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Depth-dependent extension, two-stage breakup and cratonic underplating at rifted margins

Author

Listed:
  • Ritske Huismans

    (Bergen University)

  • Christopher Beaumont

    (Dalhousie University, Halifax)

Abstract

At the margins of continental rifting Huismans and Beaumont use dynamical models to demonstrate that typical continental margins such as the Iberia–Newfoundland conjugates and the central South Atlantic margins are opposite end members. In the first type, depth-dependent extension results in crustal necking and break-up before mantle lithosphere break-up, whereas in the latter type, the converse is true. These two-layer, two-stage break-up behaviours explain a number of discrepancies between observations and earlier models of continental breakup.

Suggested Citation

  • Ritske Huismans & Christopher Beaumont, 2011. "Depth-dependent extension, two-stage breakup and cratonic underplating at rifted margins," Nature, Nature, vol. 473(7345), pages 74-78, May.
    • Handle: RePEc:nat:nature:v:473:y:2011:i:7345:d:10.1038_nature09988
    DOI: 10.1038/nature09988
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    Cited by:

    1. Thomas Theunissen & Ritske S. Huismans, 2022. "Mantle exhumation at magma-poor rifted margins controlled by frictional shear zones," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    2. Alireza Bahadori & William E. Holt & Ran Feng & Jacqueline Austermann & Katharine M. Loughney & Tristan Salles & Louis Moresi & Romain Beucher & Neng Lu & Lucy M. Flesch & Christopher M. Calvelage & E, 2022. "Coupled influence of tectonics, climate, and surface processes on landscape evolution in southwestern North America," Nature Communications, Nature, vol. 13(1), pages 1-18, December.

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