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Foraminiferal and Palynological Record of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys
Peryt, D.; Gedl, P.; Worobiec, E.; Worobiec, G.; Peryt, T.M. Foraminiferal and Palynological Records of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys. Geosciences2024, 14, 86.
Peryt, D.; Gedl, P.; Worobiec, E.; Worobiec, G.; Peryt, T.M. Foraminiferal and Palynological Records of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys. Geosciences 2024, 14, 86.
Peryt, D.; Gedl, P.; Worobiec, E.; Worobiec, G.; Peryt, T.M. Foraminiferal and Palynological Records of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys. Geosciences2024, 14, 86.
Peryt, D.; Gedl, P.; Worobiec, E.; Worobiec, G.; Peryt, T.M. Foraminiferal and Palynological Records of an Abrupt Environmental Change at the Badenian/Sarmatian Boundary (Middle Miocene): A Case Study in Northeastern Central Paratethys. Geosciences 2024, 14, 86.
Abstract
The Badenian/Sarmatian boundary in the Central Paratethyan basins is characterized by a change from open marine conditions during the late Badenian to the assumed brackish conditions during the early Sarmatian. Foraminiferal and palynological results of the Badenian/Sarmatian boundary interval in the Babczyn 2 borehole (SE Poland) showed that the studied interval accumulated under variable, unstable sedimentary conditions. The Badenian/Sarmatian boundary as correlated with a sudden extinction of stenohaline foraminifera is interpreted as due to the shallowing of the basin. The lack of foraminifera and palynomorphs just above the Badenian/Sarmatian boundary can reflect short-term anoxia. The composition of euryhaline assemblages characteristic for the lower Sarmatian part of the studied succession indicates marine to hypersaline conditions.
Keywords
Foraminifers; palynofacies; dinocysts; pollen and spores; Miocene; Central Paratethys; Carpathian Foredeep; Poland
Subject
Environmental and Earth Sciences, Geophysics and Geology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
