Abstract
Natural climatic and tectonic factors had a strong impact on the Mz-Kz development of fluvial relief of the region. During the dry seasons the chemical and physical weathering, different types of denudation, gravitational and aeolean processes are predominant, while fluvial processes play subsidiary role. Phased uprise of the Large Escarpment along the periphery of Southern Africa coming along with its axis displacement into the interior of the continent caused the formation of the deep incisions in the river valleys and strong erosion dissection of the neighbouring parts of the planation surface. The faults of the ancient and recent rifts have a significant impact on the morphology of the fluvial relief.
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