Generating a plot which represents locations of changes in the underlying geology of a region based on gravity gradient survey data

摘要

A method and system for processing geophysical data including at least measured gravity gradient data from surveyed region of the earth comprises inputting the gravity gradient data comprising a plurality of tensor components for said surveyed region; processing said data to identify a plurality of sets of line spatial features, said spatial features corresponding to locations of changes in said underlying geology and with each set of spatial features corresponding to a different tensor component of the gravity gradient data; determining a degree of correlation between each of said sets of spatial features, and generating plot data providing a representation of said degree of correlation on a set of lines representing said line spatial features to identify said locations of said changes to thereby represent said underlying geology of said surveyed region. The method may additionally comprise inputting other potential field data.