Gold-rare metal and associated mineralization in the western part of Bolshevik Island, Severnaya Zemlya archipelago

The presented studies are aimed to determine the formation patterns of gold-rare metal mineralization within one most inaccessible Arctic islands Russian Federation, Bolshevik Island Severnaya Zemlya archipela-go. relevance work is determined by high probability discovering a significant in terms reserves deposit, which proved many researchers on example known large deposits be typical feature sites with formation. Obviously, only possibility and subsequent development deposit highly liquid type mineral, gold, can ensure profitability mining production Zemlya. It established that main geological, mineralogical, geochemical features Kropotkinsko-Nikitinskaya metallogenic zone correspond similar ore Russia world. occurrences other types revealed this suggest certain zoning their distribution: located apical parts granitoids nearest halo hornfelses. At distance, an exit from hornfelsed zone, there cassiterite-sulphide elevated gold silver content at top column, together increased amount polymetallic ores. Occurrences gold-quartz gold-sulphide-quartz formations localized fault zones, as rule, farther granitoids. total vertical range exceeds 300 m. assignment all single hydrothermal process emphasized isotope composition lead galena heterogeneous occurrences, determines age 200-300 Ma.