Home – Home – Jornals – Fundamental and applied issues of mining 2020 number 1

The issues of metallogenetic modeling of ore-forming systems for search purposes when studying flanks and deep horizons of the mined deposits are considered. The object of the study is the analysis of geological and geochemical conditions of ore accumulation of various mineral composition and the concentration of useful components in various sections of the Talnakh ore-forming system. Mineral and geochemical zoning of the deposits reflect the degree of contamination of primary silicate and magmatic melts with crustal material. On the western and southern flanks of the ore-forming system, ore mineralization is represented by low-sulfur associations of chalcopyrite minerals and is specialized in Cu - Ni - Co. A study of the geochemistry of isotopes δ³⁴S, ⁴⁰Ar/³⁶Ar, δ⁶⁵Cu, ⁸⁷Sr/⁸⁶Sr suggests that the process of ore formation on the flanks of the Talnakh ore-forming system occurs under intense influence of the crustal component (sulfur source evaporite rocks) and near-surface water on the fluid component fractionated by sulphide fusion enriched with copper, resulting in the formation of ores with chalcopyrite type of mineralization.