Uranium in iron formations and the rise of atmospheric oxygen
نویسندگان
چکیده
a Dept. of Geological Sciences, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada b European Institute for Marine Studies (IUEM), UMR 6538, Technopôle Brest-Iroise, 29280 Plouzané, France c Department of Geology and Geophysics, Yale University, New Haven, CT 06520, USA d Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Centre de Brest, 29280 Plouzané, France e Dept. of Earth Sciences, University of California, Riverside, CA 92521, USA f Dept. of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G 2E3, Canada
منابع مشابه
Large-scale fluctuations in Precambrian atmospheric and oceanic oxygen levels from the record of U in shales
The atmosphere–ocean system experienced a progressive change from anoxic to more oxidizing conditions through time. This oxidation is traditionally envisaged to have occurred as two stepwise increases in atmospheric oxygen at the beginning and end of the Proterozoic Eon. Here, we present a study of the redox-sensitive element, uranium, in organic-rich shales to track the history of Earth's enri...
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