Uranium Mineralization in Leucogranite of Mastipuram Area, Wanaparti District, Telangana — A New Find
- 24 Downloads
The NNW-SSE trending leucogranites in and around Mastipuram, Wanaparthi district, Telangana are intrusive into Peninsular Gneissic complex. The leucogranite is metaluminous to mildly peraluminous, alkali-feldspar granite with I-type signatures, probably formed from a fractionated melt involving crustal component. Magmatic and hydrothermal contributions are supported by wide range of U/Th ratios in mineralized samples, which also show Na-enrichment as compared to non-mineralized leucogranites. Average U and Th contents and U/Th ratio in mineralized leucogranite is 541ppm, 147 ppm and 2.85, respectively. Main ore mineral is uraninite and its altered form - gummite, while secondary uranium minerals such as schoepite, uranophane and haiweeite are also identified in leucogranite by XRD. Reconnoitory drilling of ten boreholes have confirmed sub-surface continuation of uranium mineralization with varying width of 1m to 31m at vertical depth of about 50m. Thus, the leucogranites bordering Gadwal schist belt around Mastipuram forms a very potential target.
Unable to display preview. Download preview PDF.
- Bisht, B.S., Rajasekaran, P. and Sinha, R.M. (2001) Fluid inclusion characteristics of unconformity related uranium mineralisation, Lambapur-Peddagattu area, Andhra Pradesh, India. Jour. Geol. Soc. India, v. 58, pp. 45–51.Google Scholar
- Condie, K.C. (1989) Plate tectonics and crustal evolution. Pergamon Press, New York, 476p.Google Scholar
- Dhana Raju, R., Umamaheswar, K., Thirupathi, P.V., Deshmukh, R.D., Rai, A.K., Harikrishnan, T. and Patel, P.K. (2001) Characterisation of the granitoids in the south-western environs of Cuddapah Basin, Andhra Pradesh, India and its bearing on uranium mineralization. Jour. Atom. Min. Sci, v.7, pp.1–11.Google Scholar
- Frondel, C. (1958) Systematic mineralogy of Uranium and Thorium. Geol. Surv. Bull., no.1064, 400p.Google Scholar
- King, W. (1872) Kudapah and Karnul Formations in the Madras Presidency. Mem. Geol. Surv. India, v.8(1), 346p.Google Scholar
- Kulshrestha, S.C. (1961) Report on the investigations carried out in Gadwal Taluk, Mehaboobnagar distrct, Andhra Pradesh. Unpublished Annual Report of AMD.Google Scholar
- Mason, B. and Moore, C.B. (1991) Principles of Geochemistry. 4th Edition, Wiley Eastern Limited, 350p.Google Scholar
- Morad, S., El-Ghali, M.A.K., Caja, M.A., Sirat, M., Al-Ramadan, K. and Mansurbeg, H. (2009) Hydrothermal alteration of plagioclase in granitic rocks from Proterozoic basement of SE Sweden. Geol. Jour. (https://doi.org/www.interscience.wiley.com).
- Nagaraja Rao, B.K., Rajurkar, S.T., Ramlingaswamy, G. and Ravindra Babu, B. (1987) Stratigraphy, structure and evolution of the Cuddapah basin, In: Purana Basins of Peninsular India. Mem. Geol. Soc. India, no.6, pp.33–86.Google Scholar
- Rao, K.B. (1962) Report on the radioactive granites of Anantapur (Gadwal), Mehabubnagar district, Andhra Pradesh. Unpulbld. Annual Report of AMD.Google Scholar
- Shand, S.J. (1943) The Eruptive rocks: 2nd Edition, John Wiley, New York, 444p.Google Scholar
- Shrivastava, V.K., Parthasarathy, T.N. and Sinha, K.K. (1992) Geochemical studies of uraniferous granitoids from Lambapur area, Nalgonda district, Andhra Pradesh, India. Expl. Res. Atom. Min., v.5, pp.41–52.Google Scholar
- Sinha, R.M., Parthasarathy, T.N. and Dwivedi, K.K. (1996) On the possibility of identifying low cost, medium grade uranium deposits close to the Proterozoic unconformity in the Cuddapah basin, Andhra Pradesh, India. IAEA-TECDOC-868, pp.35–55.Google Scholar
- Stuckless, J.S. and Ferreira, C.P. (1985) Labile uranium in granitic rocks, IAEA-SM-208/17.Google Scholar
- Viswanathan, S. and Singh, Yamuna (2010) Critical element ratio maps of granitic terrains for exploration of atomic minerals. Jour. Appl. Geochem., v.12(3), pp.333–341.Google Scholar
- Zakaulla, S., Rai, A.K. and Umamaheswar, K. (2012) Characteristics of basement granitoids and their role on uranium mineralization in and around southwestern margin of Cuddapah Basin, Andhra Pradesh. Expl. Res. Atom. Min., v.22, pp.123–139.Google Scholar