International Geological Journal - Official Journal of the Carpathian-Balkan Geological Association

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Contents

Turbidite sedimentology, biostratigraphy and paleoecology: A case study from the Oligocene Zuberec Fm. (Liptov Basin, Central Western Carpathians)

Published: Aug 2019

Pages: 279 - 297

DOI: https://doi.org/10.2478/geoca-2019-0016

Authors: DUŠAN STAREK, VLADIMÍR ŠIMO, SILVIA ANTOLÍKOVÁ, TOMÁŠ FUKSI

Abstract: Outcrops of a thick turbiditic succession are exposed on the northern bank of the Liptovská Mara reservoir near Liptovská Ondrašová and Ráztoky. The section consists of rhythmic, predominantly thin- to medium-bedded turbidites of the Rupelian age. Their biostratigraphy is based on the calcareous nannofossils. Facies associations of these deposits represent different components of depositional lobe deposits in the turbidity fan system, including mainly the lobe fringe and lobe distal fringe/inter-lobe facies associations and locally the medium bedded deposits of the lobe off-axis facies association. This interpretation is supported by statistical analysis. The deep-sea turbiditic deposits contain trace fossil associations, which include deep-tier fodinichnia and domichnia up to shallow-tier graphoglyptids. Paleocurrent measurements indicate that the majority of sedimentary material was transported from SW and W.

Keywords: Western Carpathians, Oligocene, turbidites, trace fossils, calcareous nannofossils

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