zeolite facies
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zeolite facies
[′zē·ə‚līt ′fā·shēz] (petrology)
Metamorphic rocks formed in the transitional period from diagenesis to metamorphism, at pressures of about 2000-3000 bars and temperatures of 200-300°C.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.