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

C. G. Nambiar ¹, K. P. Soney ¹, M. Radhakrishna ¹

Affiliations
1 Department of Marine Geology and Geophysics, Cochin University of Science & Technology, Cochin - 682 016, IN

Abstract

The anorthosite pluton has textural and trace element characteristics typical of a magmatic cumulate. A soda-rich intermediate magma is inferred to be the parent. Rare earth element based modelling shows that the anorthosite was derived from a parental melt having hundred times chondritic REE with a slightly fractionated pattern probably derived by the melting of granulitic or edogitic source.

Keywords

Petrogenesis, Anorthosite, Proterozoic Magmatism, Kerala.

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