https://ujcontent.uj.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Proterozoic mafic dykes and sills associated with BIF-hosted iron ore, South Africa : implications for the distribution of the Bushveld and Umkondo large igneous provinces https://ujcontent.uj.ac.za/vital/access/manager/Repository/uj:3761 Fri 15 Sep 2017 23:52:46 SAST ]]> Metasedimentary manganese ores of the Serra do Navio deposit, Amapa Province, Brazil https://ujcontent.uj.ac.za/vital/access/manager/Repository/uj:14828 Fri 15 Sep 2017 23:51:31 SAST ]]>