Different rocks have different densities, when the thickness of this rock layer changes greatly or the undulations of the interface are larger, the corresponding gravity anomalies will be caused on the ground, according to the density of the known rocks, the interpretation of gravity anomalies can be carried out, so as to carry out the study of the substrate undulation and regional geological structure, but only in conjunction with other geophysical exploration methods can we find various mineral deposits
.
Gravity exploration has the following uses in hydrological and engineering geological exploration: 1- to find various structures (such as faults, caves, etc.
) suitable for storing groundwater; 2- Monitoring the rise and fall of the groundwater table; 3- Look for ancient river channels and underground river channels
.
