The seismic methods of geophysical exploration utilize the fact that elastic waves travel with different velocities in different rocks. The principle is to initiate such waves at a point and determine at a number of other points the time of arrival of the energy that is refracted or reflected by the discontinuities between different rock formations. This then enables the position of the discontinuities to be deduced.
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- Seismic methods
D. S. Parasnis
- Springer Netherlands