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Slab control on the mega-sized North Pacific ultra-low velocity zone

Author

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  • Jiewen Li

    (University of Science and Technology of China
    CAS Center for Excellence in Comparative Planetology, China)

  • Daoyuan Sun

    (University of Science and Technology of China
    CAS Center for Excellence in Comparative Planetology, China)

  • Dan J. Bower

    (University of Bern)

Abstract

Ultra-low velocity zones (ULVZs) are localized small-scale patches with extreme physical properties at the core-mantle boundary that often gather at the margins of Large Low Velocity Provinces (LLVPs). Recent studies have discovered several mega-sized ULVZs with a lateral dimension of ~900 km. However, the detailed structures and physical properties of these ULVZs and their relationship to LLVP edges are not well constrained and their formation mechanisms are poorly understood. Here, we break the degeneracy between the size and velocity perturbation of a ULVZ using two orthogonal seismic ray paths, and thereby discover a mega-sized ULVZ at the northern edge of the Pacific LLVP. The ULVZ is almost double the size of a previously imaged ULVZ in this region, but with half of the shear velocity reduction. This mega-sized ULVZ has accumulated due to stable mantle flow converging at the LLVP edge driven by slab-debris in the lower mantle. Such flow also develops the subvertical north-tilting edge of the Pacific LLVP.

Suggested Citation

  • Jiewen Li & Daoyuan Sun & Dan J. Bower, 2022. "Slab control on the mega-sized North Pacific ultra-low velocity zone," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-28708-8
    DOI: 10.1038/s41467-022-28708-8
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    References listed on IDEAS

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    1. Scott W. French & Barbara Romanowicz, 2015. "Broad plumes rooted at the base of the Earth's mantle beneath major hotspots," Nature, Nature, vol. 525(7567), pages 95-99, September.
    2. A. W. Hofmann, 1997. "Mantle geochemistry: the message from oceanic volcanism," Nature, Nature, vol. 385(6613), pages 219-229, January.
    3. David P. Dobson & John P. Brodholt, 2005. "Subducted banded iron formations as a source of ultralow-velocity zones at the core–mantle boundary," Nature, Nature, vol. 434(7031), pages 371-374, March.
    4. Rakib Hassan & R. Dietmar Müller & Michael Gurnis & Simon E. Williams & Nicolas Flament, 2016. "A rapid burst in hotspot motion through the interaction of tectonics and deep mantle flow," Nature, Nature, vol. 533(7602), pages 239-242, May.
    5. Trond H. Torsvik & Kevin Burke & Bernhard Steinberger & Susan J. Webb & Lewis D. Ashwal, 2010. "Diamonds sampled by plumes from the core–mantle boundary," Nature, Nature, vol. 466(7304), pages 352-355, July.
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