The Barrande´s Rock – a product of orogeny or submarine slide?

 

Pavel Röhlich

Geoscience Research Reports 41, 2008 (GRR for 2007), pages 41–44
Map sheets: Zbraslav (12-42)

Full text (PDF, 1.09 MB)

 

Abstract

The Barrande's Rock in Prague Hlubocepy, a spectacular outcrop of disharmonically folded Lower Devonian limestones (Lochkov Formation), has been traditionally attributed to the Variscan orogeny. The author points up the inconsistences of this concept and proposes an alternative interpretation. Slump structures on a minor scale, described within the Lochkov Formation elsewhere, testify to occasional unstability of the sea bottom. The intricate folding on the Barrande's Rock may be the result of a coherent submarine slide encompassing the whole Formation (about 50 m thick). A tentative reconstruction of the slide in its final stage is presented by means of a block diagram.