Nature Communications (Aug 2017)

Compositionally-distinct ultra-low velocity zones on Earth’s core-mantle boundary

  • Mingming Li,
  • Allen K. McNamara,
  • Edward J. Garnero,
  • Shule Yu

DOI
https://doi.org/10.1038/s41467-017-00219-x
Journal volume & issue
Vol. 8, no. 1
pp. 1 – 9

Abstract

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Ultralow velocity zones are detected on the core-mantle boundary, but their origin is enigmatic. Here, the authors find that the global distribution and large variations of morphology of ultralow velocity zones are consistent with most having a compositionally-distinct origin.