@article{Skinner_Viljoen_Clark_Smith_1991, title={The Petrography, Tectonic Setting and Emplacement Ages of Kimberlites in the South Western Border Region of the Kaapvaal Craton, Prieska Area, RSA}, volume={5}, url={https://ikcabstracts.com/index.php/ikc/article/view/2574}, DOI={10.29173/ikc2574}, journal={International Kimberlite Conference: Extended Abstracts}, author={Skinner, E.M.W. and Viljoen, K.S. and Clark, T.C. and Smith, C.B.}, year={1991}, month={Feb.}, pages={373–375} }