Albite-epidote-amphibolite facies

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The set of metamorphic mineral assemblages (facies) in which basic rocks are represented by hornblende + albite + epidote. Equivalent to Eskola's epidote-amphibolite facies, it is of uncertain status, transitional between the greenschist facies and the amphibolite facies. It is generally believed to be favored by the higher pressures of regional metamorphism. AGI
Source: Dictionary of Mining, Mineral, and Related Terms

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