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The terrestrial uranium isotope cycle

Author

Listed:
  • Morten B. Andersen

    (Bristol Isotope Group, School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK
    Institute of Geochemistry and Petrology, ETH Zürich, 8092 Zürich, Switzerland)

  • Tim Elliott

    (Bristol Isotope Group, School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK)

  • Heye Freymuth

    (Bristol Isotope Group, School of Earth Sciences, University of Bristol, Bristol BS8 1RJ, UK)

  • Kenneth W. W. Sims

    (University of Wyoming)

  • Yaoling Niu

    (Durham University, Durham DH1 3LE, UK)

  • Katherine A. Kelley

    (Graduate School of Oceanography, University of Rhode Island)

Abstract

Examination of the global uranium cycle — whereby uranium from the Earth’s crust is first transported to the oceans and then returned, by subduction, to the mantle — shows that the subducted uranium is isotopically distinct from the Earth as a whole and that this signature has been stirred throughout upper mantle, arguably within the past 600 million years.

Suggested Citation

  • Morten B. Andersen & Tim Elliott & Heye Freymuth & Kenneth W. W. Sims & Yaoling Niu & Katherine A. Kelley, 2015. "The terrestrial uranium isotope cycle," Nature, Nature, vol. 517(7534), pages 356-359, January.
    • Handle: RePEc:nat:nature:v:517:y:2015:i:7534:d:10.1038_nature14062
    DOI: 10.1038/nature14062
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