Nature 183, 483 - 484 (14 February 1959); doi:10.1038/183483b0

Trap-Shotten Rock from the Biligirirangan Hills, Mysore State, India

C. S. PICHAMUTHU

Department of Geology, University of Malaya, Singapore 10. Dec. 15.

CHARNOCKITIC rocks have been developed over a wide area in the southern part of the State of Mysore in India. The typical charnockites are found in isolated patches of varying dimensions. The largest of these occurrences is in the Biligirirangan Hills, where a fairly continuous mass of charnockite extending more than 25 miles forms this mountainous tract which lies between 11° 40' and 12° N. In this region peaks of more than 5,000 ft. are common on the ranges, which generally trend in a north to south direction.

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