Hydration State of the Upper Mantle in the Arc-Extended Backarc of Southern Cascadia and the Great Basin, western U.S., from Magnetotellurics

Philip E Wannamaker1, Virginia Maris1, Kevin Mendoza2, William Doerner3, John R Booker4 and Derrick P Hasterok5, (1)University of Utah, Energy & Geoscience Institute, Salt Lake City, UT, United States, (2)University of Utah, Geology & Geophysics, Salt Lake City, UT, United States, (3)Source One Geophysical, Inc., 10511 Golden Pine Road, Salt Lake City, CA, United States, (4)University of Washington, Dept of Earth and Space Sciences, Seattle, WA, United States, (5)University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia