Carboniferous to Permian basins reflected compression regime of the Variscan orogeny during the continent-continent collision in final stages. The fragments of these microplates are preserved in the Alpine Western Carpathians basement (CWCZ, NGZ vers. IWCZ). On the basis of sedimentary sequence analysis two zones of continental collision differing in time were established: (1) internal with termination of collision during Bretonian (pre-Sudetian) events, resulting in the syn-collision Tournaisian-Visean flysch; (2) external with termination of collision during pre-Asturian events, comprising the Bashkirian, and in the innermost part of the Western Carpathians (Bükk Mountains in the northern part of Hungary) partly even the Early Moscovian flysch sequences.
Peri-Tethys, Western Carpathians, Late Variscan orogeny, Carboniferous-Permian, syn- and post-orogenic basins, collision events