V.I. LEONTEV, YA.YU. BUSHUEV, K.A. CHERNIGOVCEV (SPMU)

Samolazovskoe gold deposit (Central Aldan ore district): geological structure and mineralization of deep horizons

This article describes the geological structure of the deep horizons of the Samolazovsky deposit. Two new mineralization types are identified: stringer­-porphyry stockwork type, brecciated-­veined type. The bulk ore mineralization is associated with the hydrothermal­-metasomatic association represented by roscoelite, fluorite, carbonates, adularia, and quartz. The occurrence modes of ore mineralization are bulky bodies of poorly developed metasomatites, narrow veins and breccia cement in mineralized shear zones. Ore minerals are mainly pyrite and marcasite; less bournonite, fahlore, sphalerite, galena, and chalcopyrite; rarely coloradoite and calaverite; very rare native gold. The typical ore association is Au-­Te-­Sb-­As-­Tl-­V­-Hg-­W.
Keywords: gold, tellurides, epithermal ore, Samolazovskoe deposit, Aldanian Shield, South Yakutia.