2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

GROTZINGER, John P., Earth and Planetary Sciences, Caltech, 1200 E. California Ave, Pasadena, CA 91125, HUROWITZ, Joel A., Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA, Stony Brook, NY 11794, BLAKE, David, NASA Ames Research Center, NASA Ames Research Center, MS 239, Moffett Field, CA 94035, FISCHER, Woodward W., Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, FRAEMAN, Abigail A., Division of Geological and Planetary Sciences, California Institute of Technology, 1200 E California Blvd. 170-25, Pasadena, CA 91106, GELLERT, Ralf, Dept. of Physics, University of Guelph, Guelph, ON N1G 2W1, Canada, MCLENNAN, Scott M., Department of Geoscience, State University of New York - Stony Brook, Stony Brook, NY 11794, SUMNER, Dawn, Geology Department, University of California, Davis, One Shields Avenue, Davis, CA 95616, VANIMAN, David, Planetary Science Institute, 1700 East Fort Lowell Road, Suite 106, Tucson, AZ 85719 and WIENS, R.C., Los Alamos National Laboratory, Los Alamos, NM 87545, grotz@gps.caltech.edu

SIEBACH, Kirsten L., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, GROTZINGER, John P., Earth and Planetary Sciences, Caltech, 1200 E. California Ave, Pasadena, CA 91125, MCLENNAN, S.M., Department of Geosciences, State University of New York - Stony Brook, Stony Brook, NY 11794-2100, BAKER, Michael B., Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, GELLERT, Ralf, Dept. of Physics, University of Guelph, Guelph, ON N1G 2W1, Canada, HUROWITZ, Joel A., Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA, Stony Brook, NY 11794 and BLANEY, Diana L., NASA Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, ksiebach@caltech.edu

BISH, David L., Department of Geological Sciences, Indiana University, 1001 East 10th Street, Bloomington, IN 47405 and MILLIKEN, Ralph E., Department of Earth, Environmental, and Planetary Sciences, Brown University, Box 1846, Providence, RI 02912, bish@indiana.edu

VANIMAN, David, Planetary Science Institute, 1700 East Fort Lowell Road, Suite 106, Tucson, AZ 85719, BLAKE, David, NASA Ames Research Center, NASA Ames Research Center, MS 239, Moffett Field, CA 94035, BRISTOW, Thomas F., Exobiology, NASA Ames Research Center, MS 239, Moffett Field, CA 94035, CHIPERA, Steve, Chesapeake Energy, Oklahoma City, OK 73154, GELLERT, Ralf, Dept. of Physics, University of Guelph, Guelph, ON N1G 2W1, Canada, MING, Douglas W., Astromaterials Research and Exploration Science Division, NASA Johnson Space Center, Mail Code XI, NASA Johnson Space Center, Houston, TX 77058, MORRIS, Richard, NASA Johnson Space Center, Houston, TX 77058, RAMPE, E.B., Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058 and RAPIN, William, IRAP/UPS, Toulouse, France, dvaniman@psi.edu

KAH, L.C., Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, KRONYAK, R.E., Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996-1410, MING, D.W., Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, GROTZINGER, J.P., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, SCHIEBER, J., Department of Geological Sciences, Indiana University, 1001 East 10th Street, Bloomington, IN 47405, SUMNER, D.Y., Geology, University of California, Davis, CA 95616 and EDGETT, K.S., Malin Space Science Systems, P.O. Box 90148, San Diego, CA 92191-0148, lckah@utk.edu

YOUNG, Brennan, Department of Geology and Geophysics, University of Utah, Geology & Geophysics Frederick Albert Sutton Building, 115 S 1460 E, Room 383, Salt Lake City, UT 84112-0102 and CHAN, Marjorie A., Department of Geology and Geophysics, University of Utah, 115 S 1460 E, Room 383 FASB, Salt Lake City, UT 84112, brennan1young@gmail.com

