Very dominant is the intensive karstification, which is present throughout. The impact of earlier karstification (solutional erosion) has been eliminated by the last glacial period. The impact of earlier Karstification (solutional erosion) has been eliminated by the last glacial period. The rock karstification facilitates the formation of subterranean drainage. The caverns were formed by the karstification or dissolving of the limestone by water. Today the platform is exposed and under the influence of karstification. Tectonic and karstification processes led to the disintegration of this river. As precipitation and temperatures are high and vegetation is abundant karstification processes are evolved. The rock karstification facilitates the formation of sub-terrainean drainage. This area experienced two events of karstification which affected the Ordovician strata. Due to karstification, the depth of regolith is very uneven. Over time, karstification creates several ponors, where water leaves the basin through groundwater.