The Maastrichtian Section of Mount Kyz-Kermen (Crimean Mountains): Biostratigraphy, Sedimentation Conditions, and Paleogeography

Авторы: Yakovishina E.V., Grechikhina N.O., Bordunov S.I., Kopaevich L.F.
Журнал: Moscow University Geology Bulletin
Том: 77
Номер: 6
Год издания: 2022
Издательство: Allerton Press Inc.
Местоположение издательства: United States
Первая страница: 670
Последняя страница: 681
DOI: 10.3103/S0145875222060151
Аннотация: Abstract—This paper presents the results of a comprehensive study of the Maastrichtian sequence of MountKyz-Kermen located in the Southwestern Crimea. The section consists of a rhythmically bedded carbonatesequence gradually replaced by carbonate sandstones. The study of rocks in thin sections made it possible toidentify eight lithotypes, and the chemical analyses yielded variations in individual elements in the rock composition.The interpreted data on planktonic and benthic foraminifera made it possible to determine the ageof deposits within the accuracy of zones and beds with fauna and to find one more supposed break in the middleof this section, coinciding with a noticeable change in the rock composition. The assay analysis of foraminiferaassemblages together with lithological and geochemical results made it possible to determine thatthe studied section was formed in open carbonate-platform conditions at the depth of the middle–outer shelf
Добавил в систему: Яковишина Елена Васильевна

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