The Boundary of the Turonian and Coniacian of the Northwestern Caucasus

Авторы: Yakovishina E.V., Bordunov S.I., Kopaevich L.F., Krasnova E.A., Netreba D.A.
Журнал: Moscow University Geology Bulletin
Том: 77
Номер: 5
Год издания: 2022
Издательство: Allerton Press Inc.
Местоположение издательства: United States
Первая страница: 479
Последняя страница: 488
DOI: 10.3103/S0145875222050179
Аннотация: DOI: 10.3103/S0145875222050179The results of a comprehensive study of the boundaries of the Turonian–Coniacian in the UpperCretaceous deposits of the Abinskii region of the Northwestern Caucasus, composed of rhythmically constructedcarbonate strata of the hemipelagic type, are presented. Biostratigraphic analysis of foraminiferacomplexes made it possible to identify zones in the section that are comparable to those proposed for thePoint of the Global Stratotype of the boundary of the Coniacian in Germany. On the basis of chemostratigraphic(isotope) studies, the levels of abiotic events traced in the section and other territories have beenestablished. The Shapsug section, after further study, can be proposed as a possible Hypostratotype (Limitotype)of the Turonian–Coniacian boundary for the territory of the Russian Federation
Добавил в систему: Бордунов Сергей Иванович

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