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Unformatted text preview: Elastic moduli: Poissons ratio ) ( 2 2 2 2 2 2 S P S P V V V V = Tells us about the elastic strength of the material Important for building foundations etc Determined from knowledge of V P and V S need shear sources and horizontal geophones for V S 2. Degree of jointing Jointing lowers seismic velocity Degree of jointing can be estimated from velocity for a known rock type...
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- Spring '09