Which observations would tell you the most about the geometry of rock layers deep in the subsurface?

Question

Quizplus · Accepted Answer

Seismic reflection surveys use sound waves to image layers beneath the Earth's surface and provide the most direct information about the geometry of rock layers in the subsurface. The other methods listed can provide information about subsurface geology but are not as directly related to rock layer geometry.

Which Observations Would Tell You the Most About the Geometry