Peculiarities of mineralogical composition of sandstones of the bolsheinzer suite of lower riphean (Southern Ural) in connection with ore formation

Abstract

The article considers the results of the study of the mineralogical peculiarities of the sandstones of the Bolsheinzer suite of the Lower Riphean in the Yamantau anticlinorium in the Southern Urals. Rutile, titanite, ilmenite, pyrite, fluorite, zircon, apatite, epidote, actinolite, tourmaline and gold are found in sandstones in the central part of the Yamantau anticlinorium. Gold is chemically similar to gold from the Uluk-Bar deposit located south to the site studied. The prospects of the studied area for gold content are confirmed by the discovery of gold and the established Au content of up to 0.5 g / t in the sandstones of the suite far to the north of the primary deposits and gold occurrences. The fluorite and tourmaline appearance in the sandstones of the Bolsheinzer suite shows the mineralogical peculiarities probably associated with the gold ore process.