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Metamorphic experiments on solid—solid reactions

  • John R. Holloway
  • Bernard J. Wood

Abstract

Many metamorphic rocks crystallize or recrystallize under conditions which generate an essentially volatile-free mineral assemblage. As examples, one might consider rocks of the granulite facies which typically produce orthopyroxene—clinopyroxene—plagioclase ± garnet ± quartz assemblages in mafic compositions and quartz—plagioclase—alkali feldspar—sillimanite —garnet ± cordierite assemblages in pelitic compositions. Of even wider distribution than granulites are the recrystallized rocks of the upper mantle which are found as xenoliths in mantle-derived volcanics. Peridotites and eclogites are the commonest of such volatile-free xenoliths.

Keywords

Excess Free Energy Calorimetric Data Excess Enthalpy Phase Equilibrium Data Lead Silicate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© John R. Holloway & Bernard J. Wood 1988

Authors and Affiliations

  • John R. Holloway
    • 1
  • Bernard J. Wood
    • 2
  1. 1.Arizona State UniversityUSA
  2. 2.Northwestern UniversityUSA

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