Palaeontological analysis of Middle Miocene siltstones at Wiślica (Carpathian Foredeep, Poland)

Middle Miocene siltstones of the Skawina Formation that crop out at Wiślica, within the axial part of the Carpathian Foredeep in Poland, were analysed. The deposits studied contain numerous benthic and planktonic foraminifera, ostracods, echinoid spines, bryozoans, bivalves and otoliths. The fossils...

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Bibliographic Details
Published in:Geologos
Main Author: Płonka Katarzyna
Format: Article in Journal/Newspaper
Language:English
Published: Sciendo 2017
Subjects:
Online Access:https://doi.org/10.1515/logos-2017-0003
https://doaj.org/article/a6dc7c3df85d48bb910b6e3aebd7c731
Description
Summary:Middle Miocene siltstones of the Skawina Formation that crop out at Wiślica, within the axial part of the Carpathian Foredeep in Poland, were analysed. The deposits studied contain numerous benthic and planktonic foraminifera, ostracods, echinoid spines, bryozoans, bivalves and otoliths. The fossils recognised document an early ‘Badenian’ (= Lang-hian in the Mediterranean area), or, more precisely, ‘Moravian’ age of the deposit. Palaeoecological analysis suggests normal-marine conditions with full salinity. The studied siltstones were deposited from middle–lower shoreface to lower–offshore, warm surface water and locally suboxic to dysoxic conditions in the sediment.