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Evidence for deep mantle circulation from global tomography

Author

Listed:
  • R. D. van der Hilst

    (Atmospheric, and Planetary Sciences)

  • S. Widiyantoro

    (Research School of Earth Sciences)

  • E. R. Engdahl

    (US Geological Survey, DFC)

Abstract

Seismic tomography based on P-wave travel times and improved earthquake locations provides further evidence for mantle-wide convective flow. The use of body waves makes it possible to resolve long, narrow structures in the lower mantle some of which can be followed to sites of present-day plate convergence at the Earth's surface. The transition from subduction-related linear structures in the mid-mantle to long-wavelength heterogeneity near the core-mantle boundary remains enigmatic, but at least some slab segments seem to sink to the bottom of the mantle.

Suggested Citation

  • R. D. van der Hilst & S. Widiyantoro & E. R. Engdahl, 1997. "Evidence for deep mantle circulation from global tomography," Nature, Nature, vol. 386(6625), pages 578-584, April.
    • Handle: RePEc:nat:nature:v:386:y:1997:i:6625:d:10.1038_386578a0
    DOI: 10.1038/386578a0
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    Cited by:

    1. Grace E. Shephard & Christine Houser & John W. Hernlund & Juan J. Valencia-Cardona & Reidar G. Trønnes & Renata M. Wentzcovitch, 2021. "Seismological expression of the iron spin crossover in ferropericlase in the Earth’s lower mantle," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    2. Yunguo Li & Lidunka Vočadlo & Chris Ballentine & John P. Brodholt, 2022. "Primitive noble gases sampled from ocean island basalts cannot be from the Earth’s core," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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