Secondary minerals of Fe, Pb, Cu in sulfide-containing tailings: sequence of formation, electrochemical reactions and physico-chemical model (Talmovskie Sands, Salaire, Russia)

The results of studies the composition and form secondary minerals Fe, Pb, Cu, formed under contrasting physico-chemical conditions accumulated tailings from enrichment barite-polymetallic ores Salair ore field, are presented. complex mineral (pyrite, chalcopyrite, sphalerite, galena, fahlore) long-term processes chemical weathering substance contributed to formation monomineral zonal rims fillings intergranular space, which were identified using modern research methods. Plumbojarosite, anglesite, cerussite, iron hydroxides predominate among them; pyromorphite, ginsdalite, covellite occur less frequently. method thermodynamic modeling was used solve inverse problem - restoration solutions that led a change in associations minerals. nature ongoing can be characterized not only by interactions, but also electrochemical reactions systems consideration, where various components act as galvanic pairs, which, combination with parameters medium (pH, Eh, ionic ), leads stepwise or incomplete oxidation original subsequent selective deposition compounds.