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ARM Geophysics uses seismic refraction methods to determine bedrock depth and rippability
as well as to delineate fractures.
The earth is made up of various materials that
have specific physical properties. One of the properties is the rate at which compressional
energy travels through the ground. This energy is generated by a sledge hammer hitting
against a metal plate on the ground, massive weights thrown against the ground,
or even by explosives. As the energy travels through the subsurface, it will reflect
and refract at the interface between different subsurface layers.
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Seismic refraction survey in Dalton, Georgia. |