• Petroduric and "petrosepiolitic" horizons in soils of Namaqualand, South Africa 

      Francis, Michele Louise; Fey, Martin V.; Ellis, Freddie; Poch, Rosa Maria (Universia, 2012)
      Indurated, light-coloured 'sepiocrete' horizons have been found in Namaqualand Calcisols and Durisols. These horizons resembled calcrete but were non- to only mildly calcareous, resisted slaking in acid and alkali, and ...
    • Soil Formation on the Namaqualand Coastal Plain 

      Francis, Michele Louise (Stellenbosch : University of Stellenbosch, 2008-03)
      The (semi-)arid Namaqualand region on the west coast of South Africa is wellknown for its spring flower displays. Due to the aridity of the region, soils research has lagged behind that of the more agriculturally productive ...