Cross-hole induced polarization tomography is а promoting area of electrical survey. The high resolution of this method allows detailed study of the distribution of electrical resistivity and chargeability in a hole-hole plane. In the paper we describe a used field technique, principles of data acquisition and inversion. We present results of the cross-hole induced polarization tomography obtained on a site with sulphide mineralization (Kola Peninsula).

Developing in recent decades in the USSR audiomagnetotelluric (AMT) method, which appeared earlier abroad, currently finds application, in particular in geological mapping of ore districts in the medium and large scale.

Widely spread in the tasks of exploration geophysics, in particular - electrical exploration, the method of electrostatic images, as it is known, is applicable to the problems where the inhomogeneities of the medium are limited by planes or cylinders (or straight lines and circles in the two-dimensional case).

The work is devoted to the construction of mathematical models of secondary superimposed geochemical halos.