Metamorphism of Ultramafic Rocks

  • Kurt Bucher
  • Martin Frey


The Earth’s mantle consists predominantly of ultramafic rocks. The mantle is, with the exception of some small anomalous regions, in the solid state. The ultramafics undergo continuous recrystallization due to large-scale convection in sub-lithosphere mantle and tectonic processes in the lithosphere and any other processes causing pressure and temperature variations in a given volume of mantle rocks (magmatism, cooling and hydration). The majority of mantle rocks, therefore, qualify as metamorphic rocks. Metamorphic ultramafic rocks build up the largest volume of rocks on a global scale.


Ultramafic Rock Invariant Point Mantle Rock Contact Aureole Scandinavian Caledonides 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Kurt Bucher
    • 1
  • Martin Frey
    • 2
  1. 1.Mineralogisch-Petrographisches InstitutFreiburg im BreisgauGermany
  2. 2.Mineralogisch-Petrographisches InstitutBaselSwitzerland

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