Cryogenic separation of glauconite and foraminifera from Cretaceous/Paleogene boundary in Nasiłów, Poland, for radiometric dating and stratigraphy

• Authors: Artur Wójtowicz , Tomasz Pieńkos , Stanisław Hałas , Danuta Peryt , Tomasz Durakiewicz , Agnieszka Młynek
• Languages of publication: EN

Abstracts

EN

We have demonstrated that cryogenic separation of glauconite and foraminifera from the host rock allows to preserve the integrity of extracted specimens, assures minimal damage and causes no artificial fractionation. The K/Ar dating of two glauconite samples from Cretaceous/Paleogene boundary in the Nasiłów outcrop yields 62.0 and 66.3 Ma. The discrepancy in these dates, much larger than expected from analytical precision, may result from too low %K, which was 5.91 and 5.73, respectively.

• Publisher: Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
• Journal: Annales Universitatis Mariae Curie-Skłodowska, sectio AAA – Physica
• Year: 2014
• Volume: 69

Dates

published

2014

online

22 - 05 - 2015

Contributors

author

Artur Wójtowicz

author

Tomasz Pieńkos

author

Stanisław Hałas

author

Danuta Peryt

author

Tomasz Durakiewicz

author

Agnieszka Młynek

References

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Identifiers

DOI

10.17951/aaa.2014.69.23