GEOCHEMICAL CHARACTERISTICS AND BOUNDARIES OF GOLD ORE FIELDS OF THE REGION INCLUDING GORNYACHKA AND PESCHERNOE DEPOSITS, NORTHERN URALS
DOI:10.24411/0869-5997-2020-10003
Keywords:
gold-quartz deposits, characteristics and boundaries of gold ore fields, geochemical halos, blocks of increased density, East Tagil structural-formation zone.Abstract
The signs of ore mineralization related to the gold-low-sulfide-quartz formation in the primary oxidized rocks of the central segment of the East Tagil structural-formation zone (SFZ) are the multiplicative halos Ag+Sb+As. These elements are part of secondary ore minerals (arsenates, antimony ocher, native silver), which replaced ore minerals of primary ores (arsenopyrite, faded ores), which were in close intergrowth with gold. The ore fields of the Gornyachka and Peshchernoye deposits are shown as plots of clusters of multiplicative aureoles Ag+Sb+As with an area of the first square kilometers. Gold ore fields are limited by blocks of increased density, characterized by the magnesium content in the volcanic-sedimentary strata at a level of ≥ 1% and positive gravity anomalies.