Co-existing cordierite-almandine-a key to the metamorphic history of Sri Lanka |
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Authors: | LRK Perera |
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Institution: | Department of Geology, University of Peradeniya, Peradeniya Sri Lanka |
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Abstract: | A co-existing cordierite—almandine assemblage is described from the pelitic metasedimentary rocks of the Precambrian granulite-facies terrain of Sri Lanka. The chemical control on this assemblage is demonstrated, as has been observed in granulite-facies terrains elsewhere. The previous view of a low-pressure origin of cordierite in pelitic rocks, and the subdivision of the central granulite-facies belt of Sri Lanka based thereon, is hence doubtful. |
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