Abstract
The mineralogical and geochemical features and the material composition of the ore metaso-matites of the Verkhneyanskoye gold ore field (VGOF) have been studied. VGOF is located in the northern part of the Baikal-Muya belt. Ore bodies are represented by linear stockwork of gold-bearing metasomatites that trace the ore-controlling fault zone. Host rocks are ayulindinskiy metavolcanogenic formation, granitoids and gabbros of the yano-mamakan complex. The rocks in the fault zone have been changed to the ore stage. Аs a result, gold bearing (albite) sericite-quartz-chlorite-carbonate metasomatites and gold-bearing quartz-carbonate vein metaso-matites were formed. At the ore stage, the transformation of enclosing rocks into the fault zone with the formation of gold-bearing (albite) sericite-quartz-chlorite-carbonate metasomatites and gold-bearing quartz-carbonate vein. Gold-bearing pyrite-II and pyrite-III-chalcopyrite-II-galena associations were identified on the territory of the VZRP. Free gold and gold in the form of tellurides (petzite, calaverite) in association with altaite and melonite was found in ore bodies
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