GEOLOGY AND GOLD MINERALIZATION OF LOWER CARBONIFEROUS FILLS OF KOMMERCHESKOYE DEPOSIT (KUMAKSKOYE ORE FIELD)
The work considers a promising object - the Kommercheskoye deposit in the black shales of the Kumak ore field. The main ore-bearing structures are two meridional zones of the East Anikhov faults, into which quartz veins penetrate and where fracture metamorphism, metasomatism, and mineralization are intensely manifested. Significant concentrations of gold are confined to intercalation bundles of metamorphosed primary terrigenous and clay rocks, which are now transformed into a diverse composition of micaceous-quartz and quartz-micaceous chlorinated schists. The prevailing importance among them is occupied by the most favorable for mineralization carbonaceous micaceous carbonate-quartz siltstone shales, and shields for ore-bearing solutions are clays and limestones. More gold concentrations are expected at deeper horizons of the Kommercheskoye deposit, less susceptible to weathering.