oa Madoqua - Late Cenozoic fluvial deposits of the Tsondab Valley, central Namib Desert
Fluvial deposits, which include calcreted conglomerates, gravels, sands and silts are found up to 50 km west of the present end point or the Tsondab River. They provide evidence for periods of variably increased fluvial activity in the area during the late Cenozoic. Paleoclimatic interpretations of the deposits are difficult, but all were apparently laid down in arid or semi-arid environments. This suggests that although there have been fluctuations in rainfall and run-off in the Tsondab Valley and its headwaters, they have mostly been of limited exlent.
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