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The oxidation state of the mantle and the extraction of carbon from Earth’s interior

Author

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  • Vincenzo Stagno

    (Bayerisches Geoinstitut, University of Bayreuth
    Present address: Geophysical Laboratory, Carnegie Institution of Washington, Washington DC 20015, USA.)

  • Dickson O. Ojwang

    (Bayerisches Geoinstitut, University of Bayreuth)

  • Catherine A. McCammon

    (Bayerisches Geoinstitut, University of Bayreuth)

  • Daniel J. Frost

    (Bayerisches Geoinstitut, University of Bayreuth)

Abstract

The oxygen fugacity of the deepest rock samples from Earth’s mantle is found to be more oxidized than previously thought, with the result that carbon in the asthenospheric mantle will be hosted as graphite or diamond but will be oxidized to produce carbonate melt through the reduction of Fe3+ in silicate minerals during upwelling.

Suggested Citation

  • Vincenzo Stagno & Dickson O. Ojwang & Catherine A. McCammon & Daniel J. Frost, 2013. "The oxidation state of the mantle and the extraction of carbon from Earth’s interior," Nature, Nature, vol. 493(7430), pages 84-88, January.
    • Handle: RePEc:nat:nature:v:493:y:2013:i:7430:d:10.1038_nature11679
    DOI: 10.1038/nature11679
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    Cited by:

    1. Chunfei Chen & Stephen F. Foley & Svyatoslav S. Shcheka & Yongsheng Liu, 2024. "Copper isotopes track the Neoproterozoic oxidation of cratonic mantle roots," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Fangyi Zhang & Vincenzo Stagno & Lipeng Zhang & Chen Chen & Haiyang Liu & Congying Li & Weidong Sun, 2024. "The constant oxidation state of Earth’s mantle since the Hadean," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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