The Yenisey Fold Belt is a fold belt in Russia that divides the Siberian craton from the West Siberian basin, extending about 700 kilometres (430 mi),[1] with NW-SE strike.
This belt is divided into northern and southern regions by the Angara fault which has left slip.
[2] The Central Angara Terrane is intruded by alkaline granites with NNW trend in the elongated bodies.
The Eastern Terrane lacks signs of magmatism,[4] instead it is made up of overriding late Neoproterozoic deposits above older groups, most of which are intruded by granites.
[2] The late Riphean strata of the Sukhopit, Tungusik, and Oslyan series formed on along a continental margin of open ocean followed by a back-arc basin from 1050 to 1150 million years ago.