Morozkinskoye gold deposit (southern Yakutia): age and ore sources

The paper presents the results of comprehensive isotope geochemical (Re-Os, Pb and ?34S) study sulfide mineralization Morozkinskoye deposit. ore zones deposit are localized in syenite massif Mount Rudnaya, which is located within Central Aldan region (southern Yakutia). Gold represented by vein-disseminated or vein type manifested acidic low-temperature metasomatites – beresites (Qz-Ser-Ank-Py). For first time we obtained an age estimate gold ~ 129 ± 3 Ma, synchronism hydrothermal process beresites, formed deposit, magmatic crystallization syenites Rudnaya (~130 Ma). osmium initial isotopic composition studied sulfides indicates a mixed mantle-crustal source mineralization. New lead data indicate predominance mantle insignificant role lower crust lead, while pyrite denotes presence upper crustal material genesis. ?34S values vary from –2.3 to +0.6 ‰ predominantly sulfur ores.