Constraining the redox landscape of the mid-Proterozoic oceans: new insights from the carbonate uranium isotope record

Geoffrey J Gilleaudeau1, Alan Jay Kaufman2, Genming Luo3, Stephen J Romaniello1, Feifei Zhang1, Linda C Kah4, Karem Azmy5, Julie K Bartley6, Swapan K Sahoo7, Andrew H Knoll8 and Ariel D Anbar9, (1)Arizona State University, Tempe, AZ, United States, (2)Univ Maryland, Ashton, MD, United States, (3)China University of Geosciences Wuhan, Wuhan, China, (4)Univ of Tennesse, Knoxville, TN, United States, (5)Memorial University of Newfoundland, Department of Earth Sciences, St John's, Canada, (6)Gustavus Adolphus College, Geology, Saint Peter, MN, United States, (7)Univ of Nevada, Las Vegas, NV, United States, (8)Harvard University, Department of Organismic and Evolutionary Biology, Cambridhe, MA, United States, (9)Arizona State University, Center for Education Through eXploration, School of Earth and Space Exploration, Tempe, AZ, United States