oa Madoqua - History of sediments at Khommabes, central Namib Desert
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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