Nature Communications (Apr 2022)

Evidence for oxygen-conserving diamond formation in redox-buffered subducted oceanic crust sampled as eclogite

  • Sonja Aulbach,
  • Thomas Stachel

DOI
https://doi.org/10.1038/s41467-022-29567-z
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 13

Abstract

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Billions of years ago, pieces of subducted oceanic crust were trapped as eclogites in the mantle keels beneath continents. Comparing eclogitic minerals protected inside and evolving outside of ancient diamonds reveals no change in redox state.