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• W2804823527 endingPage "90" @default.
• W2804823527 startingPage "78" @default.
• W2804823527 abstract "The late Neoproterozoic Era witnessed a significant oxygenation in Earth’s surface in line with the naissance and diversity of early animals; however, detailed variations of the oxygenation during this period remain controversial. Chromium-isotope in ancient carbonates has shown its ability to trace the oxygenation history of the atmosphere-hydrosphere system. In this study, we analyzed Cr-isotope and Ce-anomaly data of carbonates from the Ediacaran Doushantuo and Dengying formations in the Yangtze Gorges area, South China, in order to reconstruct oxygenation variations in the atmosphere and shallow seawaters of the Yangtze Platform during the Ediacaran Period. After evaluating and excluding detrital and diagenetic effects, well-preserved δ53Crauth signatures were obtained. Post-Marinoan carbonates record slightly positive δ53Crauth values (0.18–0.43‰) and slightly negative Ce-anomaly, suggesting generally oxidizing conditions in the atmosphere (with pO2 over 1% PAL) and in shallow seawaters of the Yangtze Platform during the post-Marinoan phase, which may have been related to the diversity of early Ediacaran organisms. Shuram/Wonoka correlative carbonates are characterized by the fluctuations of δ53Crauth values (−0.25 to 0.97‰) and a significant negative δ13C excursion, which may have resulted from partial oxidation of the large deep-water DOC reservoir under enhanced oxidative weathering conditions. This process released 13C-depleted carbon into DIC pool and isotopically unfractionated Cr (III) into water columns, the latter of which immediately precipitated by adsorption onto the detrital materials. Meanwhile, an increase in local anoxia (and even euxinia) in the intrashelf basin of the Yangtze Platform driven by enhanced microbial sulfate reduction and the resultant H2S, possibly limited regional biological evolution during this phase. Late Ediacaran carbonates record elevated δ53Crauth values (0.40–0.96‰) together with the decreasing trend in Ce/Ce∗ values, indicating a more oxygenated environment in the atmosphere and shallow seawaters of the Yangtze Platform during the late Ediacaran phase, which may have been beneficial to the diversification of late Ediacaran animals." @default.
• W2804823527 created "2018-06-01" @default.
• W2804823527 creator A5003799076 @default.
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• W2804823527 creator A5039962635 @default.
• W2804823527 creator A5070632576 @default.
• W2804823527 creator A5091792026 @default.
• W2804823527 date "2018-08-01" @default.
• W2804823527 modified "2023-10-14" @default.
• W2804823527 title "Oxygenation variations in the atmosphere and shallow seawaters of the Yangtze Platform during the Ediacaran Period: Clues from Cr-isotope and Ce-anomaly in carbonates" @default.
• W2804823527 cites W1560828235 @default.
• W2804823527 cites W1599324324 @default.
• W2804823527 cites W1631820701 @default.
• W2804823527 cites W1682777677 @default.
• W2804823527 cites W1772786931 @default.
• W2804823527 cites W1829457858 @default.
• W2804823527 cites W1965933371 @default.
• W2804823527 cites W1968486409 @default.
• W2804823527 cites W1972548568 @default.
• W2804823527 cites W1972761036 @default.
• W2804823527 cites W1972857233 @default.
• W2804823527 cites W1974045653 @default.
• W2804823527 cites W1977451005 @default.
• W2804823527 cites W1978255350 @default.
• W2804823527 cites W1979315982 @default.
• W2804823527 cites W1980270634 @default.
• W2804823527 cites W1981063809 @default.
• W2804823527 cites W1982404483 @default.
• W2804823527 cites W1983326851 @default.
• W2804823527 cites W1983714620 @default.
• W2804823527 cites W1985317544 @default.
• W2804823527 cites W1985458454 @default.
• W2804823527 cites W1987125639 @default.
• W2804823527 cites W1988323425 @default.
• W2804823527 cites W1988680430 @default.
• W2804823527 cites W1990661158 @default.
• W2804823527 cites W1991473661 @default.
• W2804823527 cites W1994160943 @default.
• W2804823527 cites W1994318444 @default.
• W2804823527 cites W1994930702 @default.
• W2804823527 cites W1997724812 @default.
• W2804823527 cites W1997905954 @default.
• W2804823527 cites W2004301987 @default.
• W2804823527 cites W2005604628 @default.
• W2804823527 cites W2008995300 @default.
• W2804823527 cites W2009658086 @default.
• W2804823527 cites W2011801766 @default.
• W2804823527 cites W2013528197 @default.
• W2804823527 cites W2013645627 @default.
• W2804823527 cites W2016379558 @default.
• W2804823527 cites W2018134771 @default.
• W2804823527 cites W2020434687 @default.
• W2804823527 cites W2020610733 @default.
• W2804823527 cites W2021227753 @default.
• W2804823527 cites W2022885774 @default.
• W2804823527 cites W2023840790 @default.
• W2804823527 cites W2024004860 @default.
• W2804823527 cites W2024627509 @default.
• W2804823527 cites W2024690990 @default.
• W2804823527 cites W2027643014 @default.
• W2804823527 cites W2032698695 @default.
• W2804823527 cites W2037119484 @default.
• W2804823527 cites W2037419245 @default.
• W2804823527 cites W2038214656 @default.
• W2804823527 cites W2042009224 @default.
• W2804823527 cites W2042131576 @default.
• W2804823527 cites W2042155317 @default.
• W2804823527 cites W2043738902 @default.
• W2804823527 cites W2044165871 @default.
• W2804823527 cites W2044169207 @default.
• W2804823527 cites W2053286432 @default.
• W2804823527 cites W2054524404 @default.
• W2804823527 cites W2057252645 @default.
• W2804823527 cites W2057391595 @default.
• W2804823527 cites W2059530396 @default.
• W2804823527 cites W2060009405 @default.
• W2804823527 cites W2060563278 @default.
• W2804823527 cites W2062900030 @default.
• W2804823527 cites W2064718526 @default.
• W2804823527 cites W2066760610 @default.
• W2804823527 cites W2070822025 @default.
• W2804823527 cites W2071759770 @default.
• W2804823527 cites W2073204544 @default.
• W2804823527 cites W2073448816 @default.
• W2804823527 cites W2073562922 @default.
• W2804823527 cites W2074334185 @default.
• W2804823527 cites W2076897940 @default.
• W2804823527 cites W2078843984 @default.
• W2804823527 cites W2081614356 @default.
• W2804823527 cites W2082374730 @default.
• W2804823527 cites W2085487206 @default.
• W2804823527 cites W2086997115 @default.
• W2804823527 cites W208714008 @default.
• W2804823527 cites W2089038963 @default.
• W2804823527 cites W2090690614 @default.
• W2804823527 cites W2092008995 @default.

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