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

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Petrogenesis of the Perinthatta Anorthosite, Northern Kerala, India


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

   Subscribe/Renew Journal


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.
Subscription Login to verify subscription
User
Notifications
Font Size

Abstract Views: 185

PDF Views: 2




  • Petrogenesis of the Perinthatta Anorthosite, Northern Kerala, India

Abstract Views: 185  |  PDF Views: 2

Authors

C. G. Nambiar
Department of Marine Geology and Geophysics, Cochin University of Science & Technology, Cochin - 682 016, India
K. P. Soney
Department of Marine Geology and Geophysics, Cochin University of Science & Technology, Cochin - 682 016, India
M. Radhakrishna
Department of Marine Geology and Geophysics, Cochin University of Science & Technology, Cochin - 682 016, India

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.