Abstract: Lithological units outcroping in the investigation area, formed in various environments which are developed through the time invertal from Permo-Carboniferous to recent. Acidic magmatites of Permo-Carboniferous ageform basement of the area of investigation. Shallow marine Liassic-Lower Malm sequence with volcano-sedimentarycharacter overlies this basement by angular unconformity. This unit is overlain conformably by Upper Jurassic-LowerCretaceous limestones» The Hotnvian-Campanian flysck formed by rapid deepening of the environment during middleLower Cretaceous, conformably deposited on the Upper Jurassic-Lower Cretaceous carbonates. Upper Campanien andLower Maastrihtien are represented by volcanics and pelagic carbonates respectively.Thus, uninterrupted marine sedimentation starting at Liassic continued till end of Upper Cretaceous. Eocene sequencehas shallow marine elastics at the base, but terminates by volcano-sedimentary units. Oligocène is represented by terrestrial elastics and basic volcanics. These units are overlain unconformably by Plio-Quaternary volcanics widespread inthe region.