Concentration of U and Th in the Bloedkoppie Granite, Namibia
The leucocratic Bloedkoppie Granite is generally considered to be the source rock of most of the uranium concentrated in the nearby Langer Heinrich calcrete-hosted uranium deposit. Ground gamma-ray radiometric measurements for K, U and Th along two survey profiles within the Bloedkoppie Granite showed that the intrusive body is uranium-rich with 15 ppm U and 33 ppm Th. Pegmatite dykes within the granite contain relatively higher U concentrations (23 ppm) compared to the granite (10 ppm).
KeywordsSource Rock Uranium Mineralization Pegmatite Vein Potential Source Rock Survey Profile
- Cuney, M. (2008). The extreme diversity of uranium deposits. Mineralium Deposita, www.springerlink.com, accessed March 2010.Google Scholar
- Hambleton-Jones, B.B. (1976). The geology and geochemistry of some epigenetic uranium deposits near the Swakop River, South-West Africa. Ph.D. Thesis, University of Pretoria, 306 pp.Google Scholar
- Hambleton-Jones, B.B. (1984). Surficial uranium deposits in Namibia. In: TOEN, P.D. (ed) Surficial Uranium Deposits. IAEA-Tecdoc-322, Vienna, 205–216.Google Scholar
- Jacob, R.E., Corner, B., Brynard, H.J. (1986). The regional and structural setting of the uraniferous granitic provinces of southern Africa, 1807–1818. In: Anhaeusser, C.R., and Maske, S. (eds.) Mineral Deposits of Southern Africa, II. Geological Society of South Africa, 2335 pp.Google Scholar
- Lehman, B. (2008). Uranium ore deposits. www.advanced-mining.com, Issue 2, accessed February 2010.Google Scholar