Authors: Phillips, D Kiviets, GB Biddulph, MG Madav, MK

Citation: D. Phillips et al., Cenozoic volcanism, OX MG GEOL, (40), 2000, pp. 182-197

Authors: van Niekerk, HS Gutzmer, J Beukes, NJ Phillips, D Kiviets, GB

Citation: Hs. Van Niekerk et al., An Ar-40/Ar-39 age of supergene K-Mn oxyhydroxides in a post-Gondwana soilprofile an the Highveld of South Africa, S AFR J SCI, 95(10), 1999, pp. 450-454

Authors: Phillips, D Machin, KJ Kiviets, GB Fourie, LF Roberts, MA Skinner, EMW

Citation: D. Phillips et al., A petrographic and Ar-40/Ar-39 geochronological study of the Voorspoed kimberlite, South Africa: Implications for the origin of Group II kimberlite magmatism, S AFR J GEO, 101(4), 1998, pp. 299-306