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base of weathering

1. n. [Geophysics]

The lower boundary of the near-surface, low-velocity zone in which rocks are physically, chemically, or biologically broken down, in some cases coincident with a water table. Static corrections to seismic data can compensate for the low velocity of the weathered layer in comparison with the higher-velocity strata below.

See: first breakghoststatic correctionvelocityweathering

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