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

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Soil and Stream Sediment Based Geochemical Mapping: A Case Study in Goa


Affiliations
1 Geological Survey of India, Opn K&G, K.S. Layout, Bangalore - 560 078, India
2 Geological Survey of India, Opn Orissa, Nayapalli, Bhubaneswar - 751 012, India
3 Geological Survey of India, CHQ, 27 JLN Road, Kolkata - 700 016, India
4 Geological Survey of India, Flat No-310, Block-B, Maharaja Residency, Mangalore -575 001, India
5 Geological Survey of India, House No-367, Amarjyothi Layut, Domlur, Bangalore - 560 071, India
     

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Geochemical mapping has been carried out in Goa using soil/laterite and stream sediment as media. The geochemical maps for U, Th, Nb and Ta show a conspicuous pattern in the NW part of Goa. The anomaly axis shows a NE-SW trend which is across the formational trend. The nickel and copper distribution around Usgaon area, east of Ponda, have indicated anomalous signature in the northern continuation of the Usgaon ultramafic complex.

Keywords

Soil and Stream Sediment, Geochemical Mapping, Goa.
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  • Soil and Stream Sediment Based Geochemical Mapping: A Case Study in Goa

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Authors

D. Purushothaman
Geological Survey of India, Opn K&G, K.S. Layout, Bangalore - 560 078, India
J. P. Mohakul
Geological Survey of India, Opn Orissa, Nayapalli, Bhubaneswar - 751 012, India
Asit Saha
Geological Survey of India, CHQ, 27 JLN Road, Kolkata - 700 016, India
K. T. Vidyadharan
Geological Survey of India, Flat No-310, Block-B, Maharaja Residency, Mangalore -575 001, India
N. Rajendran
Geological Survey of India, House No-367, Amarjyothi Layut, Domlur, Bangalore - 560 071, India

Abstract


Geochemical mapping has been carried out in Goa using soil/laterite and stream sediment as media. The geochemical maps for U, Th, Nb and Ta show a conspicuous pattern in the NW part of Goa. The anomaly axis shows a NE-SW trend which is across the formational trend. The nickel and copper distribution around Usgaon area, east of Ponda, have indicated anomalous signature in the northern continuation of the Usgaon ultramafic complex.

Keywords


Soil and Stream Sediment, Geochemical Mapping, Goa.

References