constant-velocity stack

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constant-velocity stack (CVS) A method similar in principle to a constant-velocity gather (CVG), in which the normal moveout is applied as in a CVG and up to ten gathers are stacked (see STACKING) and displayed as CVS velocity panels. The correct velocity is that which produces the strongest event for a given reflector. CVS tends not to produce such precise values for velocity as the CVG method.

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