L18_SeismicRefractionI-page5

# L18_SeismicRefractionI-page5 - V h V V V V h V x T + + =...

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5 Applied Geophysics – Refraction I Multiple-layered models For multiple layered models we can apply the same process to determine layer thickness and velocity sequentially from the top layer to the bottom 1 2 2 1 2 2 1 2 2 V V V V h V x T + = n n j j n j n j V x V V V V h T + = = 1 1 2 2 2 Head wave from top of layer 2: Head wave from top of layer 3: Head wave from top of layer n: 2 3 2 2 2 3 2 1 3 2 1 2 3 1 3 2 2 V V V
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Unformatted text preview: V h V V V V h V x T + + = Applied Geophysics Refraction I Horizontal vs. vertical velocity contrasts A three-horizontal layer model can produce the same traveltime curve as a single horizontal layer over a vertical velocity contact 1/V 1 1/V 2 1/V 3 1/V 1 1/V 2a 1/V 2b Head wave continues into 2b...
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## This note was uploaded on 01/07/2012 for the course PHYSICS 384 taught by Professor Wei during the Spring '09 term at SUNY Stony Brook.

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