NEWSOM, Horton E., Institute of Meteoritics, University of New Mexico, Albuquerque, NM 87131, GASNAULT, Olivier, Institut de Recherche en Astrophysique et Planetologie, Toulouse, 31028, France, LE MOUÉLIC, Stéphane, Laboratoire de Planetologie et Geodynamique, CNRS/Université de Nantes, 2 rue de la Houssiniere, BP 92208, 44322 Nantes cedex 3 France, Nantes, 92208, France, MANGOLD, N., Laboratoire de Planetologie et Geodynamique de Nantes, University of Nantes, France, Nantes, 44322, France, LE DEIT, Laetitia, Laboratoire de Planétologie et Géodynamique, LPG-Nantes, UMR CNRS 6112, University of Nantes, 2 chemin de la Houssinière, Nantes, 44322, France, WIENS, R.C., Los Alamos National Laboratory, Los Alamos, NM 87545, ANDERSON, Ryan B., USGS, Flagstaff, AZ 86001, EDGAR, Lauren A., U.S. Geological Survey, Astrogeology Science Center, 2255 N. Gemini Drive, Flagstaff, AZ 86001, HERKENHOFF, Ken E., USGS Astrogeology Team, 2255 N. Gemini Drive, Flagstaff, AZ 86001, JOHNSON, Jeffrey R., Applied Physics Laboratory, Johns Hopkins University, 11100 Johns Hopkins Road, MP3-E169, Laurel, MD 20723, JACOB, Samantha R., Geology & Geophysics, University of Hawai'i at Manoa, 1680 East West Rd, POST 615, Honolulu, HI 96822, GUPTA, Sanjeev, Earth Science and Engineering, Imperial College London, South Kensington Campus, London, SW7 2AZ, United Kingdom, GROTZINGER, John P., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125 and BRIDGES, Nathan T., Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723, newsom@unm.edu