The First Data on the Structure and Mineral Composition of Ores at the Tarakon Potential Gold Field, Russian Far East

Аннотация

The original materials obtained, along with the literature data (hydrochemical contrasting halos), make it possible to predict a new (Tarakon) gold ore field within the eastern part of the Argun superterrane. Commercial gold concentrations are noted in quartz metasomatic rocks after granite and limestone. The amount of ore minerals usually does not exceed 5–10%. They commonly occur in the rocks as micron and submicron particles mainly of pyrite, less often, of galena, sphalerite, chalcopyrite, ilmenite, hematite, magnetite, fahlore, and native high-grade gold. It is assumed that formation of the Tarakon gold ore field, as well as of most ore bodies in the region, is related to Late Mesozoic magmatism.