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The Barrovian-Type Facies Series

  • Helmut G. F. Winkler

Abstract

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.

Keywords

Metamorphic Rock Mineral Assemblage Greenschist Facies Amphibolite Facies Gabbroic Rock 
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

© 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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