The velocity of propagation of elastic waves in a particular rock.
- Many factors, such as porosity, pressure, and temperature, affect the seismic velocity of a particular rock.
- The refraction data will allow us to measure the seismic velocity within the deep structure to determine the boundary between the higher-velocity rock of the crust, from lower-velocity sediments.
- By factoring in when and where specific earthquakes occurred, the data can be used to create a map of seismic velocity, akin to a medical tomogram.
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