Mezen Basin

The Mezen Basin is a sedimentary basin located in northwestern Russia. It list southeast of the White Sea and bounds the Timanide Orogen to the north and west. The basin is classified as a pericratonic and epicratonic foreland basin within the East European Craton. The Mezen Basin contains the following pre-Vendian sediments: the Ust-Nafta Group with a maximum thickness of 1200 meters, on top of this is rests the Safonovo Group made up of carbonates and siliciclastic sediments reminiscent of flysch. The Safonovo Group upward end is a unconformity that separates it from the poorly sorted sandstones of the Uftuga Formation.