Static corrections—a review, Part 1

In many onshore exploration areas, the land surface is covered with a relatively thin layer of material of low seismic velocity. Commonly known to geophysicists as the weathered layer, it is generally related to aerated material above the water table or to geologically recent unconsolidated sediments on a substratum of harder consolidated rocks. This seismic layer, despite the geophysicist’s terminology, appears to have very little to do with the geologic weathered layer.