Nowe znaleziska mołdawitów w Polsce

• Authors: Krzysztof Szopa

Title variants

EN

A new discovery of moldavites in Poland

• Languages of publication: PL

Abstracts

EN

Moldavites represent tektites derived from the Ries impact structure ca. 14 Ma. in southern Germany. Approximately 36 moldavite specimens from Poland have been reported since 2012. Characteristic moldavites features, especially bubbles and inclusions of lechatelierite, are reported in all found moldavites. Almost all of them are genetically connected with the Miocene Gozdnica Formation. Only two have been found in Pleistocene sediments, which are part of the Nysa Łużyca river terrace sediments. In 2020, four more moldavites have been collected from Poland. One specimen was found in Gozdnica village, and the other three in Jaroszów village, which is located ~10 km east of Strzegom. Numerous moldavites are generally found in Poland, widely distributed based on the distance from the Ries crater, exceeding 500 km, experimentally determined based on the transport mechanism. However, the lack of the autochthonous tektites indicates that tektites investigated up to now, had to be redeposited in a fluvial environment, probably from the Lusatian area as well as from the Czech Republic.

Keywords

EN

Gozdnica; moldavites; tektites

Discipline

• GEOLOGY: GEOLOGY

• Publisher: Polskie Towarzystwo Meteorytowe
• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2021
• Volume: 12
• Pages: 81-84

Dates

published

2021

Contributors

author

Krzysztof Szopa

• Instytut Nauk o Ziemi, Wydział Nauk Przyrodniczych, Uniwersytet Śląski w Katowicach

References

• Brachaniec T., 2020a, Moldavite finds in middle miocene (Langhian stage) deposits of southwestern Poland, Carnets de Geologie, 20(12), s. 241–247.
• Brachaniec T., 2020b, A scheme for moldavite fluvial abrasion based on observations from a natural river stream, Meteoritics and Planetary Science, 55(10), s. 2171–2183.
• Brachaniec T., Szopa K., Karwowski Ł., 2012, Pierwsze znalezisko polskich mołdawitów, Acta Societatis Meteoriticae Polonorum, 4, s. 37–38.
• Brachaniec T., Szopa K., Karwowski, Ł., 2014, Discovery of the most distal Ries tektites found in Lower Silesia, southwestern Poland, Meteoritics and Planetary Science, 49, s. 1315–1322.
• Brachaniec T., Szopa K., Karwowski, Ł., 2015, A new discovery of parautochthonous moldavites in southwestern Poland, Central Europe, Meteoritics and Planetary Science, 50, s. 1697–1702.
• Brachaniec T., Szopa K., Karwowski Ł., 2016, New moldavites from SW Poland, Acta Geologica Polonica, 66, p. 99–105.
• Stöffler D., Artemieva N.A., Pierazzo E., 2002, Modeling the Ries-Steinheim impact event and the formation of the moldavite strewn field, Meteoritics and Planetary Science, 37, s. 1893–1907.
• Szopa K., Badura J., Brachaniec T., Chew D., Karwowski Ł., 2017, Origin of parautochthonous Polish moldavites – a paleogeographical and petrographical study, Annales Societatis Geologorum Poloniae, 87(1), s. 1–12.
• Szopa K., Brachaniec T., Karwowski Ł., 2017, Polish moldavites – the current state of knowledge and perspectives of new finds, Przegląd Geologiczny, 67, s. 662–667.
• Szopa K., 2018, Kolejne znaleziska mołdawitów w Polsce, Acta Societatis Meteoriticae Polonorum, 9, s. 123–125.

• Document Type: article