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.