FIRST ESTIMATE OF THE AGE OF GOLD ORES OF THE DARASUN DEPOSIT (EASTERN TRANSBAIKAL REGION) BY THE SM-ND METHOD

Abstract

The Darasun deposit incorporates more than 200 sulfide–quartz ore veins formed in three stages: (1) the quartz–sulfide stage (quartz–tourmaline, quartz–pyrite, and pyrite–arsenopyrite assemblages with gold and ankerite); (2) the sulfide–sulfosalt stage (sphalerite-galena and chalcopyrite–fahlore assemblages with bismuth tellurides and gold); and (3) the sulfoantimonite stage (sulfoantimonite and quartz–carbonate assemblages).