Аннотация:In addition to the giant Udokan deposit, the rocks of the
Udokan Supergroup contains several satellite Cu-Ag-Fe
deposits. They are located in different formations at different
stratigraphic levels. They differ strongly in mineral and
chemical composition from the Udokan ores, often displaying
much higher silver grades. The hypogene copper
mineralization in these deposits consists of chalcopyrite,
bornite, and, to a much lesser extent, chalcocite. Many rare
minerals were found here. The deposits are of complex
genesis, and for some, the hydrothermal origin was proven.