Quantitative calcareous nannoplankton biostratigraphy of the Oligocene/Miocene boundary interval in the northern part of the Buda Basin (Central Paratethys)

Authors

  • Katarína Holcová Department of Geology and Paleontology, Charles University of Prague, Faculty of Sciences, Albertov 6, CZ-128 43 Praha 2

Keywords:

Central Paratethys, Oligocene/Miocene boundary, calcareous nannoplankton, quantitative biostratigraphy

Abstract

Relative abundances of seventeen calcareous nannoplankton species were analysed from around the Oligocene/Miocene boundary interval (NP 25–NN 2 Zones) in the northern part of the Buda Basin (Central Paratethys). A succession of four bioevents can be observed in all sections: FAD of Helicosphaera carteri, FAD of Reticulofenestra cf. pseudoumbilica, and FADs of Discoaster druggii and Helicosphaera scissura, FAD of Helicosphaera ampliaperta. The Oligocene/Miocene boundary lies between the FAD of Reticulofenestra cf. pseudoumbilica and FADs of Discoaster druggii and Helicosphaera scissura; events known to approximate it are not recognized. 

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Published

2012-07-02

Issue

Vol. 49 No. 3 (2005)

Section

Articles

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