GYPWORLD Africa: Setting an agenda for gypsum ecosystem research in southern Africa

Résumé fourni par la source

Priority research required to bolster gypsum ecology research in southern Africa Gypsum characterisationGypsum is a soft sulfate mineral (CaSO 4 •2H 2 O) that forms deposits along the coast from southern Angola to South Africa and into the interior of South Africa (Figure 1).In some areas of the Namib Desert, pure gypsic deposits of up to 4 m deep and extending up to 100 km inland have been reported.1 Detailed geological maps for gypsiferous deposits in southern Africa are not readily available 2 , thus characterisation of gypsum distribution, depth of the soil profile, and gypsum content (%), is a crucial first step to study the region's gypsum ecosystems.

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