Gravity exploration

(gravimetrical exploration) – is a geophysical method based on a natural gravity field study over the Earth surface. The information about the elements of this field makes it possible to determine their densities, ascertain the deep structure of exploration areas according to the distribution of geological bodies in the Earth crust. It is one of the exploration geophysics’ methods.
The physical basis of the method is the law of universal gravitation by Isaac Newton, in accordance with which rocks having different densities make different changes to the gravity field. Rocks have specific and persistent density features, specific combinations of which make specific gravity fields. A gravity field is specified by the gravity force – the strength modulus of the gravity field and second derivation potentials of the gravity force.