Robuta

https://wiredspace.wits.ac.za/items/621b7409-57d5-4729-9649-65afac5eda18 Geochemical modelling of the speciation, transport, dispersal and fate of metal contaminants in... Gold mining of the Witwatersrand Basin reefs has been responsible for the rise of Johannesburg as an economic centre of South Africa. While mining provided a... geochemical modellingof thespeciationtransportdispersal