Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T08:57:33.820Z Has data issue: false hasContentIssue false
  • English
  • Français

A newly discovered kimberlitic rock from Pakistan

Published online by Cambridge University Press:  05 July 2018

Zulfiqar Ahmed  and
George R. McCormick
Zulfiqar Ahmed
Affiliation:
Centre of Excellence in Mineralogy, University of Baluchistan, GPO Box 43, Quetta, Pakistan
George R. McCormick
Affiliation:
Department of Geology, University of Iowa, Iowa City, Iowa 52242, U.S.A., and Centre of Excellence in Mineralogy, University of Baluchistan, Quetta, Pakistan
Get access Rights & Permissions [Opens in a new window]

Abstract

This first report of the occurrence of a kimberlitic rock in Pakistan is supported by its field relations, textures and mineral chemistry. Linear dykes, lenses, conical and pipe-like bodies, plugs and sills intrude non-orogenic, early Jurassic limestone near the SW extremity of an Eocene-emplaced ophiolite on the transform-type Indian plate margin; far away from the stable Precambrian craton. The rock resembles ‘micaceous kimberlites’ petrographically and contains olivine, phlogopite, perovskite, chromian spinel, monticellite, chlorite, serpentine, calcite, apatite, pectolite, clinopyroxene, amphibole, nepheline, magnetite and titanomagnetite. The minerals and their microprobe analyses resemble those of kimberlitic rocks.

