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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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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.
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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