Luminescence-based dune chronologies in southern Africa: Analysis and interpretation of dune database records across the subcontinent

It is concluded that, even despite the number of dated dune records from southern Africa, there is a marked spatial unevenness within and between dunefields in the data available for assessing dune depositional ages and conditions. However, this is not a situation that can simply be improved upon by adding more and more ages to the full set of records. It is both necessary to appreciate the spatial differences in dune sensitivities to activation and relationships to potential changes in hydrological and other activity controls, and to establish better tools and approaches for analysing a rich but presently environmentally ambiguous record of dune accumulation.