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RECORDS

THE GEOLOGICAL SURVEY OF INDIA.

VOLUME XXIV.

Published by order of His Excellency the Governor General of India

in Council.

CALCUTTA:
SOLD AT THE OFFICE OF THE GEOLOGICAL SURVEY

(AND BY ALL BOOKSELLERS).
LONDON: KEGAN, PAUL, TRENCH, TRÜBNER & CO.

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CALCUTTA:
GOVERNMENT OF INDIA CENTRAL PRINTING OFFICE,

8, HASTINGS STREET.

Benz CONTENTS.

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ANNUAL REPORT of the Geological Survey of INDIA, AND OF THE

GEOLOGICAL MUSEUM, CALCUTTA, FOR THE YEAR 1890.

PENINSULAR INDIA. Madras PRESIDENCY.- Crystalline and Transition Series.—The auriferous conMr. Foote.

dition of the Dhárwár series in the Anantapur and Bellary

districts has been the main subject of economic survey, and concomitant with this enquiry the areas of the Dhárwár rocks in those districts have been as closely demarcated as time would allow in the hands of the single officer of the Survey now left to carry on the work in Southern India.

Mr. Foote reports that by the beginning of 1890 he had completed the examinCompletion of Bel. ation of the taluks of Harapanahalli, Haddagalli, Kudligi, lary-Anantapur belts of and Riadrug, forming the southern half of the Bellary Dharwars.

district. The field season was concluded in the Anantapur district, where an area of 200 square miles was mapped out in following up the · southerly extension of the Penner-Haggari band of Dharwars.

In these regions the auriferous indications were not worthy of any particular notice; and the conclusion is, that future development must rely on the more promising tracts already pointed out by Mr. Foote.

On the south-west edge of the Cuddapah district, in the Kudiri taluk, I myself Examination of belt long ago noted the occurrence of a series of sub-metamorin the Cuddapah dis. phic rocks which Mr. Foote's later investigations showed trict commenced.

must also be of the Dhárwár series; while we have both from time to time surmised that this occurrence might possibly be a northerly extension of the well-known and productive belt of Kolar in Mysore. The completion of the Bellary-Anantapur area now allows of this Cuddapah tract, which is in British territory, being surveyed, and Mr. Foote has commenced the present field season with that object.

Another gold region in which the granting of mining concessions has been before Old gold mines at the Madras Government, in the Kolegal taluk of the CoimKolegal, Coimbatore batore district, has long waited for authoritative opinion; and district.

in October last Mr. Foote was enabled to make a preliminary inspection. He found, however, that this tract of old mining is not in the

mustacks which Moccurrence of

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