40Ar/39Ar constraints on the timing of Oligocene intraplate volcanism in southeast Queensland

@article{Cohen200740Ar39ArCO,
  title={40Ar/39Ar constraints on the timing of Oligocene intraplate volcanism in southeast Queensland},
  author={B. E. Cohen and P. Vasconcelos and K. Knesel},
  journal={Australian Journal of Earth Sciences},
  year={2007},
  volume={54},
  pages={105 - 125}
}
  • B. E. Cohen, P. Vasconcelos, K. Knesel
  • Published 2007
  • Geology
  • Australian Journal of Earth Sciences
    • Laser 40Ar/39Ar analyses were undertaken on Oligocene bimodal intraplate volcanic rocks from five volcanic areas spanning 320 km along a north-northeast-trending belt in southeast Queensland. Sixty-one mineral grains and groundmass fragments from 21 samples were analysed by incremental heating, while 99 mineral grains from 10 samples were analysed by total fusion. Fourteen samples are from localities dated previously by the K – Ar method. The 40Ar/39Ar ages are reproducible among different… CONTINUE READING
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