Regional and Residual Gravity Anomalies: The Existing Issues

Abstract

The Bouguer gravity anomalies obtained after various corrections to the observed field represent the combined responses of various masses lying at depths below the ground surface. At this stage the interpreter separates the effects which are likely to be associated with the geological features of interest or the target body from the rest of the response. In case of problems dealing with mineral and hydrocarbon exploration or the delineation of structures for engineering and foundation purposes, the interpreter is concerned with depths ranging from a few tens of metres to a few kilometres. There are also problems dealing with deep-seated structures at crustal or even Moho depths. Therefore, the zones of interest are different depending on the problems at hand.