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Rare earth chemistry of perovskite group minerals from the Gardiner Complex, East Greenland

Published online by Cambridge University Press:  05 July 2018

Linda S. Campbell
Affiliation:
The Natural History Museum, Cromwell Road, London SW7 5BD, UK
Paul Henderson
Affiliation:
The Natural History Museum, Cromwell Road, London SW7 5BD, UK
Frances Wall
Affiliation:
The Natural History Museum, Cromwell Road, London SW7 5BD, UK
Troels F. D. Nielsen
Affiliation:
Øster Voldgade 10, 1350 Copenhagen K, Denmark

Abstract

Perovskite group minerals, general formula ABX3, from the intrusive ultramafic alkaline Gardiner Complex, East Greenland, range from almost pure CaTiO3 (perovskite, sensu stricto), to the rare earth element (REE) variety, loparite-(Ce). Chemical zonation in the perovskites (sensu lato), is described by the substitutions 2Ca2+ = (Na+ + REE3+) on the A-site and 2Ti4+ = (Fe3+ + Nb5+) on the B-site. Other trace elements detected include Th, Sr, Al, Si, Zr, Ta and Sn. Excellent agreement was found between the determinations of the REE by electron microprobe and neutron activation analysis. Chondrite-normalized REE patterns display enrichment in the light rare earths for perovskite, loparite, apatite, melilite and diopside. Mean perovskite/apatite partition coefficients from four of the Gardiner rocks were calculated as La = 10.4, Ce = 13.8, Nd = 13.9, Sm = 9.9, Eu = 7.7, Gd = 5.2, Tb = 5.6, Tm = 5.5, Yb = 2.7 and Lu = 1.6, indicating that perovskite concentrates all REE to a much greater extent than apatite. Light-REE enrichment occurs in both perovskite and apatite.

Type
Mineralogy
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1997

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Footnotes

*

Present address: School of Geological Sciences, Kingston University, Penrhyn Road, Kingston upon Thames, Surrey KTI 2EE, UK.

