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Unformatted text preview: • direction of rock particle vibration parallel to wave propagation • fastest rates of propagation - first arrival to seismographs • body waves travels through solid & liquid • seismic S waves • secondary/shear waves • direction of particles perpendicular to wave propagation • slower than P waves • propagates through Earth's interior, but not liquids/molten layers • Earth's interior boundaries - determined by sudden change in seismic waves • different rates & paths of wave propagation • Asthenosphere - low velocity zone, major source of Earth volcanism • Outer Core - no S wave through it (partially moltenl…) Plate Tectonics...
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This note was uploaded on 11/14/2011 for the course GEOG 1002 taught by Professor Engstrom during the Fall '11 term at GWU.
- Fall '11