Zircon ages and the distribution of Archaean and Proterozoic rocks in the Rauer Islands

@inproceedings{Kinny1993ZirconAA,
  title={Zircon ages and the distribution of Archaean and Proterozoic rocks in the Rauer Islands},
  author={Peter D. Kinny and Lance P. Black and John W. Sheraton},
  year={1993}
}
The application of zircon U-Pb geochronology using the SHRIMP ion microprobe to the Precambrian high-grade metamorphic rocks of the Rauer Islands on the Prydz Bay coast of East Antarctica, has resulted in major revisions to the interpreted geological history. Large tracts of granitic orthogneisses, previously considered to be mostly Proterozoic in age, are shown here to be Archaean, with crystallization ages of 3270 Ma and 2800 Ma. These rocks and associated granulite-facies mafic rocks and… CONTINUE READING

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