1. A computer-implemented method for transforming geologic data relating to a subsurface region between a geophysical depth domain and a geologic age domain, comprising: obtaining seismic data; obtaining a set of topologically consistent surfaces that correspond to the seismic data; enumerating the surfaces in the depth domain; assigning an age to each of the surfaces in the depth domain, the age corresponding to an estimated time of deposition of the respective surface; using a computer to generate an age mapping volume; choosing an extent of the age domain; using a computer to generate a depth mapping volume; using both the age mapping volume and the depth mapping volume to transform, on a computer, geophysical, geologic, or engineering data or interpretations between the depth domain and the age domain, and between the age domain and the depth domain; and outputting the geophysical, geologic, or engineering data or interpretations transformed by at least one of the age mapping volume and the depth mapping volume.