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Mineralogy and 40Ar/39Ar geochronology of orangeites (Group II kimberlites) from the Damodar Valley, eastern India

Published online by Cambridge University Press:  05 July 2018

Ray W. Kent ,
Simon P. Kelley  and
Malcolm S. Pringle
Ray W. Kent
Affiliation:
Department of Geology, University of Leicester, University Road, Leicester LE1 7RH, UK
Simon P. Kelley
Affiliation:
Department of Earth Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
Malcolm S. Pringle
Affiliation:
Scottish Universities Research and Reactor Centre, East Kilbride, Glasgow, G75 0QF, UK
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Abstract

A suite of ultramafic-mafic alkaline igneous rocks in the Damodar Valley, eastern India, contains carbonate, phosphate and titanate minerals that are not characteristic or common in minettes or lamproites, but are typical of orangeites (Group II kimberlite) from southern Africa. Phlogopite grains from the Damodar alkaline rocks yield mean 40Ar/39Ar ages of 116.6±0.8 Ma, 113.5±0.5 Ma and 109.1±0.7 Ma (1σ errors) using laser dating techniques. These ages are similar to the Rb-Sr ages of African orangeites, which lie mostly in the range 121 to 114 Ma. Prior to this study, only one possible occurrence of orangeite (the ∼820 m.y.-old Aries pipe, Western Australia) was known outside the Kaapvaal craton and its environs. If the Damodar alkaline rocks are bona fide orangeites, it is likely that they were generated at depths of >150 km, within the stability field of diamond.

Keywords

orangeiteGroup II kimberlite40Ar/39Arcratondiamond
Type
Research Article
Information
Mineralogical Magazine , Volume 62 , Issue 3 , June 1998 , pp. 313 - 323
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1998

