The Barrovian-Type Facies Series

  • Helmut G. F. Winkler


The greenschist facies of the Barrovian type represents—as in general in the dynamothermal metamorphism—the lower temperature. It can easily be distinguished from the higher temperature almandine-amphibolite facies when the following critical minerals, characteristic solely of the greenschist facies, are present: chlorite,1 stilpnomelane, pyrophyllite, chloritoid. Zoisite or epidote is not restricted to the greenschist facies; however, the assemblage zoisite/epidote + albite does characterize it. Mostly, the anorthite content of the albite ranges up to 7%, more basic plagioclase being unstable in the Barroviantype greenschist facies.


Metamorphic Rock Mineral Assemblage Greenschist Facies Amphibolite Facies Gabbroic Rock 
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© Springer-Verlag New York Inc. 1967

Authors and Affiliations

  • Helmut G. F. Winkler
    • 1
  1. 1.Department of Mineralogy and PetrologyUniversity of GöttingenGermany

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