气候变化领域集成服务门户(CCPortal): Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records

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DOI	10.1016/j.earscirev.2021.103506
	Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records
	Wei G.-Y.; Planavsky N.J.; He T.; Zhang F.; Stockey R.G.; Cole D.B.; Lin Y.-B.; Ling H.-F.
发表日期	2021
ISSN	00128252
卷号	214
英文摘要	The emergence and diversification of early animals is commonly thought to have coincided with atmosphere and ocean oxygenation across the terminal Neoproterozoic and early Paleozoic, during which oxygen levels on Earth's surface were sufficient to support the metabolism of early multicellular metazoans in the ocean. Although surface oxygen levels are likely to have broadly risen through the Paleozoic, ocean oxygenation levels during this period are still disputed and poorly constrained. While the community is actively developing high time-resolution records of redox proxies in marine sediments, uncertainties remain about how these records can be used to reconstruct the global marine redox landscape. In this review, we compile newly published molybdenum and uranium isotope data from the late Neoproterozoic to the early Paleozoic (ca. 680–480 Ma) to provide an updated look at the secular changes in global ocean redox state and the potential drivers of these shifts. Integrations of Mo and U isotope records suggest a gradual transition from a pervasive anoxic condition to a highly dynamic condition for global marine redox state from the late Neoproterozoic to the Cambrian. We further concentrate on the marine redox landscape of early Cambrian, by comparing the carbon, sulfur, nitrogen and uranium isotope records and reproducing the variations in carbon-sulfur-uranium isotope records with biogeochemical box models. Changes in marine primary productivity under a relatively low atmospheric oxygen level, are proposed to play a first-order control on the early Cambrian ocean redox dynamics. © 2021 Elsevier B.V.
关键词	Cambrian explosion late Neoproterozoic marine redox state molybdenum–uranium isotope primary productivity
英文关键词	biogeochemistry; marine sediment; metazoan; molybdenum; oxygenation; paleoceanography; Paleozoic; primary production; Proterozoic; redox conditions; uranium isotope; Metazoa
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204166
作者单位	State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China; Centre for Research and Education on Biological Evolution and Environment, Nanjing University, Nanjing, 210023, China; Department of Earth and Planetary Sciences, Yale University, New Haven, CT, United States; School of Earth and Environment, University of Leeds, Leeds, United Kingdom; State Key Laboratory of Palaeobiology and Stratigraphy & Center for Excellence in Life and Paleoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China; Department of Geological Sciences, Stanford University, Stanford, CA 94305, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States
推荐引用方式 GB/T 7714	Wei G.-Y.,Planavsky N.J.,He T.,et al. Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records[J],2021,214.
APA	Wei G.-Y..,Planavsky N.J..,He T..,Zhang F..,Stockey R.G..,...&Ling H.-F..(2021).Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records.Earth Science Reviews,214.
MLA	Wei G.-Y.,et al."Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records".Earth Science Reviews 214(2021).