| Popis: |
The first step in the analysis of gravity anomalies for mineral exploration is the extraction of residual gravity anomalies from the observed gravity anomalies. This can be achieved by graphical or analytical methods. Generally, direct and indirect analytical methods are considered better than graphical methods. Telford et al (1990) and Reynolds (1998) have shown that the two analytical methods are suitable for the determination of residual gravity anomalies. However, their studies did not include the comparison of the methods to determine which one of the two analytical methods is more suitable. In this study, direct and indirect analytical methods are utilized to compute residual gravity anomalies using rectangular coordinate system. The results confirm that both methods are suitable for the computation of residual gravity anomalies with indirect analytical method proving to be the better option for the computation of residual gravity anomalies. |
