A qualitative geologic interpretation of the regional structural framework for a lightly-explored area can be developed very economically through use of public domain data. This concept is especially valid for any offshore area because they are all covered by readily available world-wide satellite-derived gravity data bases. By comparing and integrating satellite-derived gravity with other public source or published geology or geophysics, it is possible to detect regional structural patterns and to extend or extrapolate them into adjacent areas. Examples of useful public data include published bathymetry, refraction seismic, marine- or airborne magnetic data, DEM (digital elevation) data, surface geology maps and published geologic cross sections. A regional study of Gabon using these concepts provides an example of what can be accomplished.
After completing this unit, you will: