1. A processor-implemented method for analyzing seismic data, comprising the acts of: accessing a volumetric seismic data set for analysis by a processor of a processor-based system programmed to analyze seismic data; using the processor, applying a Fourier transform to a plurality of regions of the volumetric seismic data set, wherein the Fourier transform represents data in terms of its modulation frequencies and wherein those modulation frequencies meeting one or more threshold criteria correspond to simple parallel textures within the volumetric seismic data set; using the processor, identifying one or more residual regions within the volumetric seismic data set based on those modulation frequencies not meeting one or more threshold criteria; and displaying the one or more residual regions or a graphic derived from the one or more residual regions for review, wherein the one or more residual regions or the graphic highlight anomalies that are distinguishable from parallel textures in the volumetric seismic data and correspond to geobodies associated with hydrocarbon extraction.