CARBONATE URANIUM ISOTOPES RECORD OCEAN OXYGENATION IN THE EDIACARAN PORTFJELD GROUP, NORTH GREENLAND
THOMPSON, Samuel1, GAN, Tian2, PEDERSEN, Matthew3, DOERRLER, Andrew3, SEGESSENMAN, Daniel1, REMIREZ, Mariano1, RUGEN, Elias J.4, FREI, Robert5, KAUFMAN, Alan3 and GILLEAUDEAU, Geoffrey1, (1)Department of Atmospheric, Oceanic, and Earth Sciences, George Mason University, 4400 University Drive, Fairfax, VA 22032, (2)State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550081, China; Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, 8000 Regents Dr, College Park, MD 20742, (3)Department of Geology and Earth System Science Interdisciplinary Center, University of Maryland, 8000 Regents Dr, College Park, MD 20742, (4)UCL Earth Sciences, University College London, Gower Street, London, United Kingdom, (5)Department of Geosciences and Natural Resource Managment, University of Copenhagen, Nørregade 10, 1172 København, Denmark, Copenhagen, Denmark