Features of noble metals at Pioneer gold deposit

The purpose of the present study is to evaluate mass fractions group noble metals (gold, silver, platinum, ruthenium, osmium, palladium, iridium, rhodium) in ores and host rocks Pioneer deposit (the Upper Amur Region, Russia) determine their migration activity hydrochemical classification ore by sizes. object primary oxidized ores, as well hosting this mineralization. employs method quantitative chemical analysis, micro assay melting with an error correctness, accuracy reproducibility results ≤30 %. a near surface hydrothermal sulfide types which are processed both open alkaline heap cyanide leaching, closed pressure method, respectively. A gold concentration plant was built implement these processing methods. main recoverable component technology gold, whereas silver platinum industrial products impurities. highly profitable, allows cost-effective 1–4 ppm gold. performed sizes native minerals has showed that bulk nuggets (74– 78 %) primary, sulfide, accounts for fraction 160–1000 μm 11–13 % account 16–40 μm. Fine provides its complete dissolution during cyanidation process.