THE PROBLEM OF CREATING THREE-DIMENSIONAL DENSITY MODELS OF GEOLOGICAL OBJECTS BASED ON SOLVING A TWO-DIMENSIONAL GRAVIMETRY PROBLEM

Gravitational field inversion technologies aimed at creating three-dimensional detailed models of the real geological environment are constantly being improved, but the basic principles of solving inverse problems remain unchanged, violation of which does not allow obtaining a geologically meaningful result. The method of forming three-dimensional density models of the environment, presented in the article by M.D. Sidorov and Yu.P. Trukhin, as well as in other works of the authors, raises a number of questions, of which the main and fundamental is the correctness of the application of 2D density modeling in the study of a three-dimensional geological object. The legality of the transition from two-dimensional to three-dimensional models needs to be confirmed by simulation modeling. The absence of such constructions leads to the production of typical «compensation» sections that are inadequate for the real density distribution. Another aspect is the degree of detail of the resulting 3D model of the environment, compiled from the results of 2D modeling, which, of course, depends on the detail of the initial gravitational field. The quality and reliability of the results obtained should be confirmed by solving the direct 3D gravimetry problem from the created model of the medium.