Seismic refraction

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Seismic refraction is a geophysical principle (see refraction). In the fields of engineering geophysics, engineering geology and exploration geophysics, seismic refraction traverses (seismic lines) are performed using a seismograph, geophone array and energy source. The seismic refraction method utilizes the refraction of seismic waves on geologic layers and rock/soil units in order to characterize the subsurface geologic conditions and geologic structure.

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