1. A computer-implemented method for analyzing attributes to identify geologic features within a geologic volume of interest, the method comprising: obtaining an attribute volume representing an attribute of the geologic volume of interest, the attribute volume having been formed from a plurality of offset stacks and/or angle stacks that represent energy that has propagated through the geologic volume of interest from one or more energy sources to one or more energy receivers, an individual energy source being physically separated from an individual energy receiver by a corresponding source-receiver offset, each individual offset stack being formed from a corresponding set of seismic traces having substantially equivalent source-receiver offsets, each individual angle stack being formed from corresponding sets of seismic traces having substantially equivalent source-receiver angles; flattening the attribute volume according to time, depth, slope, vertical, dip, dip azimuth, horizon, or relative to an interpreted horizon; generating a sequence of slices from the flattened attribute volume; and identifying separate geologic features represented in the slices based on a sequential analysis of the slices.