oa Madoqua - History of sediments at Khommabes, central Namib Desert
|Article Title||History of sediments at Khommabes, central Namib Desert|
|© Publisher:||Namibian Ministry of Environment and Tourism|
|Affiliations||1 *Department of Earth Sciences, University of Manitoba, Winnipeg, Manitoba, Canada. **Department of Environmental and Geographical Science, University of Cape Town, Rondebosch|
|Publication Date||Jan 1986|
|Pages||409 - 420|
|Keyword(s)||Aeolian dunes, Precambrian bedrock, Bedrock weathering, Carbonate-cemented Karpfenkliff Conglomera, Deposition, Erosion, Kuiseb schist, Pedogenesis, Pleistocene hydraulic ponding, Precambrian Salem granite and Tsondab Sandstone Formation|
Sediments of the Khommabes depression provide evidence for a varied history of deposition and secondary alternation during the Quaternary. During a period or wetter dimate, fluvial sediments, probably deposited on a former flood-plain of the Kuiseb River, were cemented by calcite to form a calcrete. The lower part or this calcrete was later altered to dolomite. Subscquently, aeolian sand, possibly derived from the flood-plain, was deposited at the basin.
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