seismic migration  search
NTpoststack migration
 prestack migration
UFmigration (seismic)
RTseismology
 seismic methods
 arrival time
 dip moveout
 raypaths
 imagery
 migration
 diffraction
 inverse problem
 Kirchhoff integral
 finite difference analysis
 wave fields
SNInversion operation for rearranging seismic information to plot reflections and diffractions at their true locations. Before 1993, also search migration AND seismic methods. Added to Thesaurus in 1993.