Diverse mode of phosphatic rocks in the environs of Proterozoic Bijawar and Sonrai basins and its relevance to uranium mineralisation -A case study from central India

详细信息    查看全文

• 作者：Madhuparna Roy (1)
  T. P. S. Rawat (1)
  C. L. Bhairam (1)
  P. S. Parihar (2)
  
• 关键词：Phosphatic rocks ; Uranium mineralisation ; Bijawar basin ; Sonrai basin ; Central India
• 刊名：Journal of the Geological Society of India
• 出版年：2014
• 出版时间：March 2014
• 年：2014
• 卷：83
• 期：3
• 页码：259-272
• 全文大小：9,064 KB
• 参考文献：1. Altschuler, Z.S, Clarke, R.S., Jr and Young, E.J. (1958). Geochemistry of uranium in apatite and phosphorite. Shorter Contribution to general geology, Geological Survey Professional paper, 314-D, Washington, pp.45-0.
  2. Banerjee, D.M. (1982) Lithotectonics, phosphate mineralisation and regional correlation of Bijawar Group of rocks in Central India. / In: K.S. Valdiya, S.B. Bhatia and V.K. Gaur (Eds.), Geology of Vindhyancal.
  3. Banerjee, D.M. (1986) Proterozoic and Cambrian phosphorite regional review: Indian subcontinent. / In: P.J. Cooke and J.H. Shergold (Ed.), Phosphorite deposits of the world, v.1, Cambridge University Press, pp.70-0.
  4. Bashir, S (1989) Origin and formation of uranium in Jordanian phosphorite with emphasis on the attributes of existing radioactive disequilibrium. / In: Metallogenesis of uranium deposit. Proceedings of a technical committee meeting, Vienna, 1987. Pub: IAEA, Vienna, 1989
  5. Basu, A. K. (1986) Geology of parts of the Bundelkhand granite massif. Rec. Geol. Surv. India, v.117(2), pp.61-24.
  6. Baturin, G.N. (1982) Phosphorites in the sea floor: origin, composition and distribution in Developments in Sedimentology. Elsevier, 246p.
  7. Bushinski, G.I. (1964) On shallow water origin of phosphorite sediments. / In: L.M.J.V. Van Straaten (Ed.), Deltaic and shallow marine deposits.
  8. Garrels, R.H. (1955) Some thermodynamic relation among the uranium oxides and their relation to the oxidation states of the uranium ores of the Colorado Plateau. American Mineralogist, v.40, nos.11 & 12, pp1004-021.
  9. Haldar, D. and Ghosh, R.N. (2002) Eruption of Bijawar lava: An example of PreCambrian volcanicity under stable cratonic conditions. Proceedings volume. Internat. Sem. Precambrian crust in eastern and central India, IGCP-368, Bhubaneshwar.
  10. Haskin, L.A., Wildeman, T.R. and Haskin, M. A. (1968) An accurate procedure for the determination of the rare earths by neutron activation. Jour. Radioanalytical Chemistry, v.1, pp.337-48. CrossRef
  11. Krumbein, W.C. and Garrels, R.M. (1952) Origin and classification of chemical sediments in terms of Eh and oxidation-reduction potentials. Jour. Geol., v.60, pp.1-3. CrossRef
  12. Kumar, B, Srivastava, R.K, Jha, D.K, Pant, N.C. and Bhandaru, B.K. (1990) A revised stratigraphy of type area of the Bijawar Group in Central India. Indian Minerals, v.44, no.4, p303-14.
  13. Mondal, M.E.A. and Ahmad, T. (2001) Bundelkhand mafic dykes, central Indian shield, implications for the role of sediment subduction in Proterozoic crustal evolution. The Island Arc, Blackwell Science Asia, Australia, v.10, pp.51-7.
  14. Mondal, M.E.A. and Zainuddin, S.M. (2004) Crustal evolution of Bundelkhand massif, Central India, A reappraisal of current trend of Research. Jour. Econ. Geol. and Georesource management, v.1, no.2, pp.295-05.
  15. Pant, A., Khan, H.H and Sonakia, A (1989) Phosphorite resources in the Bijawar Group of central India / In: A.J.G. Notholt, R.P. Sheldon and D.F. Davidson (Eds.), Phosphorite deposits of the world. Phosphate rock resources. Cambridge University Press, v.2, pp 473-77.
  16. Perumal, N.V.A.S. (1970) Unpublished Annual Report for Field Season 1969-0, New Delhi.
  17. Prakash, R., Swarup, P. and Srivastava, R.N. (1975) Geology and mineralization in the southern parts of Bundelkhand in Lalitpur district, Uttar Pradesh. Jour. Geol. Soc. India, v.16, pp.143-56.
  18. Ramakrishnan, M. and Vaidyanathan, R. (2008) Geology of India. Geological Society of India, Bangalore, v.1, pp 249-60.
  19. Ravindra Nath, Roy, M., Pandey, P., Khandelwal, M.K. and Bhairam, C.L. (2012) Possible uranium source from Phosphorites of Sonrai basin, Lalitpur dist., U.P -A preliminary study. Indian Mineralogist, v.46, no.1, pp.1-6.
  20. Rawat, T.P.S., Roy, M., Sharma, M., Misra, P., Parihar, P.S. and Bhairam, C.L. (2010) Potentiality of Proterozoic Bijawar Basin and its environs for unconformity related uranium mineralisation in Bundelkhand Craton, Central India. EARFAMS, v.20, pp.27-2.
  21. Sarkar, A, Ghosh, S, Singhal, R.K. and Gupta, S.N. (1997) Rb-Sr Geochronology of the Dargawan sill: constraints on the age of the type Bijawar sequence of Central India. International conference on Isotopes in Solar system. Nov. 11-4 (Abstract vol.), pp.100-01.
  22. Srivastava, R.N. (1989) Bijawar phosphorite at Sonrai -geology, sedimentation, exploration strategy and origin. In: Phosphorites of India. Mem. Geol. Soc. India, v.13, pp.47-9.
  23. Verma, R.K. and Banerjee, P. (1992) Nature of continental crust along the Narmada-Son lineament inferred from gravity and deep seismic sounding data. Tectonophysics, v.202, pp.375-97. CrossRef
  24. Wakita H., Rey P. and Schmitt R.A. (1971) Elemental abundances of major, minor, and trace elements in Apollo 11 lunar rocks, soil and core samples. Proc. Apollo 11 Lunar Science Conference, pp.1685-717.
  
