seismic reflection or refraction line

What is seismic reflection or refraction line?

seismic reflection or refraction line meaning A seismic refraction or seismic reflection line is a set of seismographs usually lined up along the earth’s surface to record seismic waves generated by an explosion for the purpose of recording reflections and refractions of these waves from velocity discontinuities within the earth. The data collected can be used to infer the internal structure of the earth.

 

reference: USGS – Earthquake Glossary

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