Geological Structur Mapping Using Derivative of Gravity Anomaly

Abstract

Existences of the structure\'s plane hardly determined qualitatively with contrast of Bougeur anomaly (CBA). The problem is to determine representatively range of the anomaly values which can present the contact area using variation of anomalies. Derivation of gravity anomaly in spatial dimension can be used to map the distribution of contact area without knowing difference of body’s density quantitatively. First Horizontal Derivative (FHD) will indicate the presence of the contact area at the maximum or minimum value. First Vertical Derivative (FVD) and Second Vertical Derivative (SVD) will indicate the presence of the contact area at the transition zone of the maximum and minimum values, around zeros. The combination of structures zone from two types of gravity anomaly derivatives expected to map the existence of the geological structure.