Deposits of the so-called gold-silver formation have been known and developed since ancient times in Bohemia, Transylvania, and Hungary. They are numerous in the west of North and Central America, in Japan, New Zealand, Philippines, Fiji, New Guinea, Sumatra. In our country gold-silver deposits are widespread in the North-East and Far East, in Kazakhstan, Central Asia, they are known in Transcaucasia and Eastern Transbaikalia ...

The deposit under consideration is one of the typical deposits of the gold-silver formation. Numerous ore bodies occur mainly among hydrothermally altered acidic and medium-sized rocks of effusive and subvolcanic facies. Explosive formations are widely developed - so-called tuffisites and tuffisite breccias, with which ore bodies are spatially closely associated ...

Gold deposits, confined to mineralized zones of crushing and buckling of sandstone-shale strata, have specific features of structure. They differ from the widespread quartz-gold deposits of vein type not only by morphology of ore-bearing bodies, but also by the structure of ore fields confined to large discontinuous structures of deep embedment, long and complex history of mineralization development, significant scale of hydrothermally altered and mineralized rocks, predominant role of microscopic and sometimes dispersed gold in ores. If, speaking simplistically, for vein quartz-gold deposits, the problem of prospecting and subsequent exploration is reduced to finding veins and identifying areas (blocks) with balance ores in them according to the already repeatedly tested exploration network, the theoretical aspects of the methodology of exploration of gold deposits of the type of mineralized crushing zones and their practical solution still need to be developed. ...