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标题：LATE CRETACEOUS FORAMINIFERIDS FROM SECTIONS IN THE ZABRATóWKA AREA (SKOLE NAPPE, OUTER CARPATHIANS, POLAND)
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作者：Oliwia KOWALCZEWSKA ; M. Adam GASISKI
期刊名称：Rocznik Polskiego Towarzystwa Geologicznego
印刷版ISSN：0079-3663
出版年度：2018
卷号：88
期号：1
页码：71-85
语种：English
出版社：Polskie Towarzystwo Geologiczne
摘要：Well preserved Late Cretaceous–Palaeogene planktonic and benthic foraminiferal assemblages were studied in the Zabratówka section of the Ropianka Formation in the Skole Nappe. The Racemiguembelina fructicosa and Abathomphalus mayaroensis standard foraminiferal biozones were distinguished. The K-T boundary was recognized within the interval between samples ZB10B–ZB9A, mainly composed of marly mudstones, interlayered with thin-bedded sandstones, and is characterized by the disappearance of planktonic taxa and an abundance of agglutinated species. Foraminiferal assemblages, collected from the turbiditic flysch-type sediments, indicate a primary depositional environment on the outer shelf to the upper part of the continental slope, with shallowing during the Maastrichtian in the part of the Skole Basin studied. The foraminiferids correspond to the assemblages of a palaeobiogeographical “transition” zone, located between the Boreal and Tethyan domains.
关键词：Foraminiferids;palaeobathymetry;Late Cretaceous;Maastrichtian;Skole Nappe;Ropianka Formation;Outer Carpathians