A new local stratigraphic scheme of the Upper Cambrian - Ordovician Pay-Khoy (Ugra peninsula)

This work presents a new stratigraphic scheme of the Upper Cambrian - Ordovician Pay-Khoy. It comprises all the information currently available on sedimentary and volcanic formations. Two stratigraphic regions have been identified as part of the Pay-Khoy subzone of the Lemva zone for the Upper Dapingian - Hirnantian. In the first isolated Yambpei region deposits that can be attributed to transitional facies between the shelf formations of the Elets zone and the deep-water formations of the Lemvinskaya zone are described. The new Severnyy Ruchey formation was distinguished in the volume of the upper part of the Hengur formation in the Central-Pay-Khoy district. All local stratigraphic units are brought into combliance with the Stratigraphic Code.