UCLA Department of Earth and Space Sciences, 595 Charles Young Drive East 3806 Geology Building, Los Angeles, CA 90095, USA
Planetary Geodynamics Laboratory Goddard Space Flight Center/ Institute for Geophysics and Planetary Physics Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093, USA
UCLA Department of Earth and Space Sciences, 595 Charles Young Drive East 3806 Geology Building, Los Angeles, CA 90095, USA