Keywords

kimberlitesmineral chemistryolivinephlogopitemonticelliteperovskiteBaluchistanPakistan
Type
Mineralogy and Petrology
Information
Mineralogical Magazine , Volume 54 , Issue 377 , December 1990 , pp. 537 - 546
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ahmed, Z. (1982) Mineral. Mag. 45, 167-78.CrossRefGoogle Scholar
Ahmed, Z. (1986) In Chromites, UNESCO's 1GCP 197 Project (Petraschek, W., Karamata, S., Kravchenko, G. G., Johan, Z., Economou, M. and Engin, T., eds.). Theophrastus Publications, Athens, 241-62.Google Scholar
Ahmed, Z. and Hall, A. (1981) Chem, Erd. 40, 209-39.Google Scholar
Allemann, F. (1979) In Geodynamics of Pakistan (Farah, A. and DeJong, K. A., eds.). Geol. Surv. Pakistan, Quetta, 215-42.Google Scholar
Arai, S. (1986) J. Geol. 94, 436-44.CrossRefGoogle Scholar
Bence, A. E. and Albee, A. L. (1968). J. Geol. 76, 383-403.CrossRefGoogle Scholar
Boctor, N. Z. and Boyd, F. R. (1982) Am. Mineral. 67, 917-25.Google Scholar
Dawson, J. B. (1981) Mineral. Mag. 44, 1-18.CrossRefGoogle Scholar
Deer, W. A., Howie, R. A. and Zussman, J. (1962a) Rock-Forming Minerals, Longman, London.Google Scholar
Deer, W. A., Howie, R. A. and Zussman, J. (1962b) Ibid. 5.Google Scholar
Deer, W. A., Howie, R. A. and Zussman, J. (1978). Ibid. 2A.Google Scholar
Deer, W. A., Howie, R. A. and Zussman, J. (1982) Ibid. IA.Google Scholar
Farmer, G. L. and Boettcher, A. L. (1981) Am. Mineral. 66, 1154-63.Google Scholar
Ferguson, J. (1980) Mineral. Mag. 43, 727-31.CrossRefGoogle Scholar
Fleet, M. E., MacRae, N. D. and Herzberg, C. T. (1977) Contrib. Mineral. Petrol. 65, 191-8.CrossRefGoogle Scholar
Franks, P. C. (1959) Am. Mineral. 44, 1082-6.Google Scholar
Haggerty, S. E. (1976) In Oxide Minerals (Rumble, D., ed.) Min. Soc. Amer. Short Course Notes 3, HG 101–277.Google Scholar
Hall, A. (1987) Igneous Petrology. Longman Scientific & Technical, England.Google Scholar
Heinrich, E. W. (1966) The Geology of Carbonatites. Rand McNally & Co., Chicago.Google Scholar
Hubbard, F. H. and McGill, R. J. (1982) Mineral. Mag. 46, 501-2.CrossRefGoogle Scholar
Hunting Survey Corporation Ltd. (1960) Reconnaissance Geology of Part of West Pakistan. Colombo Plan Coop. Proj., Toronto, Canada.Google Scholar
Kresten, P. and Paul, D. K. (1976) Can. Mineral. 14, 48-90.Google Scholar
Kruger, F.J., (1982) Mineral. Mag. 46, 274-6.CrossRefGoogle Scholar
McIver, J. R. and Ferguson, J. (1979) In Kimberlites, Diatremes and Diamonds: their Geology, Petrology and Geochemistry (Boyd, F. R. and Meyer, H. O. A. eds.). Proc. 2nd Internat. Kimberlite Conf. 1, 111-28.CrossRefGoogle Scholar
Meagher, E. P. (1980) In Orthosilicates (Ribbe, P.H., ed.) Rev. Mineral. 5, Min. Soc. Amer., Washington, D.C., 25–66.Google Scholar
Mitchell, R. H. (1972) Am. Mineral. 57, 1748-53.Google Scholar
Mitchell, R. H. and Putnis, A. (1988) Can. Mineral. 26, 991-7.Google Scholar
Moore, A. E. (1983) Mineral Mag. 47, 404-6.CrossRefGoogle Scholar
Nixon, P. H., Mitchell, R. H., and Rogers, N. W. (1980) Mineral. Mag. 43, 587-96.CrossRefGoogle Scholar
Onuki, H., Yoshida, T., and Nedachi, M. (1981) J. Japan Assoc, Mineral, Petrol. Econ. Geol. 76(7), 23–47.Google Scholar
Onuki, H., Akasaka, M., Yoshida, T. and Nedachi, M. (1982) Contrib. Mineral. Petrol. 80, 183-8.CrossRefGoogle Scholar
Papike, J. J. (1987) Rev. Geophys. 25, 1483-526.CrossRefGoogle Scholar
Pasteris, J. D. (1982) Ann. Mineral. 67, 244-50.Google Scholar
Platt, R. G. and Mitchell, R. H. (1982) Ibid. 67, 907-16.Google Scholar
Reed, S. J. B. and Ware, N. G. (1975) J. Petrol. 16, 499-519.CrossRefGoogle Scholar
Salpas, P. A., Taylor, L. A. and Shervais, J. W. (1986) J. Geol. 94, 891-901.CrossRefGoogle Scholar
Scott-Smith, B. H. S. and Skinner, E. M. W. (1984) In Kimberlites 1: Kimberlites and Related Rocks (Kornprobst, J., ed.). Elsevier, 255-83.CrossRefGoogle Scholar
Scott-Smith, B. H. S. and Skinner, E. M. W. and Clement, C.R. (1983) Mineral Mag. 47, 75-8.CrossRefGoogle Scholar
Scott-Smith, B. H. S., Danchin, R.V., Harris, J.W. and Strecke, K.J. (1984) In Kimbertites t: Kimberlites and Related Rocks (Kornprobst, J., ed.). Elsevier, 121-42.CrossRefGoogle Scholar
Stracke, K.J., Ferguson, J. and Black, L.P. (1979) In Kimberlites, Diatremes and Diamonds: Their Geology, Petrology and Geochemistry (Boyd, F. R. and Meyer, H. O. A., eds.) Proc. 2nd. Internat. Kimberlite Conf., Amer., Geophys. Un., Washington, D.C., 71–91.CrossRefGoogle Scholar
Tompkins, L.A. and Haggerty, S.E. (1985) Contrib. Mineral. Petrol. 91, 245-63.CrossRefGoogle Scholar
Watson, K. D. (1955) Am. Mineral. 40, 565.Google Scholar
Yamamoto, M. (1983) J. Fac. Sci. Hokkaido Univ., Japan, Ser. IV, 20, 135-43.Google Scholar