• 作者单位：Madhuparna Roy (1)
  T. P. S. Rawat (1)
  C. L. Bhairam (1)
  P. S. Parihar (2)
  
  1. Atomic Minerals Directorate for Exploration and Research, New Delhi, 110066, India
  2. Atomic Minerals Directorate for Exploration and Research, Hyderabad, 500016, India
  
• ISSN：0974-6889

文摘

The Bundelkhand massif comprising a variety of Archean-Paleoproterozoic granitoids along with low grade and high-grade metamorphites and located in the centre of the Indian Plate, underwent extension during Paleoproterozoic period, resulting in the formation of homotaxial intracratonic Bijawar and Sonrai basins in the south and Gwalior basin in the northern margin. The Bijawar and Sonrai basins are typified by their characteristic sediments and basic volcanic rocks. A feature common to both the basins, is the overwhelming occurrence of phosphatic rocks across stratigraphy and lithotype in the Bijawar basin and its confinement to the basal part of the sedimentary column in Sonrai basin. Most of these rocks are primarily of marine origin, and later subjected to periods of repeated phosphatic redistribution. Multiple episodes of such phosphatisation culminates in the proliferation and enrichment of phosphate in the upper Bijawar rocks of Bijawar basin (phosphatic breccia of Hirapur-Mardeora) and lower Bijawar rocks of Sonrai basin (phosphatic breccia of Lalitpur). Apart from these established phosphatic rocks in both the basins, quartz reefs occurring in the basement as well as the lower Bijawar Malhera Chert Breccia Formation in Bijawar basin at places are endowed with anomalously high phosphate content. The phosphatic component in all the lithotypes is in the form of apatite varying in form from microcrystalline to well formed coarser crystal aggregate comprising cement, veins and botroidal encrustations. Irrespective of its spatial, temporal and paragenetic position, it invariably registers weak to moderate radioactivity, due to the presence of uranium within it, as is evident from microprobe data. Although intra-grain and inter-grain distribution of uranium is found to be random and erratic, in general, it is observed that uranium tends to be enriched in the later generation phosphates, due to secondary process of dissolution and reprecipitation. The present paper, with fresh inputs from petrological, geochemical, minerochemical and isotope data pertaining to apatite from all these diverse units, not only explores the already established association of uranium and phosphate in these basins but also provides new insight to the phosphatic quartz reef within the basement and the phosphatised arenaceous sediments of the lower Bijawar Formation.