Abstract
Ground Radiometric survey of Paleoproterozoic pyritiferous quartz-pebble conglomerate (QPC) occurring to the north of Pallahara area led to the discovery of a QPC type uranium mineralisation near Mankarhachua village. Significant radioactivity is recorded in three sub-parallel uraniferous QPC horizons with metamorphosed pebbly to medium grained recrystallised massive sandstones. Detrital grains of uranothorite, thorite, radioactive allanite, monazite, zircon, minute uraninite grains in carbonaceous matter and thucolite contributes to the radioactive phases present in QPC matrix. Adsorbed U on limonite and goethite, secondary uranyl minerals in matrix, along bedding planes and fractures are commonly observed. This discovery has opened up a new horizon for future exploration for QPC type uranium mineralization in the area. The paper presents observations on geology, radioactivity, petrological and geochemical nature of the uraniferous QPC horizons.
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Bekker, A., Holland, H.D., Wang, P.-L., Rumble, D., Stein, H.J., Hannah, J.L., Coetzee, L.L. and Beukes, N.J. (2004) Dating the rise of atmospheric oxygen. Nature, v.427, pp.117–120.
Bhaumik, B.K., Bhattacharya, T., Acharyulu, A.A.P.S.R., Srinivas, D. and Sandilya, M.K. (2004) Principles of radiometry in radioactive metal exploration. Published by: Physics Lab, Eastern Region, AMD Complex, Khasmahal, Jamshedpur — 831 002, Jharkhand, India, First Edition, 292p.
Cuney, M. (2010) Evolution of Uranium Fractionation Processes through Time: Driving the Secular Variation of Uranium Deposit Types Society of Economic Geologists, Inc. Econ. Geol., v. 105, pp. 553–569.
Das, A.K., Awasti, A.B. and Sahoo, P. (1988) Quartz-pebble conglomerate of the Singhbhum craton, Bihar and Orissa. Mem. Geol. Soc. India., No.9, pp.83–87.
Eichhloz, G.G., Hilborn, J.W. and Mcmahon, C. (1953) The determination of uranium and thorium in ores. Canadian Jour. Physics, v.31, pp.613–628.
Fareeduddin, Jas. (1990) Significance of occurrence of detrital pyrite and uraninite on the Kalasapura conglomerate, Karnataka. Indian Minerals, v.44, pp.335–340.
Levinson, A.A. and Coetzee, G.L. (1978) Implications of disequilibrium in exploration for uranium ores in the surfacial environment using radiometric techniques — a review. Mineral Sci. Engg., v.10, no.1, pp.19–27.
Mahadevan, T.M. (1986) Space-time controls in Precambrian uranium mineralisation in India. Jour. Geol. Soc. India, v.27(1), pp.47–62.
Mishra, K.S., Durairaju, S., Rajshekharan, P. and Das, A.K. (1997) Occurrence of U-Au-REE bearing quartz pebble conglomerate at Sayamba-Taldih, Sundergarh district, Orissa. Jour. Geol. Soc. India, v.50(1), pp.93–94.
Saha, A.K. (1994) Crustal Evolution of Singhbhum-North Orissa, Eastern India. Mem. Geol. Soc. India, no.27, 341p.
Sarkar, S.N., Saha, A.K. and Sen, Subhasis (1990) Structural Pattern of Pala Lahara Area, Dhenkanal District based on Aerial Photo Interpretation and Ground Data. Indian Jour. Earth Sci., v.17(2), pp.128–137.
Yang, W. and Holland, H.D. (2002) The redox-sensitive trace elements, Mo, U, and Re in Precambrian carbonaceous shales: Indicators of the Great Oxidation Event [abs.]. Geol. Soc. Amer. Abstract and Programs, v.34, pp.381.
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Chakrabarti, K., Ecka, N.R.R., Mishra, B. et al. Paleoproterozoic quartz-pebble conglomerate type uranium mineralisation in Mankarhachua area, Angul district, Orissa. J Geol Soc India 77, 443–449 (2011). https://doi.org/10.1007/s12594-011-0046-z
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DOI: https://doi.org/10.1007/s12594-011-0046-z