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Deep origin and hot melting of an Archaean orogenic peridotite massif in Norway

Author

Listed:
  • Dirk Spengler

    (Universiteit Utrecht)

  • Herman L. M. van Roermund

    (Universiteit Utrecht)

  • Martyn R. Drury

    (Universiteit Utrecht)

  • Luisa Ottolini

    (Istituto di Geoscienze e Georisorse (IGG)-Sede di Pavia)

  • Paul R. D. Mason

    (Universiteit Utrecht)

  • Gareth R. Davies

    (Vrije Universiteit Amsterdam)

Abstract

Rock of ages Access to the deep Earth is not easy. But conveniently, a large fragment of the deep young Earth is available for study in Otrøy, western Norway. Kilometre-scale outcrops there derive from extreme depths of greater than 400 km. This cannot be explained by surface tectonics alone. The mantle rocks must have been exhumed in stages. First, mantle rock melting occured during upwelling from a depth of at least 350 km to 120 km. Then, after a pause of a billion years or so, a final tectonic skip and jump took it to the surface.

Suggested Citation

  • Dirk Spengler & Herman L. M. van Roermund & Martyn R. Drury & Luisa Ottolini & Paul R. D. Mason & Gareth R. Davies, 2006. "Deep origin and hot melting of an Archaean orogenic peridotite massif in Norway," Nature, Nature, vol. 440(7086), pages 913-917, April.
    • Handle: RePEc:nat:nature:v:440:y:2006:i:7086:d:10.1038_nature04644
    DOI: 10.1038/nature04644
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