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References

Chatterjee, B., Smith, C.B., Jha, N. and Khan, M.W.Y. (1995) Kimberlites of southeast Raipur kimberlitic field, Raipur district, Madhya Pradesh, Central India. Proc. Sixth Int. Kimb. Conf., Novosibirsk, Russia,Ext. Abstr., 106–8.Google Scholar
Edwards, D., Rock, N.M.S., Taylor, W.R., Griffin, B.J. and Ramsay, R.R. (1992) Mineralogy and petrology of the Aries diamondiferous kimberlite pipe, central Kimberley block, Western Australia. J. Petrol., 33, 1157–91.CrossRefGoogle Scholar
Fox, C.S. (1930) The Jharia coalfield. Mem. Geol. Surv. India, 56, 113–46.Google Scholar
Gee, E.R. (1932) The geology and coal resources of the Raniganj coalfield. Mem. Geol. Surv. India, 61, 80–99.Google Scholar
Gupta, A.K., Le Maitre, R.W., Haukka, M.T. and Yagi, K. (1983) Geochemical studies on the carbonated apatite-glimmerites from Damodar Valley, India. Proc. Japan. Acad. Sci., B59, 113–6.CrossRefGoogle Scholar
Kent, R.W., Ghose, N.C., Paul, P.R., Hassan, M.J. and Saunders, A.D. (1992) Coal–magma interaction: an integrated model for the emplacement of cylindrical intrusions. Geol. Mag., 129, 753–62.CrossRefGoogle Scholar
Kent, R.W., Saunders, A.D., Kempton, P.D. and Ghose, N.C. (1997) Rajmahal basalts, eastern India: mantle sources and melt distribution at a volcanic rifted margin. In: Large Igneous Provinces (Mahoney, J.J. and Coffin, M.F., eds), Am. Geophys. Union Monogr., 100, American Geophysical Union, Washington, D.C., 145–82.Google Scholar
Kumar, A., Padma Kumari, V.M., Dayal, A.M., Murthy, D.S.N. and Gopalan, K. (1993) Rb-Sr ages of Proterozoic kimberlites in India: evidence for contemporaneous emplacement. Precam. Res., 62, 227–37.CrossRefGoogle Scholar
Middlemost, E.A.K., Paul, D.K. and Fletcher, I.R. (1988) Geochemistry and mineralogy of the minette -lamproite association from the Indian Gondwanas. Lithos, 22, 31–42.CrossRefGoogle Scholar
Mitchell, R.H. (1995) Kimberlites, Orangeites, and Related Rocks. Plenum Press, New York.CrossRefGoogle Scholar
Mitchell, R.H. and Bergman, S.C. (1991) Petrology of Lamproites. Plenum Press, New York.CrossRefGoogle Scholar
Mitchell, R.H. and Meyer, H.O.A. (1989) Niobian K-Ba-V titanates from micaceous kimberlite, Star Mine, Orange Free State, South Africa. Mineral. Mag., 53, 451–6.CrossRefGoogle Scholar
Müller, R.D., Royer, J.-Y. and Lawver, L.A. (1993) Revised plate motions relative to the hotspots from combined Atlantic and Indian Ocean hotspot tracks. Geology, 21, 275–8.2.3.CO;2>CrossRefGoogle Scholar
Newlay, S.K. and Pashine, J. (1993) New find of diamond-bearing kimberlite in Raipur district, Madhya Pradesh, India. Curr. Sci., 65, 292–3.Google Scholar
Paul, D.K. and Sarkar, A. (1984) Petrogenesis of some Indian lamprophyres. Spec. Publ. Geol. Surv. India, 12, 45–54.Google Scholar
Radhakrishna, B.P. (1989) Suspect tectono-stratigraphic terrane elements in the Indian sub-continent. J. Geol. Soc. India, 34, 1–24.Google Scholar
Rao, N.V.C., Miller, J.A., Pyle, D.M. and Madhavan, V. (1996) New Proterozoic K-Ar ages for some kimberlites and lamproites from the Cuddapah Basin and Dharwar Craton, South India: evidence for non-contemporaneous emplacement. Precam. Res., 79, 363–9.Google Scholar
Rock, N.M.S. and Paul, D.K. (1989) ‘Lamprophyres’, ‘lamproites’ and ‘kimberlites’ in India: a bibliography and preliminary reappraisal. Mem. Geol. Soc. India, 15, 291–311.Google Scholar
Rock, N.M.S., Griffin, B.J., Edgar, A.D., Paul, D.K. and Hergt, J.M. (1992) A spectrum of potentially diamondiferous lamproites and minettes from the Jharia coalfield, eastern India. J. Volcanol. Geotherm. Res., 50, 55–83.CrossRefGoogle Scholar
Samson, S.D. and Alexander, E.C. (1987) Calibration of the interlaboratory 40Ar/39Ar dating standard, MMhb-1. Chem. Geol., 66, 27–34.Google Scholar
Sarkar, A., Paul, D.K., Balasubrahmanyan, M.N. and Sengupta, N.R. (1980) Lamprophyres from Indian Gondwanas - K-Ar ages and chemistry. J. Geol. Soc. India, 21, 188–93.Google Scholar
Sarkar, A., Datta, A.K., Poddar, B.C., Kollapuri, V.K., Bhattacharyya, B.K. and Sanwal, R. (1996) Geochronological studies of Mesozoic igneous rocks from eastern India. J. Southeast Asian Earth Sci., 13, 77–81.CrossRefGoogle Scholar
Scott, B.H. (1981) Kimberlite and lamproite dykes from Holsteinsborg, West Greenland. Medd. Grønland Geosci., 4, 3–24.Google Scholar
Scott-Smith, B.H. (1989) Lamproites and kimberlites in India. Neues Jb. Min. Abh., 86, 193–225.Google Scholar
Singer, B.S. and Pringle, M.S. (1996) Age and duration of the Matuyama-Brunhes geomagnetic polarity reversal from 40Ar/39Ar incremental-heating analyses of lavas. Earth Planet. Sci. Lett., 139, 47–61.CrossRefGoogle Scholar
Skinner, E.M.W. (1989) Contrasting Group I and II kimberlite petrology: towards a genetic model for kimberlites. In: Kimberlites and Related Rocks. Vol. 1. Their composition, occurrence, origin and emplacement (Ross, J. Jaques, A.L. Ferguson, J., Green, D.H. O’Reilly, S.Y., Danchin, R.V. and Janse, A.J.A., eds), Geol. Soc. Austral. Spec. Publ., 14, Geological Society of Australia, 528–44.Google Scholar
Skinner, E.M.W., Viljoen, K.S., Clark, T.C. and Smith, C.B. (1994) The petrography, tectonic setting and emplacement ages of kimberlites in the southwestern border region of the Kaapvaal craton, Prieska area. In: Kimberlites and Related Rocks and Mantle Xenoliths (Meyer, H.O.A. and Leonardos, O.H., eds), Proc. Fifth Int. Kimb. Conf., Companhia de Pesquisa de Recursos Minerais, Spec. Publ. 1A, Brasilia, Brazil, 80–97.Google Scholar
Smith, C.B., Clark, T.C., Barton, E.S. and Bristow, J.W. (1994) Emplacement ages of kimberlite occurrences in the Prieska region, southwest border of the Kaapvaal craton, South Africa. Chem. Geol., 113, 149–69.CrossRefGoogle Scholar
Tainton, K.M. (1992) The petrogenesis of Group II kimberlites and lamproites from the northern Cape Province, South Africa. Ph.D. thesis, University of Cambridge.Google Scholar
Taylor, W.R., Tompkins, L.A. and Haggerty, S.E. (1994) Comparative chemistry of West African kimberlites: evidence for a micaceous kimberlite end-member of sub-lithospheric origin. Geochim. Cosmochim. Acta, 58, 4017–37.CrossRefGoogle Scholar
Thy, P., Stecher, O. and Korstgard, J.A. (1987) Mineral chemistry and crystallization sequences in kimberlite and lamproite dikes from the Sisimiut area, central West Greenland. Lithos, 20, 391–417.CrossRefGoogle Scholar
Wijbrans, J.R., Pringle, M.S., Koppers, A.A.P. and Scheveers, R. (1995) Argon geochronology of small samples using the VULKAAN argon laserprobe. Proc. Koninkl. Ned. Akad. Wetensch., 98, 185–218.Google Scholar