seismic refraction method
Quick Summary
The seismic refraction method is a geophysical technique used in Earth exploration. It works by measuring the time it takes for seismic waves, generated by sources like explosions or vibrators, to travel through different rock layers and reach detectors called geophones or hydrophones.1
This method relies on the principle that seismic waves travel at different speeds through different materials. When a wave encounters a boundary between layers with different properties, it refracts. By analyzing the travel times of these refracted waves, scientists can determine the number, thickness, and seismic velocities of the rock layers beneath the surface. This information is crucial for understanding subsurface geology, locating resources like oil and gas, and conducting engineering studies.1
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