Acta Musei Moraviae

Development of the River Net in the Moravian Karst

The levels of the paleo-valley bottoms were recognised on the basis of cross-sections of valleys in the whole Moravian Karst and adjacent areas. The six main valley bottoms were correlated from the area near Brno up to the drainage area above the Moravian Karst. Two of them – middle level III and low level IV – were active for a very long time. All valley levels were created until Badenian transgression, but many of them were rejuvenated in Pliocene and Pleistocene when all valleys in Moravian Karst were filled by fluvial sediments up to the high level II many times.