Calibrating the Cryogenian.

  title={Calibrating the Cryogenian.},
  author={Francis A Macdonald and Mark D. Schmitz and James L. Crowley and Charles F Roots and D. S. Jones and Adam C Maloof and Justin V Strauss and Phoebe A. Cohen and David T. Johnston and Daniel P. Schrag},
  volume={327 5970},
The Neoproterozoic was an era of great environmental and biological change, but a paucity of direct and precise age constraints on strata from this time has prevented the complete integration of these records. We present four high-precision U-Pb ages for Neoproterozoic rocks in northwestern Canada that constrain large perturbations in the carbon cycle, a major diversification and depletion in the microfossil record, and the onset of the Sturtian glaciation. A volcanic tuff interbedded with… CONTINUE READING
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Palaeogeogr. Palaeoclimatol. Palaeoecol

  • P F Hoffman, Z.-X Li
  • Palaeogeogr. Palaeoclimatol. Palaeoecol
  • 2009

Precambrian Res

  • B Xu
  • Precambrian Res
  • 2009

Terra Nova

  • S Zhang, G Jiang, Y Han
  • Terra Nova
  • 2008

Am. J. Sci

  • S A Bowring
  • Am. J. Sci
  • 2007

Geochim. Cosmochim. Acta

  • B Schoene, J C Crowley, D J Condon, M D Schmitz, S A Bowring
  • Geochim. Cosmochim. Acta
  • 2006

Philos. Trans. R. Soc. Lond. Sec. B Biol. Sci

  • A H Knoll, E J Javaux, D Hewitt, P A Cohen
  • Philos. Trans. R. Soc. Lond. Sec. B Biol. Sci
  • 2006


  • D J Condon
  • Science
  • 2005


  • C M Fanning, P K Link
  • Geology
  • 2004


  • Y Donnadieu, Y Goddéris, G Ramstein, A Nédélec, J Meert
  • Nature
  • 2004

Geol. Soc. Am. Bull

  • K Lund, J N Aleinikoff, K V Evans, C M Fanning
  • Geol. Soc. Am. Bull
  • 2003

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