dip shooting
dip shooting A field procedure in seismic-reflection studies where, commonly, split-spread and/or cross-spread shooting is used to determine the structural dip of a reflector. The asymmetry of the normal move-out (NMO) associated with a split-spread shot is diagnostic of a dipping reflector, with the up-dip side having the smaller NMO corrections. The true structural dip can be determined from the dip information provided by a cross-spread shot.
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dip shooting