Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Pink Granites in the Highland Series of Sri Lanka-A Case Study


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1 Department of Geology, University of Sri Lanka, Peradeniya, Sri Lanka
     

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Pink granites in the Digana antiform area of the Precambrian of Sri Lanka occupy the marginal zone of migmatites and metasediments of granulite facies, and occur as isolated bodies within the migmatite terrains. Field evidence and petrography of these rocks are suggestive of an anatectic origin. The period of emplacement is interpreted as being correlative with the basement mobilization and migmatisation presumed to have occurred at 1250 Ma which affected the Highland Series metasediments of Sri Lanka.
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  • Pink Granites in the Highland Series of Sri Lanka-A Case Study

Abstract Views: 205  |  PDF Views: 2

Authors

Tissa Munasinghe
Department of Geology, University of Sri Lanka, Peradeniya, Sri Lanka
C. B. Dissanayake
Department of Geology, University of Sri Lanka, Peradeniya, Sri Lanka

Abstract


Pink granites in the Digana antiform area of the Precambrian of Sri Lanka occupy the marginal zone of migmatites and metasediments of granulite facies, and occur as isolated bodies within the migmatite terrains. Field evidence and petrography of these rocks are suggestive of an anatectic origin. The period of emplacement is interpreted as being correlative with the basement mobilization and migmatisation presumed to have occurred at 1250 Ma which affected the Highland Series metasediments of Sri Lanka.