Abstract

The first known occurrence of allanite from charnockites of the Eastern Ghats of Visakhapatnam, Andhra Pradesh, India, is reported. Chemical and spectrographic analysis and X-ray powder data are presented. The allanite belongs to a late paragenetic sequence in the coarse palingenetic charnockites and charnockite pegmatites which are derived from the structurally emplaced igneous charnockites during granulite-grade metamorphism.

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