Affiliation: | 1.US Geological Survey, 333 West Nye Lane, Carson City, NV 89706, USA ,;2.Lawrence Livermore National Laboratory, University of California, Livermore, CA 94551, USA,;3.Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, USA,;4.Department of Geological Sciences, University of California, Santa Barbara, CA 93106, USA, |