Department of Geological and Environmental Sciences Stanford University, 450 Serra Mall Braun Hall, Building 320, Stanford, CA 94306, United States
Muséum National d'Histoire Naturelle, USM 201 and CNRS UMR 7160, Pairs, 7160, France
Stanford Synchrotron Radiation Laboratory, LAC, MS 69, 2575 Sand Hill Road, Menlo Park, CA 94025, United States ; Department of Geological and Environmental Sciences Stanford University, 450 Serra Mall Braun Hall, Building 320, Stanford, CA 94306, United States