GELLERT, Ralf, Dept. of Physics, University of Guelph, Guelph, ON N1G 2W1, Canada, ARVIDSON, Raymond, Earth and Planetary Sciences, Washington University IN St. Louis, 1 Brookings Drive, St. Louis, MO 63130, CLARK III, Benton, Space Science Institute, Boulder, CO 80301, MING, Douglas W., Astromaterials Research and Exploration Science, NASA Johnson Space Center, Houston, TX 77058, MORRIS, Richard V., Astromaterials Research and Exploration Science Division, NASA Johnson Space Center, Mail Code XI, Houston, TX 77058, SQUYRES, Steven W., Astronomy, Cornell University, Ithaca, NY 14853 and YEN, Albert S., Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, rgellert@uoguelph.ca

THORPE, Michael T., Department of Geosciences, Stony Brook University, 255 Earth and Space Science Bldg, Stony Brook University, Stony Brook, NY 11794-2100 and HUROWITZ, Joel A., Department of Geosciences, Stony Brook University, Stony Brook, NY 11794-2100, USA, Stony Brook, NY 11794, michael.thorpe@stonybrook.edu

MCLENNAN, S.M., CINO, C.D. and DEHOUCK, E., Department of Geosciences, State University of New York - Stony Brook, Stony Brook, NY 11794-2100, scott.mclennan@stonybrook.edu

COLE, Shoshanna B., Department of Physics and Astronomy, Ithaca College, Center for Natural Sciences, Ithaca, NY 14850, CLARK III, Benton, Space Science Institute, Boulder, CO 80301, FARRAND, William H., Space Science Institute, 4750 Walnut Street, Boulder, CO 80301, HERKENHOFF, Kenneth E., US Geological Survey, 2255 N Gemini Dr, Flagstaff, AZ 86001-1698, MORRIS, Richard V., Astromaterials Research and Exploration Science Division, NASA Johnson Space Center, Mail Code XI, Houston, TX 77058, RUFF, Steven W., Arizona State University, Tempe, AZ 85287-6305, SQUYRES, Steven W., Astronomy, Cornell University, Ithaca, NY 14853 and YINGST, R. Aileen, Planetary Science Institute, 1700 E. Fort Lowell Rd., Suite 106, Tucson, AZ 85719, scole@ithaca.edu

FISCHER, Woodward W., Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, SLOTZNICK, Sarah P., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, JOHNSON, Jena, Geological and Planetary Sciences, Caltech, Pasadena, CA 91125, WEBB, Samuel M., Stanford Synchrotron Radiation Laboratory, Stanford Linear Accelerator Ctr, Building 137, MS 69, 2575 Sand Hill Road, Menlo Park, CA 94025, RASMUSSEN, Birger, Department of Applied Geology, Curtin University, Bentley, WA 6102, Australia, FIKE, David A., Earth and Planetary Sciences, Washington University in St. Louis, One Brookings Drive, Campus Box 1169, St Louis, MO 63130, RAUB, Timothy D., Department of Earth and Environmental Sciences, University of St. Andrews, Irvine Building, North Street, St. Andrews, KY16 9AL, United Kingdom and KIRSCHVINK, Joseph L., Division of Geological and Planetary Sciences, California Institute of Technology / ELSI, Tokyo Tech, 1200 E. California Blvd, MC 170-25, Pasadena, CA 91125, wfischer@caltech.edu

WALLACE, Adam F., Department of Geological Sciences, University of Delaware, 103 Penny Hall, Newark, DE 19716, SCHIFFBAUER, James D., Geological Sciences, University of Missouri, 101 Geological Sciences Building, Columbia, MO 65211 and MCEVOY, Brianna, Geological Sciences, University of Delaware, 103 Penny Hall, 255 Academy St., Newark, DE 19716, afw@udel.edu

TOSCA, Nicholas, Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom, PRUSS, Sara B., Department of Geosciences, Smith College, Northampton, MA 01063 and STRAUSS, Justin V., Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, nickt@earth.ox.ac.uk