THE FIRST DATA ON GOLD MINERALISATION IN AMETHYSTS OF SELBUR DEPOSITS (SOUTH TIEN-SHAN)
For the first time the elevated concentrations of gold have been identified in amethysts from quartz-carbonate veins of Selbur deposit by means of stripping voltammetry. Selbur deposit is located on the southern slope of the Hissar Ridge (South Tien Shan). The veins are localized in sedimentary and volcanic rocks of metasomatic alteration of the lower and middle Paleozoic and granitoids age of bituminous coal. The veins are confined to tectonic zones of northeast strike. Impurity elements: Fe, Co, Ni, Cr, Ti, Cu, Zn, Pb present constantly in quartz and amethysts, and also Au, Ag, Tl, U are in amethysts.