Geochemical features of the Rodionov gold-quartz ore deposit (Northeast Russia)
The enrichment of the Rodionov gold-quartz deposit in chalcophile trace elements (Au, Ag, As, Sb) has been established. Minor negative Eu anomalies and low ΣREE concentrations, typical of metamorphic fluids, have been revealed. Slight Bi-enriched ores indicate a possible participation of a magmatic fluid in ore formation that could superpose early metamorphogenic quartz veins and veinlets. Multi-vector tendency of REE spectra also testifies to the existence of a magmatic source of fluids related with the post-ore granitoid intrusion. The results obtained confirm the metamorpho-magmatogenic model of the formation of the Yana-Kolyma fold belt gold-quartz deposits. The data presented are of practical importance for regional forecast-metallogenic constructions, exploration and evaluation of gold deposits.