A Fourth-Order CRS Moveout for Reflection and Diffraction Events

P167 A FOURTH-ORDER CRS MOVEOUT FOR RE- FLECTIONAND DIFFRACTIONEVENTS Chira-Oliva P.   Tygel M.  ¡  and Hubral P.     Geophysical Institute University of Karlsruhe Hertzstr. 16 76187 Karlsruhe Germany  ¡  State University of Campinas 13081-970 Campinas SP Brazil Summary. Traveltime moveout expressions that can well stack reflection and diffraction events are of prime interest for the imaging and inversion of seismic data. In recent years the classical hyperbolic single-parameter NMO/DMO stacking formula applied to common-midpoint (CMP) data is being replaced by new moveout expressions that make use of more parameters and allow for arbitrary measurement configurations. The advantages of