New data on the spatial distribution of the Paleogene lithostratigraphic units in the offshore part of the Moesian Platform southeast of the town of Varna

The study is based on lithostratigraphic interpretation of three seismic profiles and reinterpretation of five borehole logs in the offshore part of the Moesian Platform southeast of the town of Varna. Three formal lithostratigraphic units were identified – Komarevo Formation (Thanetian), Avren Formation (uppermost Ypresian–upper Priabonian), and Ruslar Formation (Oligocene). New data on the lithology, stratigraphic and lateral relationships, as well as the thickness and internal structure of the units were obtained.