An isotopic study on the volcanics of the Rooiberg Group: age implications and a potential exploration tool

@article{Harmer1995AnIS,
  title={An isotopic study on the volcanics of the Rooiberg Group: age implications and a potential exploration tool},
  author={R. E. Harmer and Douglas Farrow},
  journal={Mineralium Deposita},
  year={1995},
  volume={30},
  pages={188-195}
}
Many geochronological studies on silicic magmatic rocks associated with the Bushveld Complex (rhyolitic lavas of the Rooiberg Group and granites of the Lebowa Granite Suite) have shown evidence of open-system behaviour of the Rb-Sr and Pb-Pb isotopic systems until 1600–1000 Ma, many hundreds of million years after crystallisation of these rocks. This pervasive open-system behaviour has been attributed to sustained hydrothermal circulation driven by the high heat productivity of the Bushveld… CONTINUE READING