NATIVE GOLD FROM PLACER OCCURENCES OF THE EVOTA ORE-PLACER BEARING REGION AND P.PINIGIN DEPOSIT (ALDAN-STANOVOY SHIELD)

The mineralogical and geochemical features of native gold from the P. Pinigin deposit, as well as placer occurrences of the Evotinsky ore-placer bearing region (EOR), are considered. Native gold at the P. Pinigin deposit is represented mainly by cementation and interstitial forms, with small amounts of fissure and hemmidiomorphic particles. Maldonite, lellingite, iron and bismuth oxides are identified as inclusion minerals. Some gold particles have a porous-cellular structure and are similar to those considered in the deposits of the gold-rare metal formation of the Yana-Kolyma ore-gold bearing belt. Similar porous gold in association with bismuth oxides was found in placer occurrences of EOR. Admixture element content data confirm assumption that very high fineness gold in placer occurrences of EOR have a genetic connection with primary sources similar to the P. Pinigin deposit.