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The "Crustal Geophysics" research group studies the tectonics and geodynamics of the lithosphere, typically focusing on continental lithosphere that is currently or recently deforming and evolving. We use controlled-source reflection and refraction seismology on land and at sea, and a wide range of passive seismological analyses (shear-wave splitting, receiver function analysis, surface-wave inversion) as necessary to address the chosen problems. Recent and ongoing areas of investigation are the Himalaya-Tibet orogen, extensional and magmatic provinces in the western U.S.A., seismic investigation of marine terraces offshore southern California, the East Africa Rift, and electromagnetic monitoring of the San Andreas Fault.  Read more