Facebook Instagram Twitter RSS Feed PodBean Back to top on side

Source areas of the Grybów sub-basin: micropaleontological, mineralogical and geochemical provenance analysis (Outer Western Carpathians, Poland)

In: Geologica Carpathica, vol. 66, no. 6
Marta Oszczypko-Clowes - Patrycja Wójcik-Tabol - Mateusz Płoszaj

Details:

Year, pages: 2015, 515 - 534
Language: eng
Keywords:
Grybów Unit, Ropa tectonic window, Oligocene, calcareous nannofossils, mineral composition, geochemistry, recycling
About article:
The Grybów Unit occurring in the Ropa tectonic window was the subject of micropaleontological and geochemical investigation. Studies, based on calcareous nannofossils, proved that the level of reworked microfossil is not higher than 22 % and it varies between two sections. Quantitative analyses of the reworked assemblages confirmed the domination of Cretaceous and Middle Eocene species. The Sub-Grybów Beds, Grybów Marl Formation and Krosno Beds were assigned to the Late Oligocene and represent the terminal flysch facies. Detrital material accumulated in the Oligocene sediments originated from the Marmarosh Massif, which is the eastern prolongation of the Fore-Magura Ridge. The microscopically obtained petrological features agree with the chemical composition of the samples. Mica flakes, rounded grains of glauconite, heavy mineral assemblage, including abraded grains of zircon, rutile and tourmaline as well as charred pieces of plant tissues are reworked components. Enrichment in zircon and rutile is confirmed geochemically by positive correlation between Zr and SiO2. Zr addition is illustrated on 10 ×Al2O3–Zr–200 ×TiO2 and Zr/Sc vs. Th/Sc diagrams. Interpretation of the A–CN–K diagram and variety of CIA and CPA values indicate that the source rocks were intensely weathered granite-type rocks.
How to cite:
ISO 690:
Oszczypko-Clowes, M., Wójcik-Tabol, P., Płoszaj, M. 2015. Source areas of the Grybów sub-basin: micropaleontological, mineralogical and geochemical provenance analysis (Outer Western Carpathians, Poland). In Geologica Carpathica, vol. 66, no.6, pp. 515-534. 1335-0552. DOI: https://doi.org/10.1515/geoca-2015-0042

APA:
Oszczypko-Clowes, M., Wójcik-Tabol, P., Płoszaj, M. (2015). Source areas of the Grybów sub-basin: micropaleontological, mineralogical and geochemical provenance analysis (Outer Western Carpathians, Poland). Geologica Carpathica, 66(6), 515-534. 1335-0552. DOI: https://doi.org/10.1515/geoca-2015-0042
About edition: