Współczesne obszary występowania mołdawitów : wnioski z eksperymentu transportowania ich przez Nysę Łużycką

• Autorzy: Brachaniec Tomasz

Identyfikatory

DOI

10.7306/2022.4

Warianty tytułu

EN

Modern areas of occurrence of moldavites : conclusions from their experimental transport across the Lusatian Neisse

• Języki publikacji: PL

Abstrakty

EN

Tektites in the sedimentary recordare subject to many geological processes such as fluvial reworking. To observe the glass behaviour during reworking, an experiment was conducted in the Lusatia Neisse river where moldavites are found. It consisted in observing the progressive abrasion of some 500 tektites over reworking distances of 100, 200, 300, and 400 km respectively. The results clearly show that moldavites could survive reworkingover a distance of several hundreds km. The decrease in weight was linear in relation to the distance travelled. Regardless of the initial shape, all tektites became rounded with a smooth surface after travelling 200 km. The experimental results suggest that European tektites were ejected from the Ries crater over distances reaching up to 600 km and were then reworked over short distances from the origin areas of the current substrewn fields.

Słowa kluczowe

PL

tektyty; mołdawit; ponowna obróbka; abrazja; ponowne osadzanie; obszar

EN

tektite; moldavite; reworking; abrasion; redeposition; strewn field

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Przegląd Geologiczny
• Rocznik: 2022
• Tom: Vol. 70, nr 1
• Strony: 61--65
• Opis fizyczny: Bibliogr. 26 poz., fot., map., rys., wykr.

Twórcy

autor

Brachaniec Tomasz

• Wydział Nauk Przyrodniczych, Uniwersytet Śląski, ul. Będzińska 60, 41-200 Sosnowiec

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).