About the time of a last connection between the Caspian and Black Seas during the Late Pleistocene

Abstract

A comparative analysis of sections of soil columns from the northern part of the Black Sea and the Northern and Middle Caspian Sea was performed. In the Black Sea, the New, Old Black Sea and New Evksin sediments were identified, the features of their lithological composition were revealed and the age of 14C was established. Shallow and deep-water Novocaspian, Mangyshlak, Verkhnekhvalynsky, Nizhnekhvalynsky, Athelsky and Hyrkan horizons are identified and correlated in the Caspian Sea. As a result, the identity of the structure of the continuous deep-water sections of the compared reservoirs and the synchronicity of the Novoevksin and Late Khvalyn layers are established, which suggests the absence of a connection between the Novoevksin and Early Khvalyn seas.