DORSEY, Rebecca J., Department of Earth Sciences, University of Oregon, Eugene, OR 97403, DARIN, Michael, Nevada Bureau of Mines & Geology, University of Nevada, Reno, 1664 N. Virginia St, MS 0178, Reno, NV 89557-0178, ARMENTROUT, John, Earth Sciences -- Research Associate (not faculty), University of Oregon, 20060 SE Highway 224, Damascus, OR 97089, SANTRA, Manasij, Univ of Texas, Austin, Institute for Geophysics, 4327 Lasker Brook ct, Katy, TX 77494, BLACKWELL, David L.S., Department of Earth Sciences, University of Oregon, Eugene, OR 97403-1272 and BINDEMAN, Ilya, Earth Sciences, University of Oregon, Eugene, OR 97403