摘要:The article discusses the mineral and geochemical features of the yellow Jacket ore Deposit located in Clark County, Nevada. Тhe Deposit differs significantly in many mineral and geochemical features from the deposits of dispersed gold ores belonging to the so-called Karlin formation type in compacted and locally weakly metamorphosed strata of carbonate rocks, mudstones and carbonated shales (carbonated turbidites). Positive results of analyses, including those with a cupellation (gravimetric) termination, were obtained in laboratories using non-standard approaches to sample preparation. Based on the working hypothesis of finding chemically bound dispersed gold in hematite-goethite films on the surface of quartz-chalcedony particles and internal microcracks, it was proposed to use active metastable chlorine-oxygen compounds to break the chemical bonds between iron atoms and clustered dispersed gold atoms and transfer it to a solution. In the liquid phase of the ore pulp with reagents added to it , after its activation treatment, the gold content, depending on its duration and intensity, varied in the range from 1.2 to 30 mg/l( at W:T=1:1).
关键词:Yellow Jacket Deposit; mineral and geochemical features of
ores; ore testing; dispersed; chemically bound gold; assay and atomic
absorption analysis; chloride-hypochlorite leaching; preparation of ores for
leaching; active leaching solutions; peroxide-carbonate solution; chloridecarbonat solution