reviou probi – 3 nd 2500 kg m-3 re basement with ve m=3. xg the reflection an
reviou probi – 3 nd 2500 kg m-3 re basement with ve m=3. xg the reflection an
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Transcribed Image Text:15. Assume that the three horizontal homogeneous rock
layers in the previous problems have densities of
1800, 2200, and 2500 kg m-3 respectively. The lowest
layer overlies basement with velocity 5.8 km s-l and
density 2700 kg m-3.
(a) Compute the reflection and transmission coeffi-
cients at each interface for a plane P-wave travel-
ling vertically downwards.
(b) Calculate what fraction of the initial energy of
the wave is transmitted into the basement.
(c) Calculate the fraction of the initial energy carried
in the reflection that returns to the surface from
the basement.
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