Global marine redox evolution from the late Neoproterozoic to the early Paleozoic constrained by the integration of Mo and U isotope records
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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受钼、铀同位素记录整合制约的新元古代晚期到古生代早期全球海洋氧化还原演化
DOI：
10.1016/j.earscirev.2021.103506
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发表时间：
2021-03
影响因子：
12.1
通讯作者：
Hong-Fei Ling
中科院分区：
文献类型：
--
作者：
Guang-Yi Wei;Noah J. Planavsky;Tianchen He;Feifei Zhang;Richard G. Stockey;Devon B. Cole;Yi-Bo Lin;Hong-Fei Ling
早期动物的出现和多样化通常被认为与新元古代末期和古生代早期的大气和海洋氧合相吻合，在此期间，地球表面的氧气水平足以支持海洋中早期多细胞后生动物的新陈代谢。虽然地表含氧量可能在整个古生代期间普遍上升，但这一时期的海洋含氧量仍然存在争议，而且缺乏约束。虽然该社区正在积极开发高时间分辨率的海洋沉积物中氧化还原代理记录，但这些记录如何用于重建全球海洋氧化还原景观仍存在不确定性。在这篇综述中，我们整理了新发表的新元古代晚期到早古生代（约1000年）的钼和铀同位素数据。680-480 Ma），以提供对全球海洋氧化还原状态长期变化的最新看法以及这些变化的潜在驱动因素。Mo和U同位素记录的整合表明，从新元古代晚期到寒武纪，全球海洋氧化还原状态从普遍的缺氧状态逐渐过渡到高度动态的状态。通过对比碳、硫、氮、铀同位素记录，利用地球化学盒模型再现碳、硫、铀同位素记录的变化，进一步研究了早寒武世海洋氧化还原景观。海洋初级生产力的变化在相对较低的大气氧水平，提出了一个一级控制的早寒武世海洋氧化还原动力学。
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 timeresolution 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.
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影响因子：
3.8
作者：
E. Scheller;A. Dickson;D. Canfield;C. Korte;K. Kristiansen;T. Dahl
通讯作者：
E. Scheller;A. Dickson;D. Canfield;C. Korte;K. Kristiansen;T. Dahl
影响因子：
5.3
作者：
M. B. Andersen;A. Matthews;D. Vance;M. Bar-Matthews;C. Archer;G. F. D. Souza
通讯作者：
M. B. Andersen;A. Matthews;D. Vance;M. Bar-Matthews;C. Archer;G. F. D. Souza
影响因子：
5.3
作者：
Michelle L. Abshire;S. Romaniello;Amy Kuzminov;J. Cofrancesco;S. Severmann;N. Riedinger
通讯作者：
Michelle L. Abshire;S. Romaniello;Amy Kuzminov;J. Cofrancesco;S. Severmann;N. Riedinger
影响因子：
5.4
作者：
Danovaro R;Dell'Anno A;Pusceddu A;Gambi C;Heiner I;Kristensen RM
通讯作者：
Kristensen RM
影响因子：
5
作者：
Chen, Xinming;Romaniello, Stephen J.;Anbar, Ariel D.
通讯作者：
Anbar, Ariel D.