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^(238)U/^(235)U in marine carbonates as a tracer of Precambrian paleoredox conditions

Chen, C. and Tissot, F. L. H. and Dauphas, N. and Bekker, A. and Halverson, G. P. and Veizer, J. (2018) ^(238)U/^(235)U in marine carbonates as a tracer of Precambrian paleoredox conditions. In: 49th Lunar and Planetary Science Conference, March 19-23, 2018, The Woodlands, TX.

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The timing and magnitude of the oxygenation of Earth’s ocean is still a matter of intense debate. Previous work suggested that the uranium isotope variations recorded in ancient marine sediments, such as shales and carbonates, could provide valuable insights into paleoredox conditions [e.g., 1-11]. In this work, we study U concentration and isotopic composition of a large number of Precambrian carbonates to place constraints on long-term variations in oceanic redox conditions.

Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription Website
Tissot, F. L. H.0000-0001-6622-2907
Dauphas, N.0000-0002-1330-2038
Additional Information:© 2018 Lunar and Planetary Institute.
Group:Division of Geological and Planetary Sciences
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Other Numbering System NameOther Numbering System ID
LPI Contribution2083
Record Number:CaltechAUTHORS:20180615-111710023
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:87158
Deposited By: Tony Diaz
Deposited On:15 Jun 2018 18:26
Last Modified:09 Mar 2020 13:18

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