S. K. Shelting, A. A. Sheikov

Seismic stratigraphic subdivision of the Neopleistocene in the Black Sea abyssal basin for the Crimean series sheets legend of the State Geological Map of the Russian Federation at a scale of 1 : 200,000

Abstract. Seismic survey data interpretation resulted in describing six overlap­ping accumulative sequences forming the Don–Kuban deep sea fan. Three lower sequences belong to the Don fan in the mouth of canyons abeam of the Kerch Strait. Three upper sequences records present systems of channels, levees, suprafans relative to the Don fan and Kuban fan pertinent to the Anapa canyon. In the records, identification of six Don–Kuban deep sea fan sequences, which correspond to the Neopleistocene superhorizons (climatorythms), facilitates seismic stratigraphic subdivision of the Neopleistocene sediments section in the Black Sea abyssal basin. The Don–Kuban deep sea fan section can refer to a key seismic stratigraphic section, stratotype of the Neopleistocene stratigraphic boundaries of the abyssal basin.

Keywords: Black Sea, Quaternary, Neopleistocene, seismic stratigraphy, deep sea fan, shelf mapping, sea level changes