• Geology
• Published 1995
• DOI:10.1007/bf00189348

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}
}

• R. E. Harmer, Douglas Farrow

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

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