Abstract

The case where the velocity increases linearly with depth over a dipping reflector is considered. The underlying medium is assumed to have a constant velocity. On the time-distance graph related to this model there is an end point which corresponds both to the direct seismic ray tangent to the reflector and to the maximum reflection distance in the first medium. Starting from this point, a method of finding the dip and depth is developed and a synthetic example is given.

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