Lower–Middle Eocene Formations of the Crimean Peninsula: Facial Peculiarities and Sedimentogenesis Conditionsстатья
Статья опубликована в журнале из перечня ВАК
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Аннотация:This work considers the structure and conditions of the formation of deposits of the Simferopolsky regional stage of the Crimean Peninsula. The deposits of this stage include planktonic foraminifera zones(Morozovella aragonensis and Acarinina bullbrooki) and nanoplaktonic zones: Marthasterites tribrachiatus (the upper part), Discoaster lodoensis, Discoaster sublodoensis. The deposits of this interval throughout most
of the Crimean Peninsula represent a nummulitic bank, which formed in shallow warmwater basin and was isolated by a carbonate platform. The distribution of rocks of this regional stage, the facial change, and a number of interruptions are shown in the stratigraphic profile. The facial transitions within the carbonate platform point to variations in the basin’s depth, as well as periodical changes in the relative sea level, which were not only of a eustatic nature, but were determined by the periodic rise of the Simferopol Uplift.
Keywords: Crimea Peninsula, Eocene, nummulitic facies, sequences, tract systems, paleogeography, tectonic