 Solution

ID: past-exam-of-the-year-2-of-the-earth-sciences-geology-course-of-the-university-of-oxford/2023/paper-1/6/e/solution

The transmitted P wave travels in the sandstone. Conservation of the seismic ray parameter gives

sin t_{P} = \frac{2000}{2500} sin 2 0^{\circ}, t_{P} = 15.8 8^{\circ} .

It bends toward the vertical because its seismic velocity is smaller.

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