Abstract
Based on geological mapping and grid channel geochemical sampling, a carbonatite plug hosted REE deposit has been discovered at Kamthai, Barmer district, Rajasthan. The main REE minerals hosted by carbonatite plug are bastanesite (La), basnaesite (Ce), synchysite (Ce), carbocernaite (Ce), cerianite (Ce), ancylite and parisite. The highest value of LREE is 17.31%, whereas, mean works out 3.33% and weighted average is 2.97%. The carbonatite plug covers 19475 sq. meters and the resources have been estimated upto 84 m depth under Proved, Probable and Possible categories. The total resource estimation for carbonatite plug and other carbonate sills, dykes and veins is 4.91 million tons, making this as truly world class deposit. The TMC of individual LREO (lower rare earth oxide) calculated for carbonatite plug only are La=52196 tonnes, Ce =66026 tonnes, Nd = 13663 tonnes, Pr = 5415 tonnes, Sm = 920 tonnes and Eu = 207 tonnes. Besides these REE, the Kamthai resource will produce 551 tonnes of Ga, 44 tonnes of Ge and 1,12,830 tonnes of SrO during its mining life.
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References
Bell, K. (2001) Carbonatites: Relationships to mantle-plume activity. Geol. Soc. Amer. Spec. Paper 352.
Bhushan, S.K. and Chandrasekaran, V. (2002) Geology and geochemistry of the magmatic rocks of the Malani Igneous Suite and Tertiary Alkaline Province of Western Rajasthan. Mem. Geol. Surv. India, v.126, pp.1–12.
Bromby, R. (2011) The strange metals from China. REE World Report, v.9, pp.1–7.
Chaube, D.N., Navaneetham, N.K. and Bagchi, A.K. (1974) Report on the investigations carried out in the alkali complexes and overlying sedimentaries of Trans-Aravalli region, Rajasthan. Unpubld. Report of AMD.
Chandrasekaran, V. (1987) Geochemistry of the basic, acid and alkaline intrusives and extrusives of Sarnu-Dandali area, District Barmer, Rajasthan. Unpubld. Ph.D. Thesis, Univ. Rajasthan, Jaipur, p.108.
Chandrasekaran, V,, Srivastava, R.K. and Chawade, M.P. (1990) Geochemistry of the alkaline rocks of Sarnu-Dandali area, district Barmer, Rajasthan, India. Jour. Geol. Soc., v.36, pp.365–382.
Chawade, M.P. and Chandrasekaran, V. (1985) A report on systematic geological mapping in parts of Barmer district, Rajasthan. Geol. Surv. India Unpub. Report.
Ernst, R.E. and Bell, K. (2010) Large igneous provinces (LIPs) and carbonatites. Mineral. Petrol., v.98(1–4), pp.55–76.
Hanson, G.H. (1980) Rare earth elements in petro-genetic studies of igneous systems. Ann. Rec. Earth Planet. Sci., pp.371–406.
Indian Minerals Yearbook (2009) Indian Bureau of Mines, Dhanbad.
Jones, A.P., Wall, F. and Williams, C.T. (1996) Rare Earth minerals. Mineral. Soc. Series 7, pp.1–355.
Kanazawa, Y. and Kamitani, M. (2006) Rare earth minerals and resources in the world. Jour. Alloys and Compounds, v.408–412, pp.1339–1343.
Kim, J.A., Dodbiba, G., Fujita, T. and Fujii, N. (2010) Characteristics analysis of a bastnaesite rare earth mineral for recovery of cerium. XXI Int. Min. Proc. Cong. (IMPC) 2010. Australia, pp.2927–2932.
Koeberi, C. (1993) Instrumental neutron activation analysis of geochemical and cosmochemical samples: a fast and reliable method for small sample analysis. Jour Radio Analytical Nuc. Chem., v.168, pp.47–60.
Leelanandam, C. (1989) Alkaline Rocks. Mem. Geol. Soc. India, no.15, pp.1–291.
Le Bas, M.J. (1999) Sovite and Alvikite: Two chemically distinct carbonatites C1 and C2. South African Jour. Geol., v.102(2), pp.109–121.
le Maitre, R.W., Bateman, P. and Dudek, A. (1989) A classification of igneous rocks and glossary of terms. Blackwell Scientific Publications, Oxford, 193p.
Mining Engineers’ Journal (2011) Pacific floor muddies China’s rare earth, v13(2), p.10.
