Magnetite Authigenesis and the Ancient Martian Atmosphere

Nicholas James Tosca1, Imad A. Ahmed2, Alice Ashpitel2 and Joel Hurowitz3, (1)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (2)University of Oxford, Earth Sciences, Oxford, United Kingdom, (3)Stony Brook University, Geosciences, Stony Brook, NY, United States