NIGPAS OpenIR  > 中国科学院南京地质古生物研究所
Pulsed oxidation and bioloical evolution in the Ediacaran Doushantuo Formation
McFadden, Kathleen A.2; Huang, Jing1; Chu, Xuelei1; Jiang, Ganqing3; Kaufman, Alan J.4; Zhou, Chuanming (周传明)5; Yuan, Xunlai (袁训来)5; Xiao, Shuhai2
2008-03-04
Source PublicationPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
ISSN0027-8424
Volume105Issue:9Pages:3197-3202
Abstract

Recent geochemical data from Oman, Newfoundland, and the western United States suggest that long-term oxidation of Ediacaran oceans resulted in progressive depletion of a large dissolved organic carbon (DOC) reservoir and potentially triggered the radiation of acanthomorphic acritarchs, algae, macroscopic Ediacara organisms, and, subsequently, motile bilaterian animals. However, the hypothesized coupling between ocean oxidation and evolution is contingent on the reliability of continuous geochemical and paleontological data in individual sections and of intercontinental correlations. Here we report high-resolution geochemical data from the fossil-rich Doushantuo Formation (635-551 Ma) in South China that confirm trends from other broadly equivalent sections and highlight key features that have not been observed in most sections or have received little attention. First, samples from the lower Doushantuo Formation are characterized by remarkably stable delta C-13(org) (carbon isotope composition of organic carbon) values but variable delta S-34(CAS) (sulfur isotope composition of carbonate-associated sulfate) values, which are consistent with a large isotopically buffered DOC reservoir and relatively low sulfate concentrations. Second, there are three profound negative delta C-13(carb) (carbon isotope composition of carbonate) excursions in the Ediacaran Period. The negative delta C-13(carb) excursions in the middle and upper Doushantuo Formation record pulsed oxidation of the deep oceanic DOC reservoir. The oxidation events appear to be coupled with eukaryote diversity in the Doushantuo basin. Comparison with other early Ediacaran basins suggests spatial heterogeneity of eukaryote distribution and redox conditions. We hypothesize that the distribution of early Ediacaran eukaryotes likely tracked redox conditions and that only after approximate to 551 Ma (when Ediacaran oceans were pervasively oxidized) did evolution of oxygen-requiring taxa reach global distribution.

KeywordAcritarchs Isotopes Redox Neoproterozoic Early Animals
DOI10.1073/pnas.0708336105
Language英语
WOS KeywordSouth China ; Yangtze Platform ; Isotope Anomalies ; Cap Carbonates ; Marine Sulfate ; Death-valley ; Sulfur ; Seawater ; Fossils ; Ocean
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000253846500007
PublisherNATL ACAD SCIENCES
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/182
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorChu, Xuelei
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Virginia Polytech Inst & State Univ, Dept Geosci, Blacksburg, VA 24061 USA
3.Univ Nevada, Dept Geosci, Las Vegas, NV 89154 USA
4.Univ Maryland, Dept Geol, College Pk, MD 20742 USA
5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
McFadden, Kathleen A.,Huang, Jing,Chu, Xuelei,et al. Pulsed oxidation and bioloical evolution in the Ediacaran Doushantuo Formation[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2008,105(9):3197-3202.
APA McFadden, Kathleen A..,Huang, Jing.,Chu, Xuelei.,Jiang, Ganqing.,Kaufman, Alan J..,...&Xiao, Shuhai.(2008).Pulsed oxidation and bioloical evolution in the Ediacaran Doushantuo Formation.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,105(9),3197-3202.
MLA McFadden, Kathleen A.,et al."Pulsed oxidation and bioloical evolution in the Ediacaran Doushantuo Formation".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 105.9(2008):3197-3202.
Files in This Item:
File Name/Size DocType Version Access License
72.pdf(484KB)期刊论文出版稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[McFadden, Kathleen A.]'s Articles
[Huang, Jing]'s Articles
[Chu, Xuelei]'s Articles
Baidu academic
Similar articles in Baidu academic
[McFadden, Kathleen A.]'s Articles
[Huang, Jing]'s Articles
[Chu, Xuelei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[McFadden, Kathleen A.]'s Articles
[Huang, Jing]'s Articles
[Chu, Xuelei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.