Oxidative Weathering of Earth’s Surface 3.7 Billion Years ago? - A Chromium Isotope Perspective 

Robert Frei, University of Copenhagen, Geoscience and Natural Resource Management, København K, Denmark, Sean Crowe, University of British Columbia, Department of Microbiology and Immunology, Vancouver, BC, Canada, Michael Bau, Jacobs University, Department of Physics and Earth Science, Bremen, Germany, Ali Polat, University of Windsor, Windsor, ON, Canada, David A Fowle, Kansas State University, Manhattan, KS, United States and Lasse N. Døssing, University of Copenhagen, Copenhagen, Denmark