REVEALING INDICATIONS OF GOLDEN MINERALIZATION ON THE BASE OF ISOLATION OF THE BACKGROUNDAND LOCAL COMPONENTS OF ELECTRIC FIELDS AT THE EASTERN PART OF THE FOREMOST RIDGE (NORTH CAUCASUS)

Abstract

The method of dividing generalized fields of apparent electric resistance (ρк) and apparent polarizing capability (ηк) into the background (regional) and local components, what allowed to isolate anomalies of corresponding orders. The area of increased values of ρк at the map of regional background corresponds to the mass of Late-Paleozoic quartz diorites of the Paleozoic intrusive complex. The area of decreased values of ρк near the eastern border of studied territory may be related to increased temperature of bowels. Negative local anomalies of ρк are coincided with parts of faults and places of their intersections. Positive anomalies of ρк coincide partly with outcrops of gold-bearing skarns of the Zygyrkol zone and with geochemical anomalies of gold in secondary dispersion halos. The area of raised values of ηк at the map of regional background is caused by hydrothermal-metasomatic activity of the Tyrny-Auz ore-magmatic system, which ensured appearance of the halo of dispersed sulphidization, golden and rare-metal mineralization. Most of local ηк anomalies are connected with flooded fault zones. Separate positive ηк anomalies coincident with positive ρк anomalies may point to the parts of hydrothermal-metasomatic rocks with dispersed impregnation of ore minerals. Taking into account, that gold-bearing skarns of the Zygyrkol zone are accompanied by anomalies of such type, they may turn up as first-order objects for arrangement of search works.