Journal of


  (Formerly Journal of the Czech Geological Society)

Original Paper

Jaromír Leichmann, Kapinus, Pivnička, Weber

Želetice Group: Very low-grade Palaeozoic sequence at the base of Moravicum, Czech Republic

Journal of the Czech Geological Society, volume 51 (2006), issue 3-4, 189 - 199


  Abstract References

We define a new very low-grade metamorphic unit - Želetice Group - that crops out in the northern termination of the Moravian Dyje window and in the central part of the Svratka window in the hanging wall of the Devonian Lažánky-Heroltice limestones and below the biotite-bearing phylites of the Pemegg-Upper Lukov-Bílý Potok Groups. A part of the Želetice Group in the Dyje window was earlier called Porphyroid Group (Preclik 1926b). The newly defined unit consists of greywackes, slates, metatuffites and sericite-chlorite-bearing marbles. This unit was so far considered as a lower part of the Pemegg-Upper Lukov-Bílý Potok Groups. However, Želetice Group differs from the overlying complexes by different lithology and considerably lower metamorphic overprinting. Pebbles of Devonian Lažánky-Heroltice limestones found in the metagreywackes define the lower age limit as Devonian. The age of cooling of the whole Moravian nappe pile c. 330-325 Ma ago (Dallmeyer et al. 1994) implies the minimum age of this Group. Our data indicate that an important Palaeozoic sequence overlays the Brunovistulian basement, apart of well-known Devonian limestones and siliciclastics, prior its collision with the Moravicum and Moldanubicum.

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ISSN: 1802-6222

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