Refraction seismology is a geophysical technique used for what purpose?

Refraction seismology is a geophysical technique used for what purpose?

• A. Geology
• B. Hydrology
• C. Geophysics
• D. Meteorology

Answer: (C)

Refraction seismology is a geophysical method that uses seismic waves to probe what lies beneath the surface by how those waves bend at boundaries between rock layers with different velocities. By generating waves at the surface and recording when they arrive at an array of sensors, we infer how fast the waves travel in each layer and the depths of the interfaces. This travel-time information lets us build a model of the subsurface structure—layer thicknesses, velocity contrasts, and the geometry of the rocks below. It’s categorized as geophysics because it relies on measuring physical properties of Earth’s interior (seismic velocities) rather than on general geology, hydrology, or meteorology, which describe broader Earth processes rather than a specific subsurface imaging technique.

Refraction seismology is a geophysical method that uses seismic waves to probe what lies beneath the surface by how those waves bend at boundaries between rock layers with different velocities. By generating waves at the surface and recording when they arrive at an array of sensors, we infer how fast the waves travel in each layer and the depths of the interfaces. This travel-time information lets us build a model of the subsurface structure—layer thicknesses, velocity contrasts, and the geometry of the rocks below. It’s categorized as geophysics because it relies on measuring physical properties of Earth’s interior (seismic velocities) rather than on general geology, hydrology, or meteorology, which describe broader Earth processes rather than a specific subsurface imaging technique.