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The evolution of the Carpathian Foredeep Basin during the latest Badenian and Sarmatian (Middle Miocene): inferences from micropalaeontological data

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dc.abstract.enSeven Middle Miocene (Upper Badenian to Lower Sarmatian) sedimentary sections of the Central Paratethys, two from the Polish Carpathian Foredeep Basin (PCFB) and five from the Eastern Carpathian Foreland Basin (ECFB) of Romania and the Republic of Moldova have been analysed micropalaeontologically to better constrain the Badenian-Sarmatian Extinction Event, characterized by significant taxonomic impoverishment of both foraminifers and ostracods. Our studies show significant palaeoenvironmental changes in the basin including depth, salinity, oxygenation, and organic matter flux. The occurrence of moderately diverse planktonic foraminifera (Globigerina, Globigerinita, Globorotalia, Trilobatus, Orbulina, Velapertina) in the Upper Badenian deposits of the PCFB as well as in the ECFB and their rarity in the lowermost Sarmatian indicate an almost fully marine environment during the latest Badenian, followed by a significant regression and possible appearance of much more restricted marine conditions across the boundary. The taxonomic composition of the Sarmatian foraminifera, ostracoda and calcareous nannofossils indicate that during this interval the salinity fluctuated strongly, with the water regime varying from brackish to normal marine. In addition, the identified micropalaeontological assemblages identified show palaeoenvironmental similarity across different basins of the Central Paratethys. This supports a hypothesis of possible connections during the latest Badenian between different areas of the Central Paratethys, as well as of the existence of a gateway between the Central Paratethys and the Mediterranean realm.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorMELINTE-DOBRINESCU, Mihaela Carmen
dc.contributor.authorLOGHIN, Sergiu
dc.contributor.authorPARUCH-KULCZYCKA, Jolanta
dc.contributor.authorDUMITRIU, Simina Dumitriţa
dc.contributor.authorDubicka, Zofia
dc.date.accessioned2024-01-26T10:12:41Z
dc.date.available2024-01-26T10:12:41Z
dc.date.issued2020
dc.description.financePublikacja bezkosztowa
dc.description.number4
dc.description.volume64
dc.identifier.doi10.7306/GQ.1568
dc.identifier.issn1641-7291
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/122283
dc.identifier.weblinkhttp://dx.doi.org/10.7306/gq.1568
dc.languageeng
dc.pbn.affiliationearth and related environmental sciences
dc.relation.ispartofGeological Quarterly
dc.relation.pages1004-1022
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enMiddle Miocene
dc.subject.enCentral Paratethys
dc.subject.enforaminifera
dc.subject.enostracoda
dc.subject.ennannofossils
dc.subject.enpalaeoenvironment
dc.titleThe evolution of the Carpathian Foredeep Basin during the latest Badenian and Sarmatian (Middle Miocene): inferences from micropalaeontological data
dc.typeJournalArticle
dspace.entity.typePublication