Russia, Sakha Republic (Yakutia), Gross gold deposit, upper Usu river. Metasomatically modified polymictic sandstones of the olonnokon series with quartz veins. Gold ore. Paleoproterozoic.
Russia, Sakha Republic (Yakutia), Tabornoye gold deposit, upper Usu river. Metasomatically modified polymictic sandstones of the olonnokon series with quartz veins. Gold ore. Paleoproterozoic.
Russia, Magadan region, starboard side of the valley of the Sturmovoy creek. The alternation of siltstones and sandstones with quartz veins and lenses containing gold mineralization. Low Jurassic.
Russia, Irkutsk region, watershed of the rivers Homolkho and Imnyakh, gold deposit "Golets Vysochayshy", north wall of the pit. Carbon quartz-mica schists. The first photo shows quartz veins in the pit wall. Schists contain veins, lenses, and impregnations of pyrite and pyrrhotite.Khomolkhinskaya series. Thickness 650 meters. Paleoproterozoic.
Russia, Irkutsk region, the upper reaches of the creek of Alexander Nevsky, gold deposit - "Nevskoe". Gold ore.Quartz sulfide mineralization in paleoproterozoic quartz sandstones.Mineralization includes: pyrite, arsenopyrite, pyrrhotite, their oxides, gold, quartz and carbonate-quartz veins.