[en] Palaeomagnetic analysis of 80 samples from 13 sites in the Richtersveld Subprovince together with ⁴⁰Ar/³⁹Ar measurements were done on selected samples. A brief description of the demagnetization behaviour of the samples of various rock types were given. Because of its stable univectorial palaemagnetic properties, the presence of the mineral species necessary for ⁴⁰Ar/³⁹Ar dating, and because it was the least altered rock unit, some of the Vioolsdrif diorite localities were selected for Ar⁴⁰/Ar³⁹ analyses. With regard to two different models concerning the emplacement history of the Vioolsdrif suite, and the Ar⁴⁰/Ar³⁹ data that is presented here, two possible thermal histories for the Vioolsdrif Suite have been outlined