Fragmenty kopalnego meteorytu z Lechówki: charakterystyka mineralogiczna i geochemiczna

• Authors: Krzysztof Szopa , Łukasz Karwowski , Tomasz Krzykawski , Tomasz Brachaniec

Title variants

EN

Fragments of strongly weathered meteorite from Lechówka: mineralogical and geochemical characterisation

• Languages of publication: PL

Abstracts

EN

Fossil iron meteorites are extremely rare in the geological sedimentary record. In the boundary clay from the outcrop at the Lechówka quarry (Poland), fragments of the paleometeorite were found in the Cretaceous-Paleogene boundary clay layer. The fragments of meteorite (2–6 mm in size) and meteoritic dust are metallic-grey in colour. Analyses of the meteorite from Lechówka reveal the presence of Ni-rich minerals with a total Ni amount of 2–3 wt%. They are represented by: taenite, kamacite, schreibersite, Ni-rich magnetite, and Ni-rich goethite. The investigated remnants of paleometeorite apparently represent an independent fall and does not seem to be derived from the K-Pg impactor.

Keywords

EN

Cretaceous-Paleogene boundary; Lechówka; fossil iron meteorites; kamacite; meteorites; paleometeorite; schreibersite; taenite

Discipline

• GEOLOGY: GEOLOGY

• Publisher: Polskie Towarzystwo Meteorytowe
• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2017
• Volume: 8
• Pages: 100-109

Contributors

author

Krzysztof Szopa

• Katedra Geochemii, Mineralogii i Petrografii, Wydział Nauk o Ziemi, Uniwersytet Śląski

author

Łukasz Karwowski

• Katedra Geochemii, Mineralogii i Petrografii, Wydział Nauk o Ziemi, Uniwersytet Śląski

author

Tomasz Krzykawski

• Katedra Geochemii, Mineralogii i Petrografii, Wydział Nauk o Ziemi, Uniwersytet Śląski

author

Tomasz Brachaniec

• Katedra Geochemii, Mineralogii i Petrografii, Wydział Nauk o Ziemi, Uniwersytet Śląski

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• Document Type: article