Abstract
Purpose. Micropaleontological characteristics of individual exposed sections of Turonian-Maastrichtian sediments of the Pieniny Klippen Belt in the Ukrainian Carpathians with detailed age determination by foraminifera. Method. Field geological and stratigraphic research, foraminiferal analysis. Results. In the studied sections, Turonian, Coniacian, Campanian and Maastrichtian deposits were identified. The deposits of the Lower Turonian are determined by the disappearance of the genus Rotalipora and the appearance of the species Dicarinella hagni; the Upper Turonian was identified by the distribution of representatives of the genus Marginotruncana. According to the division of the Upper Cretaceous of the Ukrainian Carpathians after planktonic foraminifera, the Dicarinella concavata Zone (top of the Turonian-most of the Coniacian) and the sequence of zones in the Campanian-lower Maastrichtian interval were identified: Globotruncanita elevate Zone; Contusotruncana morozovae Zone, Globotruncanita stuarti Zone. The established subdivisions are correlated with the biochronozones of the modern Geologic Time Scale such as Dicarinella concavata Zone (top of the Turonian – most of the Coniacian), Globotruncanita elevate Zone, Contusotruncana plummerae Zone, Radotruncana calcarata Zone, Globotruncanella havanensis Zone, Gansserina gansseri Zone within the Campanian-lowermost Maastrichtian. Scientific novelty. For the first time, exposed sections of the Turonian-Maastrichtian of the Pieniny Klippen Belt of the Ukrainian Carpathians were studied and correlated with modern regional and international foraminiferal scales for the appearance of index species. Practical significance. The results obtained are important for the compilation of regional stratigraphic schemes and interregional correlation of sediments.
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