The K-Pg boundary section at Nasiłów, Poland: stratigraphic reassessment based on foraminifers, dinoflagellate cysts and palaeomagnetism

Remin, Zbyszek; Cyglicki, Michał; Barski, Marcin; Dubicka, Zofia; Roszkowska-Remin, Joanna

doi:10.7306/gq.1614

Cited by 3 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some of them are still in use even though the opoka definition and recommendation of the analytical techniques which enable to distinguish it have been given (Jurkowska et al 2019, Jurkowska & Świerczewska-Gładysz 2020a, Jurkowska 2022. The term siliceous chalk was commonly used also for describing opoka from Poland (Machalski & Jagt 1998, Peryt 2000, Walaszczyk 2012, Machalski & Malchlyk 2016, Remin et al 2021, 2022, which resulted in further confusion around the Opoka -a mysterious carbonate-siliceous rock: an overview of general concepts term. From a mineralogical perspective, siliceous chalk is a carbonate rock which contain > 95% calcium carbonate in the form of coccoliths and micritic grains Fabricius (2007) (chalk) with chalcedony (= quartz) aggregates (Faÿ-Gomord et al 2016) and authigenic nano-α-quartz (Jakobsen et al 2000, Lindgreen et al 2011.…”

Section: Opoka -Synonyms Used In the Literaturementioning

confidence: 99%

Opoka – a mysterious carbonate-siliceous rock: an overview of general concepts

Jurkowska

Świerczewska-Gładysz²

2022

geol

View full text Add to dashboard Cite

The opoka is a carbonate-siliceous marine sedimentary rock, forming a thick succession of Upper Cretaceous age in Poland and in other regions of Europe. This rock has been studied for over 150 years, but only the use of modern analytical techniques enables for the formulation of its mineralogical definition, which identifiesthe distinct features of opoka and allows it to be distinguished from other rocks (e.g. chalk, gaize). Parallel to the petrographic research on opoka, its palaeobathymetric interpretations, which were based on the palaeotectonic models of Danish-Polish Trough inversion has been revised. Depending on the model of palaeotectonic history, opoka has been interpreted as a deep-water or shallow facies, without detailed petrographic studies of its mineralogical composition. The paper presents various aspects of opoka, including history of the term, nomenclature, mineralogical composition, microtexture and palaeoecological significance of Cretaceous opoka. New data which permit precise definition of this rock term, and its mineralogical composition are discussed in the light of palaeoecological reconstructions, bathymetry and existing models of opoka distribution.

show abstract

Section: Opoka -Synonyms Used In the Literaturementioning

confidence: 99%

Opoka – a mysterious carbonate-siliceous rock: an overview of general concepts

Jurkowska

Świerczewska-Gładysz²

2022

geol

View full text Add to dashboard Cite

show abstract

Contributions of Trimorphic Life Cycles to Dispersal and Evolutionary Trends in Large Benthic Foraminifers

Hallock

Reymond

2022

J. Earth Sci.

View full text Add to dashboard Cite

Planktonic Foraminiferal Biostratigraphy of the Upper Cretaceous of the Central European Basin

2022

View full text Add to dashboard Cite

Planktonic foraminifera are one of the most stratigraphically important groups of organisms for the Cretaceous system. However, standard foraminiferal zonations based mostly on species from the Tethyan bioprovince are hardly applicable in temperate regions where warm-water taxa are scarce or lacking. We propose a foraminiferal zonation based on foraminiferal events recognized in the northern Foraminiferal Transitional Bioprovince, which likely has a high correlation potential at least at a regional scale. Fifteen planktonic foraminiferal zones are distinguished from the upper Albian up to the uppermost Maastrichtian strata in extra-Carpathian Poland and western Ukraine. From the bottom to the top, Thalmanninella appenninica, Th. globotruncanoides, Th. reicheli, Rotalipora cushmani, Whiteinella archaeocretacea, Helvetoglobotruncana helvetica, Marginotruncana coronata, M. sinuosa, Pseudotextularia nuttalli, Globotruncana linneiana, G. arca, Contusotruncana plummerae, Rugoglobigerina pennyi, Globotruncanella petaloidea and Guembelitria cretacea. These zones are calibrated by macrofaunal zonations.

show abstract

The K-Pg boundary section at Nasiłów, Poland: stratigraphic reassessment based on foraminifers, dinoflagellate cysts and palaeomagnetism

Cited by 3 publications

References 0 publications

Opoka – a mysterious carbonate-siliceous rock: an overview of general concepts

Opoka – a mysterious carbonate-siliceous rock: an overview of general concepts

Contributions of Trimorphic Life Cycles to Dispersal and Evolutionary Trends in Large Benthic Foraminifers

Planktonic Foraminiferal Biostratigraphy of the Upper Cretaceous of the Central European Basin

Contact Info

Product

Resources

About