process of determining properties of underground rock formations by analyzing reflected sound waves as they bounce off the rocks. Also called reflection seismology.

the Reflection of waves at boundaries between different rock formations

the use of seismic vibration waves to explore the subsurface distribution of rock types or faults. The reflection of waves off, or refraction along, underground layers or structures, reveals the depths and positions of changes in rock density or character. This geophysical investigation method can utilise vibrations of natural earthquakes, or more [..]

a technique for examining the layers of the seafloor that uses the sound energy that is reflected by different layers in the seafloor.

A mode of seismic prospecting in which the seismic profile is examined for waves that have reflected from near-horizontal strata below the surface.

Ground waves (vibrations) caused by an explosion or weight drop are sent from a transmitter. These vibrations travel in all directions. When they reach a geological layer, some of the waves are reflec [..]

The return of part of the energy of seismic waves to the earths surface after the waves bounce off a rock boundary.

A surface geophysical method recording seismic waves reflected from geologic strata, giving an estimate of their depth and thickness.