HEITMANN, Emma, Department of Earth and Space Sciences, University of Washington, 4000 15th Avenue NE, Seattle, WA 98195, HYLAND, Ethan G., Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, SCHOETTLE-GREENE, Philip, Department of Earth and Space Sciences, University of Washington, Johnson Hall, Seattle, WA 98195-1310, BRIGHAM, Cassandra A., Department of Earth and Space Sciences, University of Washington, 4000 15th Avenue NE, Seattle, WA 98103 and HUNTINGTON, Katharine W., Earth and Space Sciences, University of Washington, Seattle, WA 98195