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Published byElisabeth Gray Modified over 9 years ago
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Shear velocity of olivine Data from Kumazawa & Anderson [1969] Seismic Anisotropy
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Anisotropy of Polycrystaline Rocks Twin Sisters Dunite Babuska, 1972
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Velocity Anisotropy - Twin Sisters Dunite Babuska, 1972 B - axesC - axes A - axesP velocities
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Lattice Preferred Orientation - Relationship of anisotropy and strain Mainprice & Silver [1993]
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Different Slip Systems Jung et al., 2006
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Radial Anisotropy (Transverse Isotropy) Hexagonal symmetry with a vertical axis Vertical and horizontal propagating waves have different velocities Same velocity for all horizontal directions Studied using difference between Love (SH) and Rayleigh (SV) waves Ekstrom & Dziewonski, 1998
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Azimuthal Anisotropy: Pn anisotropy in oceanic lithosphere
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Shear Wave Splitting
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Smith et al., [2001] Seismic and Geochemical Evidence for Mantle Flow - Lau Helium isotope anomalies Shear wave splitting Mantle flow diagram After Turner and Hawkesworth, 1998
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Mariana Arc Shear Wave Splitting Rose Diagrams - plotted at station for sources in upper 250 km Spatial Averaging - for paths in the upper 250 km Pozgay et al. [2007]
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