Lithology and conditions of the formation of Paleozoic rocks in northern areas of the Scythian Plate

The Paleozoic sequence recovered during the prospecting for oil and gas in different areas of the Scythian Plate is composed of terrigenous rocks (sandstones, siltstones, silty pelites, mudstones, shales, and phyllites) of different stages of alteration varying from late catagenesis to initial metamorphism. Their investigation allowed us to refine the sedimentation environment during different Carboniferous and Permian epochs at the southern margin of the East European Craton.