40Ar/39Ar constraints on the timing and origin of Miocene leucitite volcanism in southeastern Australia

@article{Cohen200840Ar39ArCO,
  title={40Ar/39Ar constraints on the timing and origin of Miocene leucitite volcanism in southeastern Australia},
  author={B. E. Cohen and K. Knesel and P. Vasconcelos and D. Thiede and J. Hergt},
  journal={Australian Journal of Earth Sciences},
  year={2008},
  volume={55},
  pages={407 - 418}
}
  • B. E. Cohen, K. Knesel, +2 authors J. Hergt
  • Published 2008
  • Geology
  • Australian Journal of Earth Sciences
  • Laser incremental-heating 40Ar/39Ar geochronology of seven leucitites from southeastern Australia indicates that leucite-bearing lavas in individual geographic clusters were erupted in one million years or less. The eruption ages range from 17.9 ± 0.3 Ma (2σ) at El Capitan in northern-central New South Wales to 8.9 ± 0.2 Ma (2σ) at Cosgrove in northern Victoria. The 40Ar/39Ar results demonstrate that the southward migration of leucite-bearing lavas was near-contemporaneous with age-progressive… CONTINUE READING
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