4.5 Application of Geophysics in the Bosumtwi Impact Crater
Geophysical methods play a significant role in exploring and studying impact craters. A compelling number of impact craters are usually buried underneath post-impact sediments and cannot be easily exposed without applying geophysical methods (Pilkington and Grieve, 1992 ).Table 4 shows the geophysical methods applied to investigating the Bosumtwi Impact Crater from our review. The magnetic method has been utilised more than any other method. Nine (9) studies involve some form of the magnetic method. This method is followed by the seismic method, with seven (7) studies utilising this method. Petrophysical and gravity methods follow at five (5) each. Remote sensing methods were applied in two (2) studies, whereas resistivity and radiometric methods were only used in two (2) studies each. All the major geophysical methods applied in geophysical studies have been observed in the studies on the Bosumtwi Impact Crater.