Geomorphologie der küstennahen zentralen Namib, Südwestafrika

Abstract

English summary by authors:

The town of Swakopmund is situated on a delta of the Swakop river from stage g, which has been explained until now as a marine eustatic terrace

The elaboration of the sequence of climatic geomorphic stages at several sites enabled us to explain the actual pattern of relief types as the result of spatial and temporal changes of the geomorphic environments

Connecting the sequences of sea level changes and of climatic geomorphic stages we discovered the coincidence between high stands of the sea level and arid stable or arid active geomorphic environment and between low stands of the sea level and humid active geomorphic environment. This coincidence is contradictory e. g. to the well-known relations between sea level changes and changes of "climate" in the western Sahara. Connecting these two sequences we found furthermore that at several sites the marine eustatic stages of transgression, high stand, and regression correspond to only one climatic geomorphic stage, and that lower Swakop river was tsondabized partially two times with the beginning of the regressions

Finally we were able to interprete the spatial and temporal differentiation of coastal relief types as the result of in mode and intensity always comparable marine litoral processes acting at different altitudes on a different terrestrial relief. Such the different types of coastal relief correspond to the different types of terrestrial relief: the breaker zone bar coast to the tumasic relief, the river mouth coast to the gramadulla relief, and the dune cliff and spit coast to the relief of tsondabization