1. A method for analyzing seismic data, comprising the acts of: accessing a volumetric seismic data set for analysis; modeling a plurality of regions using basis volumes derived from parallel regions within the volumetric seismic data set; identifying one or more residual regions within the volumetric data set, wherein the one or more residual regions comprise those regions not suitably modeled with the basis volumes based on a threshold criterion; and displaying the one or more residual regions or a graphic derived from the one or more residual regions for review.