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Ancient micrometeorites suggestive of an oxygen-rich Archaean upper atmosphere

Author

Listed:
  • Andrew G. Tomkins

    (School of Earth, Atmosphere and Environment, Monash University)

  • Lara Bowlt

    (School of Earth, Atmosphere and Environment, Monash University)

  • Matthew Genge

    (Impact and Astromaterials Research Centre, Imperial College London
    The Natural History Museum, Cromwell Road)

  • Sasha Wilson

    (School of Earth, Atmosphere and Environment, Monash University)

  • Helen E. A. Brand

    (Australian Synchrotron, 800 Blackburn Road)

  • Jeremy L. Wykes

    (School of Earth, Atmosphere and Environment, Monash University
    Australian Synchrotron, 800 Blackburn Road
    Macquarie University)

Abstract

Evidence in support of low atmospheric oxygen concentrations on early Earth relates to the composition of the lower Archaean atmosphere; now the composition of fossil micrometeorites preserved in 2.7-billion-year-old rocks in Australia suggests that they were oxidized in an oxygen-rich Archaean upper atmosphere.

Suggested Citation

  • Andrew G. Tomkins & Lara Bowlt & Matthew Genge & Sasha Wilson & Helen E. A. Brand & Jeremy L. Wykes, 2016. "Ancient micrometeorites suggestive of an oxygen-rich Archaean upper atmosphere," Nature, Nature, vol. 533(7602), pages 235-238, May.
    • Handle: RePEc:nat:nature:v:533:y:2016:i:7602:d:10.1038_nature17678
    DOI: 10.1038/nature17678
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