Geophysical data processing systems

A computer-implemented method of processing geophysical data including at least measured potential field data from a potential field survey of a surveyed region of the earth to provide a representation of the underlying geology of the surveyed region as a set of lines, the method being implemented by a computer comprising a memory in communication with a processor, the comprising:

• inputting, to said processor, potential field data for said surveyed region;
• processing, by said processor, said potential field data to identify spatial features comprising one or both of line spatial features and point spatial features, said spatial features corresponding to locations of changes in said underlying geology;
• determining, by said processor, a degree of correlation between said identified spatial features;
• and
• generating, by said processor, 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.

A geological data processing system for processing geophysical data including at least measured potential field data from a potential field survey of a surveyed region of the earth to provide a representation of the underlying geology of said surveyed region, the system comprising:

• an input system for receiving said measured potential field data;
• and
• a processor coupled to said input system, said processor configured to:
• filter said potential field data by spatial wavelength to generate a first plurality of filtered sets of potential field data wherein each filtered set relates to a respective wavelength or range of wavelengths and wherein each filtered set targets geological features at a different respective said depth;
• process each said filtered set of potential field data;
• identify a set of spatial features comprising one or both of line spatial features and point spatial features in each said filtered set of potential field data;
• generate a set of plot for each said filtered set of potential field data, a said set of plot data representing said identified set of spatial features for a said depth targeted by said filtering;
• and
• combine said sets of plot data to generate three-dimensional map data providing a three-dimensional representation said underlying geological features of said surveyed region.