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Basal mantle structure regenerated through supercontinents

Author

Listed:
  • Peng Peng

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Ross N. Mitchell

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Nan Zhang

    (Peking University)

  • Xiangdong Su

    (Yangtze University)

  • Yang Li

    (Chinese Academy of Sciences)

  • Fengbo Sun

    (Henan Polytechnic University)

  • Chong Wang

    (Chinese Academy of Sciences)

  • Jinghui Guo

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Mingguo Zhai

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

The African large low shearwave-velocity province (LLSVP) advected plumes manifest as large igneous provinces (LIPs) during Pangea breakup. The existence of such basal mantle structures during earlier supercontinents is unknown. Here we analyze samples from China and Brazil to demonstrate with literature data a series of seven LIPs of supercontinent Rodinia from 940–720 million years ago. Multi-proxy reconstruction results in a coherent ring of LIPs comparable with the size of Rodinia that resembles the product of an ancient LLSVP whose edges advected LIP-producing plumes. Oceanic lithosphere recycling following supercontinental assembly is evident in Nd isotopes as evolving LIP-sources. There is a same secular variational pattern of LIP sources with a replenished depleted component advected by plumes as well as a similar manner yet contrasting paleogeographic configurations corresponding to supercontinental breakup between Rodinian and Pangean LLSVPs. This evolving pattern of LLSVPs suggests their partial regeneration (replenishment and migration) between supercontinents.

Suggested Citation

  • Peng Peng & Ross N. Mitchell & Nan Zhang & Xiangdong Su & Yang Li & Fengbo Sun & Chong Wang & Jinghui Guo & Mingguo Zhai, 2025. "Basal mantle structure regenerated through supercontinents," Nature Communications, Nature, vol. 16(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-64657-8
    DOI: 10.1038/s41467-025-64657-8
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    References listed on IDEAS

    as
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    2. Nicolas Flament & Ömer F. Bodur & Simon E. Williams & Andrew S. Merdith, 2022. "Assembly of the basal mantle structure beneath Africa," Nature, Nature, vol. 603(7903), pages 846-851, March.
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    4. Nicolas Flament & Ömer F. Bodur & Simon E. Williams & Andrew S. Merdith, 2022. "Author Correction: Assembly of the basal mantle structure beneath Africa," Nature, Nature, vol. 606(7914), pages 4-4, June.
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