Jurassic

Russia, Chita region, Pogromnoye gold deposit. Albite-sericite-quartz metasomatite with quartz and carbonate-quartz veins and interspersed with arsenopyrite. Gold ore. Gold - 8.3 g/t. Upper Jurassic.

Russia, Chita region, Pogromnoye gold deposit. Carbon siltstones with quartz veins. Ikagiyskaya series. Lower Jurassic.

Russia, Sakha Republic (Yakutia), Gross gold deposit, upper Usu river. Syenite-porphyry sill. Aldanskiy complex. Upeer Jurassic - lower Cretaceous. Absolute age - 142 million years (U/Pb).

Russia, Sakha Republic (Yakutia), Gross gold deposit, upper Usu river. Syenite-porphyry sill. Aldanskiy complex. Upeer Jurassic - lower Cretaceous. Absolute age - 142 million years (U/Pb).

Russia, Sakha Republic (Yakutia), Gross gold deposit, upper Usu river. Syenite sill. Aldanskiy complex. Upeer Jurassic - lower Cretaceous. Absolute age - 142 million years (U/Pb).

Russia, Magadan region, left side of the Duck river. Quartz-albite diorite porphyrite with quartz-albite veins. These are the famous Ducks dykes. Dyke №7. The dyke is a slab-like body with a capacity of 0.5 m in the East to 3.5 m in the West, accompanied by apophyses that run parallel to the sedimentary rocks (lower Jurassic siltstone). It is traced to a depth of 250 meters. Xenoliths are rare. Sometimes there are intersecting, until the disappearance of dykes.

Russia, Magadan region, left side of the Duck river. Quartz-feldspar siltstones. Lower Jurassic.

Russia, Magadan region, left bank of the Kolyma river. Quartz-feldspar siltstones with quartz veins. Lower Jurassic.

Russia, Magadan region, starboard side of the valley of the river Burkhala. Siltstones with interbeds of sandstones with quartz veins, lenses. Quartz contains gold mineralization. Susumanskaya series??? Fossil: Inoceramus sp. indet. Middle Jurassic. Aalenian.

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.