ADDISON, Jason, US Geological Survey, GMEG Science Center, 345 Middlefield Road, MS 910, Menlo Park, CA 94025, FINNEY, Bruce P., Departments of Biological and Geological Sciences, Idaho State University, Pocatello, ID 83209, BARRON, John, U.S. Geological Survey, 345 Middlefield Road, MS 910, Menlo Park, CA 94025, ANDERSON, Lesleigh, U.S. Geological Survey, Geoscience and Environmental Change Science Center, Box 25046 MS 980, Denver Federal Center, Denver, CO 80225 and MIX, Alan, College of Earth Ocean and Atmospheric Sciences, Oregon State University, 2651 SW Orchard Ave, Corvallis, OR 97331