Lori A Magruder, University of Texas at Austin, Austin, TX, United States, Kelly M Brunt, Goddard Earth Science Technology and Research, Greenbelt, MD, United States, Alex S Gardner, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Beata M Csatho, University at Buffalo, Department of Geology, Buffalo, NY, United States and Anton F Schenk, University at Buffalo, Buffalo, NY, United States