The main stages of the Late Quaternary evolution of the Kalahari region, Southern Africa in Palaeoecology of Africa and the surrounding islands. Volume 15. Southern African Society for Quaternary research. Proceedings.
A possible interpretation of paleoclimatic reconstructions for 18000 BP for the region 60 N to 60 S, 60 W to 100 E in Palaeoecology of Africa and the surrounding islands-Vol 13.
Dorbanks (duripans) are hardened subsurface horizons with reddish brown colours and variable thickness which occur widely in the arid and semi-arid regions of the Cape Province. Both silica and free iron oxides play a role in the cementation
regions are in equilibrium with present-day soil-forming factors but in some parts of the semi-arid regions (Southern and Eastern Cape) they could be paleosols.