WEINMAN, Beth, California State University, Fresno, Earth and Environmental Sciences, 2576 East San Ramon Ave. M/S ST24, Fresno, CA 93740, YOO, Kyungsoo, Soil, Water, and Climate, University of Minnesota, 1991 Upper Buford Circle, St. Paul, MN 55108, MUDD, Simon Marius, School of GeoSciences, University of Edinburgh, Drummond Street, Edinburgh, EH8 9XP, United Kingdom, ATTAL, Mikael, School of GeoSciences, Univ Edinburgh, Drummond Street, Edinburgh, EH8 9XP, United Kingdom, MAHER, Kate, Department of Geological Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford, CA 94305, KOUBA, Claire, Dept. of Geological and Environmental Science, Stanford University, Green Earth Sciences 253, 367 Panama St, Stanford, CA 94305 and SINGHVI, Ashok, Planetary and Geosciences Division, Physical Research Lab, Ahmedabad, 380 009, India, bweinman@csufresno.edu, bweinman@csufresno.edu