45. Two seismic refraction surveys have been done at two different sites, where the basic geological models are all believed to be single horizontal layer plus basement. The two time-offset plots have the same slope for direct arrival and refracted arrival, but differ in the intercept time. The intercept time at Site A is 20ms while at Site B is 35ms, so what can be concluded? a. Site A and Site B have exactly the same velocity model b. the surface layer in Site B is thicker than that in Site A c. the surface layer in Site A is thicker than that in Site B d. not enough information to give any conclusion
45. Two seismic refraction surveys have been done at two different sites, where the basic geological models are all believed to be single horizontal layer plus basement. The two time-offset plots have the same slope for direct arrival and refracted arrival, but differ in the intercept time. The intercept time at Site A is 20ms while at Site B is 35ms, so what can be concluded? a. Site A and Site B have exactly the same velocity model b. the surface layer in Site B is thicker than that in Site A c. the surface layer in Site A is thicker than that in Site B d. not enough information to give any conclusion
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45. Two seismic refraction surveys have been done at two different sites, where the
basic geological models are all believed to be single horizontal layer plus
basement. The two time-offset plots have the same slope for direct arrival and
refracted arrival, but differ in the intercept time. The intercept time at Site A is
20ms while at Site B is 35ms, so what can be concluded?
a. Site A and Site B have exactly the same velocity model
b. the surface layer in Site B is thicker than that in Site A
c. the surface layer in Site A is thicker than that in Site B
d. not enough information to give any conclusion
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