxinic (anoxic and sulfidic) waters impinging on the continental shelf and sandwiched within ferruginous [Fe(II)-enriched] deep waters. A stratified ocean with coeval oxic, sulfidic, and ferruginous zones, favored by overall low oceanic sulfate concentrations, was maintained dynamically throughout the Ediacaran Period. Our model reconciles seemingly conflicting geochemical redox conditions proposed previously for Ediacaran deep oceans and helps to explain the patchy temporal record of early metazoan fossils.
WOS关键词	SOUTH CHINA ; DOUSHANTUO FORMATION ; YANGTZE PLATFORM ; SULFATE ; OXYGENATION ; EVOLUTION ; OXIDATION ; ANIMALS ; EMBRYOS ; ROCKS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000276202200038
资助机构	NSF of China(EAR-0720362 ; NSF of China(EAR-0720362 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; EAR-0719493 ; EAR-0719493 ; 40532012) ; 40532012) ; NSF of China(EAR-0720362 ; NSF of China(EAR-0720362 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; EAR-0719493 ; EAR-0719493 ; 40532012) ; 40532012) ; NSF of China(EAR-0720362 ; NSF of China(EAR-0720362 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; EAR-0719493 ; EAR-0719493 ; 40532012) ; 40532012) ; NSF of China(EAR-0720362 ; NSF of China(EAR-0720362 ; Chinese Academy of Sciences(KZCX3-SW-141) ; Chinese Academy of Sciences(KZCX3-SW-141) ; NASA Astrobiology Institute ; NASA Astrobiology Institute ; Agouron Institute ; Agouron Institute ; EAR-0719493 ; EAR-0719493 ; 40532012) ; 40532012)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/72646]
专题	中国科学院地质与地球物理研究所
通讯作者	Li, Chao
作者单位	1.Univ Calif Riverside, Dept Earth Sci, Riverside, CA 92521 USA 2.Washington Univ, Dept Earth & Planetary Sci, St Louis, MO 63130 USA 3.CALTECH, Dept Geol & Planetary Sci, Pasadena, CA 91125 USA 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Li, Chao,Love, Gordon D.,Lyons, Timothy W.,et al. A Stratified Redox Model for the Ediacaran Ocean[J]. SCIENCE,2010,328(5974):80-83.
APA	Li, Chao,Love, Gordon D.,Lyons, Timothy W.,Fike, David A.,Sessions, Alex L.,&Chu, Xuelei.(2010).A Stratified Redox Model for the Ediacaran Ocean.SCIENCE,328(5974),80-83.
MLA	Li, Chao,et al."A Stratified Redox Model for the Ediacaran Ocean".SCIENCE 328.5974(2010):80-83.