Narayan Das, G.R. (1973). Report on the investigation carried out around Sarnu, Jasai, Mungeria, Siwana of Barmer District and carbonatites of Mer-Mundwara complex of Sirohi Dist.Rajasthan. Unpubld. Report of AMD, 1972–1973.
Narayan Das, G.R., Bagchi, A.K., Chaube, D.N., Sharma, C.V. and Navaneethan, V. (1978) Rare metal contents, geology and tectonic setting of the alkaline complexes across the Trans-Aravalli Region, Rajasthan. Recent Res. Geol., v.7, pp.201–219.
Ratnakar, J. (2007) Lithosphere control of the Proterozoic alkaline magmatism: the miaskitic nepheline syenites of southern India. In: C. Leelanandam, I.B.R. Rao, Ch. Sivaji and M. Santosh (Eds.), The Evolution of the Indian Continental Crust and Upper Mantle. Intern. Assoc. Geol. Res. (IAGR) Mem. no.10, pp.109–121.
Ratnakar, J. (2008) Nature of Precambrian alkaline magmatism in southern India: the nepheline syenite complexes. Jour. Appld. Geochem., v.10, pp.60–75.
Ratnakar, J. and Leelanandam, C. (1989) Petrology of alkaline plutons from the eastern and southern Peninsular India. Mem. Geol. Soc. India, No.15, pp.145–176.
Ren, J., Lu, S., Song, S. and Niu, J. (1997) A new collector for Rare Earth Mineral Flotation, Mineral Engineering, v.10(12), pp.1395–1404.
Reimold, W.U., Koeberi, C. and Bishop, J. (1994) Roter Kamm impact crater, Namibia: Geochemistry of basement rocks and breccias. Geochim. Cosmochim. Acta, v.58, pp.2689–2710.
Ray, J.S., Ramesh, R., Pande, K., Trivedi, J.R., Shukla, P.N. and Patel, P.P. (2000) Isotope and rare earth element chemistry of carbonatitealkaline complexes of Deccan volcanic province: implications to magmatic and alteration processes. Jour. Asia. Earth Sci., v.18(2), pp.177–194.
Ray, J.S. and Ramesh, R. (1999) Evolution of carbonatite complexes of the Deccan flood basalt province: Stable carbon and oxygen isotopic constraints. Jour. Geophys. Res., v.104, no. B12, pp.29,471–29,483.
Schilling, J.G. (1971). Sea-floor evolution: Rare-earth evidence. Phil. Trans. Royal Soc. London, A 268, pp.663–706.
Simonetti, A., Goldstein, S.L., Schmidberger, S.S. and Viladkar, S.G. (1998). Geochemical and Nd, Pb and Sr isotope data from Deccan Alkaline Complexes-Inferences for Mantle sources and Plume-Lithosphere Interaction. Jour. Petrol., v.39, pp.1847–1864.
Srivastava, R.K., Wall, F. and Le Bas, M.J. (1993). Sr-REE rich carbonatite dyke from Sarnu-Dandali, Barmer, Rajasthan. Curr. Sci., v.65. pp.170.
Tuttle, O.F. and Gittins, J. (1966) Carbonatites. Interscience Publishers. John Wiley and Sons. NY. Pp. XI–XIX.
Udas, G.R., Narayan Das, G.R. and Sharma, C.V. (1974) Carbonatites of India in relation of structural setting. Proc. Internat. Sem. on Tectonics and Metallogeny of S.E. Asia and Far East. Geol. Surv. India, Calcutta.
Viladkar, S.G. and Zaitsev, V.A. (2011) Preliminary data about alkaline rocks occurrences from Barmer region, Rajasthan, India. Abs. Inter. Conf. on ore potential of alkaline, kimberlite and carbonatite magmatism. pp.1–2.
Wall, F., Le Bas, M.J. and Srivastava, R.K. (1993) Calcite and Carboceranite exsolution and cotectic texture in a Sr-REE rich carbonatite dyke from Rajasthan, India. Mineral. Mag., v.57, pp.495–513.
Woolley, A.R. and Kempe, D.R.C. (1989) Carbonatites: nomenclature, average chemical compositions and element distribution in carbonatites: Genesis and Evolution. Unwin Hyman, London, pp.1–14.
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Bhushan, S.K., Kumar, A. First carbonatite hosted REE deposit from India. J Geol Soc India 81, 41–60 (2013). https://doi.org/10.1007/s12594-013-0005-y
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DOI: https://doi.org/10.1007/s12594-013-0005-y