Dodging snowballs: Geochronology of the Gaskiers glaciation and the first appearance of the Ediacaran biota

@article{Pu2016DodgingSG,
  title={Dodging snowballs: Geochronology of the Gaskiers glaciation and the first appearance of the Ediacaran biota},
  author={J. Pu and S. Bowring and J. Ramezani and P. Myrow and T. Raub and E. Landing and Andrea Mills and E. B. Hodgin and F. Macdonald},
  journal={Geology},
  year={2016},
  volume={44},
  pages={955-958}
}
The snowball Earth hypothesis predicts that low-latitude glaciation lasted millions of years while CO2 built up to critical levels to culminate in catastrophic deglaciation in a supergreenhouse climate. The Gaskiers Formation of eastern Newfoundland (Canada) has been attributed to a snowball glaciation event, but the lack of robust paleomagnetic data and precise geochronological constraints has precluded tests of the hypothesis. Here we present high-precision U-Pb zircon geochronology (chemical… Expand
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