Basaltic dykes in the granodiorite of Lipová in the Šluknov area (N-Bohemia) - Tertiary or Cadomian?

 

Ferry Fediuk, Mojmír Opletal, Ivan Vavřín

Geoscience Research Reports 34, 2001 (GRR for 2000), pages 100–102
Map sheets: Varnsdorf (02-22)

Full text (PDF, 0.13 MB)

 

Abstract

Dark, grey-black and dense dykes piercing the granodiorite of the Lusatian Pluton in the quarry at the Lipová village near the Czech-German state border have been hitherto considered as a member of the North-Bohemian Cenozoic akaline on the contrary by all geologists and stone-industry people as well. However, new petrographic and geochemical data discredit this conception. They offer proof that these dykes have nothing common with the Tertiary volcanics and contradictory that they are subsrantially older and belong to the Cadomian calc alkaline dyke conduit of the granitoid Lusatian Pluton. Nevertheless, this statement does not contradict the higher geotechnical quality of the paving stone produced from this basaltic rock.