Uranium Isotope Compositions of Mid-Proterozoic Organic-rich Mudrocks: Evidence for an Episode of Increased Ocean Oxygenation at ca. 1.36 Ga and Evaluation of the Effect of Post-Depositional Hydrothermal Fluid Flow

Brian Kendall1, Shuai Yang2, Xinze Lyu1, Feifei Zhang3 and Wang Zheng4, (1)University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada, (2)Southwest Petroleum University, School of Geoscience and Technology, Chengdu, China, (3)Nanjing University, Nanjing, China, (4)Arizona State University, Tempe, AZ, United States