RAMPE, Elizabeth1, BRISTOW, Thomas F.2, BLAKE, David F.2, VANIMAN, David T.3, MING, Douglas W.1, MORRIS, Richard V.1, YEN, Albert S.4, CHIPERA, Steve3, DOWNS, Robert T.5, HAZEN, Robert M.6, TREIMAN, Allan7, ACHILLES, Cherie N.8, MORRISON, Shaunna6, GROTZINGER, John9, THORPE, Michael T.1, DES MARAIS, David J.2, CRAIG, Patricia I.3, CASTLE, Nicholas3, DOWNS, Gordon W.5, TU, Valerie10, PERETYAZHKO, Tanya S.10 and WILSON, Michael A.2, (1)NASA Johnson Space Center, 2101 NASA Pkwy, Houston, TX 77058, (2)NASA, Ames Research Center, Moffett Field, CA 94035, (3)Planetary Science Institute, Tucson, AZ 85719, (4)Jet Propulsion Laboratory, Pasadena, CA 91109, (5)University of Arizona, Tucson, AZ 85721, (6)Earth and Planets Laboratory, Carnegie Institution for Science, 5251 Broad Branch Road NW, Washington, DC 20015, (7)Lunar and Planetary Institute, Houston, TX 77058, (8)NASA GSFC, USRA, Greenbelt, MD 20771, (9)Caltech, Pasadena, CA 91125, (10)Jacobs, NASA Johnson Space Center, Houston, TX 77058