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Updated: Jan 12, 2026

Adult Mouse Digit Amputation and Regeneration: A Simple Model to Investigate Mammalian Blastema Formation and Intramembranous Ossification
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Basal mantle structure regenerated through supercontinents.

Peng Peng1,2, Ross N Mitchell3,4, Nan Zhang5

  • 1China-South America Joint Research Center, State Key Laboratory of Lithospheric and Environmental Coevolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China. pengpengwj@mail.iggcas.ac.cn.

Nature Communications
|November 3, 2025
PubMed
Summary
This summary is machine-generated.

Large Igneous Provinces (LIPs) linked to mantle plumes suggest ancient Large Low Shear-Wave Velocity Provinces (LLSVPs) existed during the Rodinia supercontinent. These structures show signs of regeneration and migration between supercontinental cycles.

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Area of Science:

  • Geophysics
  • Geochemistry
  • Plate Tectonics

Background:

  • Large Low Shear-Wave Velocity Provinces (LLSVPs) in Earth's mantle are linked to Large Igneous Provinces (LIPs) during supercontinent breakup.
  • The presence and behavior of mantle structures like LLSVPs during earlier supercontinents, such as Rodinia, remain largely unknown.

Purpose of the Study:

  • To investigate the existence and characteristics of basal mantle structures during the Rodinia supercontinent.
  • To analyze the relationship between LIPs and potential LLSVP activity during Rodinia's history.

Main Methods:

  • Analysis of geological samples from China and Brazil.
  • Integration of existing literature data on LIPs.
  • Multi-proxy reconstruction of paleogeographic and mantle plume activity.

Main Results:

  • Identification of seven LIPs associated with the Rodinia supercontinent (940-720 million years ago).
  • Reconstruction reveals a ring of LIPs suggesting an ancient LLSVP with advecting plumes.
  • Nd isotope data indicate oceanic lithosphere recycling and evolving LIP sources.

Conclusions:

  • Evidence supports the existence of an ancient LLSVP during the Rodinia supercontinent, influencing LIP formation.
  • LLSVPs exhibit patterns of regeneration, replenishment, and migration between supercontinental cycles.
  • The study highlights similarities and differences in plume advection and paleogeography between Rodinian and Pangean LLSVP activity.