Active excitation of electrochemical reactions on the surface of ore bodies possessing electronic conductivity, and registration of the processes in the form of polarization curves allow to establish the composition of sulfide minerals in the mineralization, its position in space, as well as the content and reserves of useful components.

Non-contact polarization curve (NCPC) studies are characterized by the excitation of cathodic electrochemical reactions on the surface of ore bodies in the zone of current entry into the mineralization and anodic reactions in the zone of exit.