BarnesSJ, MungallJE, MaierWD.2015. Platinum group elements in mantle melts and mantle samples.Lithos. 232:395–417. doi: 10.1016/j.lithos.2015.07.007
2.
LenhardtN, ErikssonPG.2012. Volcanism of the Palaeoproterozoic Bushveld Large Igneous Province: the Rooiberg Group, Kaapvaal Craton, South Africa.Precambrian Res. 214–215:82–94. doi: 10.1016/j.precamres.2011.12.003
3.
MaierWD.2005. Platinum-group element (PGE) deposits and occurrences: mineralization styles, genetic concepts, and exploration criteria.J Afr Earth Sci. 41:165–191. doi: 10.1016/j.jafrearsci.2005.03.004