Evolution of the granulites and sub-division of the granulite facies in Ceylon

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Abstract
Three subfacies of the granulite facies are recognized: garnetquartz subfacies; pyroxenegranulite subfacies The erection of a garnetquartz subfacies follows De Waard's suggestion (1965) of a garnetgranulite subfacies are now recognized, (i) garnetquartz, (b) wollastonite. A seven-fold sub-division of the granulite facies is thus proposed for Ceylon rocks. An attempt is made to trace briefly the major events in the metamorphic history of the rocks supported by available geochronological evidence.