Late Quaternary seismogenic faulting and evolution of fault-controlled sedimentary basins in the eastern Bohemian Massif

Late Quaternary seismogenic faulting and evolution of fault-controlled sedimentary basins in the eastern Bohemian Massif

Recent seismic monitoring in the eastern part of the Bohemian Massif points to the presence of a significant seismogenic zone in the right-hand shear regime, limited by a marginal Sudeten fault at the NE and conical-Nectavian faults at the SW. In this area, geomorphologically significant plio-Pleistocene faults are developed, as well as two “pull-apart” sedimentation basins - the Upper Moravian gorge (EMU) and the Mohelnice furrow (MB). Both basins have an extremely flat topography and are filled with powerful sequences of Pliocene to Holocene lake and fluvial sediments. A similar system of active sedimentation basins has no parallel in the Bohemian Massif and it seems that the development of these basins is directly related to plio-quaternary fracture activity and seismicity. In this project we will combine high-resolution stratigraphy and 3D modeling of the quaternary sediments of EMU and MB with paleoseismic analysis of morphogenic faults and analysis of data from seismic monitoring. The aim is to reconstruct subsidence velocities, fault geometry and paleontological fields in the context of the recent reaction of the Variscan forefield to late Alpine tectonics.

Grant No.

GAP210/12/0573

Grant Agency

Czech Science Foundation 

Resolved in

2012-2015

Principal investigator

Doc. Mgr. Ondřej Bábek, Dr., 
Palacký University in Olomouc, Faculty of Science

Co-investigators

RNDr. Petra Štěpančíková, Ph.D. 
Institute of Rock Structure and Mechanics of the CAS 
Mgr. Petr Špaček, Ph.D. 
Masaryk University in Brno, Faculty of Science, Department of Earth Physics 
RNDr. Petr Tábořík, PhD. 
Institute of Rock Structure and Mechanics of the CAS

State
Archived