Model of Formation of the Kumak Gold Deposit (Southern Urals, Russia)

Based on the study of the geological structure of the Kumak gold deposit, the mineral composition of ores and near-ore metasomatites, the following geological factors have been identified that play an important role in the localization of gold mineralization. 1—the presence of the Anikhov zone of deep faults, which plays the main ore-controlling role, and shear zones, which have an ore-localizing value. 2—lithological complex—confinement of gold mineralization to carbonaceous rocks of the Bredy Formation (C1bd). 3—the presence of sulfide mineralization in clay-carbonaceous rocks, which acts as a geochemical buffer medium. 4—development of zones of greenschist dynamothermal metamorphism in sedimentary rocks, in which, due to dehydration and decarbonatization reactions, a huge amount of pore fluids are formed, capable of transporting and concentrating gold and other components in the form of deposits. 5—the presence of quartz diorites of the Kumak complex, with which manifestations of gold in the ore field are genetically associated.