Sferule z granicy Kreda-Paleogen (Lechówka, Polska) – wstępne dane

• Authors: Tomasz Brachaniec , Krzysztof Szopa , Łukasz Karwowski , Tomasz Krzykawski , Mariusz Salamon , Krzysztof Brom

Title variants

EN

Spherules from the Cretaceous–Paleogene boundary (Lechówka, Polska) – preliminary data

• Languages of publication: PL

Abstracts

EN

Samples of boundary clay from Cretaceous–Paleogene deposits from Lechówka, Poland were examined for spherules to confirm the impact origin of the sediment. The chemical composition of investigated spherules show similarities to material from the K–Pg boundary from Stevns Klint. The impact genesis of the spherules is confirmed by the presence of nickel-rich spinel grains on their surfaces. The deposits with spherules are built by smectite with Al and Mg enrichment. This cheto smectite is forming as a result of the weathering of the impact glass.

Keywords

EN

Cretaceous–Paleogene boundary; impact origin; smectite; spherule; spinel

Discipline

• GEOPHYSICS: GEOPHYSICS

• Publisher: Polskie Towarzystwo Meteorytowe
• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2015
• Volume: 6
• Pages: 17-22

Contributors

author

Tomasz Brachaniec

• Uniwersytet Śląski, Wydział Nauk o Ziemi

author

Krzysztof Szopa

• Uniwersytet Śląski, Wydział Nauk o Ziemi

author

Łukasz Karwowski

• Uniwersytet Śląski, Wydział Nauk o Ziemi

author

Tomasz Krzykawski

• Uniwersytet Śląski, Wydział Nauk o Ziemi

author

Mariusz Salamon

• Uniwersytet Śląski, Wydział Nauk o Ziemi

author

Krzysztof Brom

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• Document Type: article