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Tectonic Inheritance During Plate Boundary Evolution in Southern California Constrained From Seismic Anisotropy
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2021
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Source: Geochemistry, Geophysics, Geosystems, 22(11)
[PDF-12.00 MB]
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Journal Title:Geochemistry, Geophysics, Geosystems
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Description:The style of convective force transmission to plates and strain-localization within and underneath plate boundaries remain debated. To address some of the related issues, we analyze a range of deformation indicators in southern California from the surface to the asthenosphere. Present-day surface strain rates can be inferred from geodesy. At seismogenic crustal depths, stress can be inferred from focal mechanisms and splitting of shear waves from local earthquakes via crack-dependent seismic velocities. At greater depths, constraints on rock fabrics are obtained from receiver function anisotropy, Pn and P tomography, surface wave tomography, and splitting of SKS and other teleseismic core phases.
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Source:Geochemistry, Geophysics, Geosystems, 22(11)
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ISSN:1525-2027;1525-2027;
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Rights Information:CC BY
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Compliance:Library
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