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

S. Ananda Murthy ¹, V. Aneel Kumar ¹, P. V. Krishna Rao ¹, Sekhar Mallick ²

Affiliations
1 Project Gold, Operations Andhra Pradesh, Geological Survey of India, Southern Region, Hyderabad - 500 068, IN
2 Chemical Division, Southern Region, Geological Survey of India, Hyderabad-500 068, IN

Abstract

Heavy-concentrate has been found to be the most suitable sampling medium in geochemical exploration for gold in Atkur area of Gadwal schist belt, Mahabubnagar district, Andhra Pradesh. Au-contents in panned heavy concentrates of soil samples from B-horizon and termite mounds helped in improving gold anomaly contrast. SEM and heavy-concentrate analyses of termite samples reaffirm their utility in exploration for gold. Hence, the study of heavy fraction of soil and termite mound can be used as an important tool to reveal the subtle anomaly present in the conventional samples.

Keywords

Economic Geology, Termite Mound, Soil, Heavy Concentrate, Au-Anomaly, Gadwal Schist Belt, Andhra Pradesh.

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S. Ananda Murthy ¹, S. Bhattacharjee ¹

Affiliations
1 Geological Survey of India, Hyderabad-500 068, IN

Abstract

Examination of soil and bed rock samples of pegmatites and metabasalts has helped in identifying an auriferous zone in Guntipalli-Atkur area. The samples analysed anomalous gold values ranging from 0.025 to 4.25 ppm.

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