MINERAL PARAGENESIS AND EXPANSION OF RESOURCES OF THE SKARN-RARE METAL DEPOSITS KOYTASH AND LYANGAR

Аннотация

The article solves the applied scientific problem of identifying forms of finding mineral carriers and mineral associations of platinum mineralization in the skarn-gold-rare metal deposits of Koytash and Lyangar. One of the applied research tasks was to identify the forms of location of mineral carriers and mineral associations of platinum-metal mineralization for these deposits. We carried out field work in the geological study of the Koytash and Lyangar deposits, including sampling from sulphide-rare metal and silver-polymetallic ores, and their laboratory studies by using mass spectrometry, atomic absorption, electron-microprobe and other modern methods. The article deals with complex formation of sulphide-rare-metal and silver-polymetallic ores of the above-mentioned deposits. The formation of mineral associations bearing rare-metal (W-Mo) mineralization forming at the early alkaline stage, almost in all sites we studied, is completed by sulphide-rare metal and silver-polymetallic mineralization carrying often industrial concentrations of noble and other metals. We have identified a form of placement recommended for the concomitant extraction of useful components, the mineral composition and the impurity elements in them. These data show the prospects of sulfide-rare metals and sulfide-polymetallic ores in the Koytash deposit for precious metals, bismuth and others.