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metamorphic facies

Geology. a group of metamorphic rock units characterized by particular mineralogic associations. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for metamorphic facies
  • To a considerable extent, the metamorphic facies of rocks having amphibolite composition can be traced on magnetic maps.
  • We do not define the metamorphic facies, at this stage, because that would involve numerous debates on their boundaries.
  • metamorphic facies or grade as provided by the sample submitter.

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