TY JOUR TI Mineralogical and geochemical features of the ores of the Verkhnelekeletskoye gold-quartz-sulfide occurrence in the Polar Urals (Manitanyrd Ridge) KW gold KW ore occurrences KW pyrite-arsenopyrite type KW sulphur isotopic composition KW Niyayu ore zone KW Manitanyrd ridge KW Polar Urals JO Vestnik of geosciences AU Mayorova, T.P. AU Efanova, L.I. AU Sokerina, N.V. PY 2022 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"