DEFORMATION SEQUENCE IN THE ORAVSKA LESNA AREA, FLYSCH BELT OF THE WESTERN CARPATHIANS

Year, pages: 1994, 185 - 191

Palaeogene flysch deposits of the Oravska Lesna area, portion of the proximal zone of the Magura accretionary wedge formed in front of the West Carpathians, indicates the NW-SE shortening as the oldest tectonic event. This shortening of the Palaeocene–Late Badenian age, is responsible for the most dominant currently present structures of this area including: NE-SW striking folds and thrust planes, steep to overturned bedding planes of the same strike, slump bodies, and W-E and N-S striking strike-slip faults which accommodated inhomogeneous thrusting as lateral ramps. Younger tectonic event, N-S shortening of the Late Badenian age, reactivated pre-existing fault plane pattern, including the continuation of the roughly N-S striking Zazriva sigmoide-large strike-slip fault zone which started to act as the dextral strike-slip fault for the first time. Pre-existing NE-SW striking dip-slip reverse faults were reactivated as oblique-slip reverse faults. The youngest, the Late Badenian–Late Sarmatian tectonic event, controlled by the stress field with the NE-SW oriented maximum principal stress axis, reactivated original reverse fault pattern as strike- and/or oblique-slip faults. This faulting accommodated the NE-ward lateral motion of the rock mass which occurs in outcrops of the Oravska Lesna area.

Nemcok, M. 1994. DEFORMATION SEQUENCE IN THE ORAVSKA LESNA AREA, FLYSCH BELT OF THE WESTERN CARPATHIANS. In Geologica Carpathica, vol. 45, no.3, pp. 185-191. 1335-0552.

Nemcok, M. (1994). DEFORMATION SEQUENCE IN THE ORAVSKA LESNA AREA, FLYSCH BELT OF THE WESTERN CARPATHIANS. Geologica Carpathica, 45(3), 185-191. 1335-0552.