de Bruin, D., E. Barton, and A. Simoneti. “The Sr-Isotope Compositions of Clinopyroxene Megacrysts Determined by ICP-MS-LA from Localities across the Kaapvaal Craton through the Ages”. International Kimberlite Conference: Extended Abstracts 10 (February 6, 2012). Accessed June 20, 2021. https://ikcabstracts.com/index.php/ikc/article/view/3789.