Petroleum Potential of Marginal Parts of the Timan-Pechora Sedimentary Basin

The Timan-Pechora sedimentary basin is characterized by complex geological structure and uneven geological and geophysical level of study. The lowest level of study belongs to its marginal parts - junction zones with Pre-Ural trough on the east and Timan ridge on the west. The exploration performed in recent years on the basis of the state budget programs has made it possible to clarify the prospects, reestimate hydrocarbon resources, identify new areas of exploration and priority objects for further exploration. The unity and continuity of the geological structure in the junction areas of land, transit zones and waters are proved. The extensive development of pre-Devonian sediments complexes, including the Vendian - Late Riphean is revealed that led to rethink the age of the basement in the western part of the basin.