Petrochemistry of the Chengannoor Granite, Alleppey District, Kerala
Abstract
The granite of Chengannoor, Alleppey district, Kerala, having an intrusive relationship with Precambrian charnockite-cordierite gneiss sequence is inferred to be a post-kinematic granite of magmatic origin. The major mineral constituents are mesoperthitic K-feldspar with quartz and two generations of plagioclase. A late/post intrusive potash metasomatism caused changes in the mineralogy and chemical composition of the granite.
Recent K-Ar dating of hornblende from the Chengannoor granite assigns an age of 550 m.y. for the granite (Soman, Golubyev and Santosh. Ind. Jour, Earth Science) (in press).
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Research Papers
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Published
1983-06-01
How to Cite
Santosh, M., & Nair, N. G. K. (1983). Petrochemistry of the Chengannoor Granite, Alleppey District, Kerala. Journal of Geological Society of India, 24(6), 291–298. Retrieved from https://geosocindia.com/index.php/jgsi/article/view/65342