A model for low‐pressure facies metamorphism during crustal thickening

R. J. H. Loosveld, M. A. Etheridge

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136 Citations (Scopus)


Low‐pressure metamorphic facies (i.e. high T/P ratios) are widespread in a wide range of tectonic settings. Explanations offered for the occurrence of these facies include extensional and/or magmatic models. However, these fail to explain that the low‐P facies metamorphism is commonly coeval with a phase of pervasive crustal thickening, with T/P ratios increasing during, or slightly lagging behind, the thickening. We propose an alternative explanation based on the approximate synchroneity of crustal thickening and erosion (thinning) of the mantle lithosphere.

Original languageEnglish
Pages (from-to)257-267
Number of pages11
JournalJournal of Metamorphic Geology
Issue number3
Publication statusPublished - 1990
Externally publishedYes


  • crustal thickening
  • extensional models
  • lithospheric thinning
  • low‐P facies metamorphism
  • regional metamorphism


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