Vltavín ze štěrkové terasy řeky Dyje u Oblekovic (Znojemská podoblast)Článek v PDF
Moldavite from the gravel terrace the Dyje river near Oblekovice (Znojmo subregion)
In the summer of 2020, a small moldavite 22 × 15 × 12 mm in size and weight 3,699 g was found in the sand pit near Oblekovice (Znojmo, Southern Moravia). This finding deserves attention due to the fact that it was obtained from gravel accumulations (Pleistocene) on the right bank of the river Dyje and it is the second finding in a such position within the Znojmo moldavite subregion. It supports the idea of a significantly larger extent of the original strewn-field and number of moldavites after the impact event. Searching for new moldavite localities along the contact of the Carpathian Foredeep sediments with the pre-Miocene crystalline rocks of the Bohemian Massif and especially with the Waldviertel, is promising. Apart from slope movements, surface drainage has played an extremely important role in their secondary distribution since the end of the Tertiary. Any similar occurrence of moldavite is therefore important for studying the origin and development of the river network, fluvial deposits and landscape development.
Jaroslav Šmerda, Krapkova 12, 671 81 Znojmo, Czech Republic, e-mail: email@example.com