References

Boctor, N.Z. and Yoder, Jr., H.S. (1982) Distribution of rare earth elements in perovskite from melilite-bearing rocks. Yearbook of the Carnegie Institution, Washington, 81, 369-71.Google Scholar
Dawson, J.B. (1994) Quaternary kimberlitic volcanism on the Tanzania Craton. Contrib. Mineral. Petrol., 116, 473-85.CrossRefGoogle Scholar
Dawson, J.B., Smith, J.V. and Steele, I.M. (1994) Trace-element distribution between coexisting perovskite, apatite and titanite from Oldoinyo Lengai, Tanzania. Chem. Geol., 117, 285-90.CrossRefGoogle Scholar
Frisch, W. and Keusen, H. (1977) The Gardiner Intrusion, an ultramafic complex at Kangerdlugssuaq, east Greenland. Grønlands Geologiske Undersøgelse Bulletin, 122, 62.Google Scholar
Gleadow, A.J.W. and Brooks, C.K. (1979) Fission track dating, thermal histories and tectonics of igneous intrusions in East Greenland. Contrib. Mineral. Petrol., 71, 45-60.CrossRefGoogle Scholar
Johnsen, O., Petersen, O. V. and Medenbach, O. (1985) The Gardiner Complex, a new locality in Greenland. Mineral. Record, 16, 485-94.Google Scholar
Mitchell, R.H. (1996) Perovskites: A revised classification scheme for an important rare earth element host in alkaline rocks. In Rare Earth Minerals. Chemistry, Origin and Ore Deposits (Jones, A.P., Wall, F. and Williams, C.T.W., Eds.) Mineralogical Society Series, 7, 41—76. Chapman and Hall.Google Scholar
Muir, I.J., Metson, J.B. and Bancroft, G.M. (1984) (57)Fe Mössbauer spectra of perovskite and titanite. Canad. Mineral., 22, 689-94.Google Scholar
Nagasawa, H. (1970) Rare earth concentrations in zircons and apatites and their host dacites and granites. Earth Planet. Sci. Lett., 9, 359-64.CrossRefGoogle Scholar
Nagasawa, H. and Schnetzler, C.C. (1971) Partitioning of rare earth, alkali and alkaline earth elements between phenocrysts and acidic igneous magma. Geochim. Cosmochim. Acta, 35, 953—68.CrossRefGoogle Scholar
Nickel, E.H. and McAdam, R.C. (1963) Niobian perovskite from Oka, Quebec; A new classification for minerals of the perovskite group. Canad. Mineral., 7, 683-97.Google Scholar
Nielsen, T.F.D. (1979) The occurrence and formation of Ti-aegirines in peralkaline syenites. An example from the Tertiary ultramafic alkaline Gardiner complex, East Greenland. Contrib. Mineral. Petrol., 69, 235-44.CrossRefGoogle Scholar
Nielsen, T.F.D. (1980) The petrology of a melilitolite, melteigite, carbonatite and syenite ring dike system, in the Gardiner complex, East Greenland. Lithos, 13, 181-97.CrossRefGoogle Scholar
Nielsen, T.F.D. (1981) The ultramafic cumulate series, Gardiner Complex, East Greenland; cumulates in a shallow level magma chamber of a nephelinitic volcano. Contrib. Mineral. Petrol., 76, 60—72.CrossRefGoogle Scholar
Nielsen, T.F.D. (1994) Alkaline dyke swarms of the Gardiner Complex and the origin of ultramafic alkaline complexes. Geochemistry International, 31, 37-56.Google Scholar
Nielsen, T.F.D. and Holm, P.M. (1993) Nd and Sr isotope compositions from the Gardiner Complex, East Greenland Tertiary igneous province. Bull. Geol. Soc. Denmark, 40, 280-7.Google Scholar
Nielsen, T.F.D., Solovova, I.P. and Veksler, I.V. (in press) Parental melts for plutonic melilitolites and alkaline carbonatites: Evidence from crystalline melt inclusions in melilitolites from the Gardiner complex, East Greenland. Contrib. Mineral. Petrol. Google Scholar
Onuma, N., Ninomiya, S. and Nagasawa, H. (1981) Mineral/groundmass partition coefficients for nephe-line, melilite, clinopyroxene and perovskite in melilite-nepheline basalt, Nyiragongo, Zaire. Geochem. J., 15, 221-8.CrossRefGoogle Scholar
Simon, S.B., Kuehner, S.M., Davis, A.M., Grossman, L., Johnson, M.L., and Burnett, D.S. (1994) Experimental studies of trace element partitioning in Ca,Al-rich compositions: Anorthite and perovskite. Geochim. Cosmochim. Acta, 58, 1507—23.CrossRefGoogle Scholar
Smith, A.L. (1970) Sphene, perovskite and coexisting Fe-Ti oxide minerals. Amer. Mineral., 55, 264—9.Google Scholar
Veksler, I.V. and Teptelev, M.P. (1990) Conditions for crystallization and concentration of perovskite-type minerals in alkaline magmas. Lithos, 26, 177—89.CrossRefGoogle Scholar
Wakita, H., Rey, P. and Schmitt, R.A. (1971) Abundances of the 14 rare-earth elements and 12 other trace elements in Apollo 12 samples: five igneous and one breccia rocks and four soils. Proc. Second Lunar Sci. Conf., 2, The M.I.T. Press, 1319-29.Google Scholar
Watson, E.B. and Green, T.H. (1981) Apatite/liquid partition coefficients for the rare earth elements and strontium. Earth Planet. Sci. Lett., 56, 405-21.CrossRefGoogle Scholar
Williams, C.T. and Wall, F. (1991) An INAA scheme for the routine determination of 27 elements in geological and archaeological samples. British Museum Occasional Papers: Neutron Activation and Plasma Emission Spectrometric Analysis in Archaeology, Techniques and Applications. 82, 105-19.Google Scholar
Wilson, M., Rosenbaum, J.M. and Dunworth, E.A. (1995) Melilitites: partial melts of the thermal boundary layer. Contrib. Mineral. Petrol., 119, 181-96.CrossRefGoogle Scholar
Wörner, G., Beusen, J.-M., Duchateau, N., Gijbels, R. and Schmincke, H.-U. (1983) Trace element abundances and mineral/melt distribution coefficients in phonolites from the Laacher See Volcano (Germany). Contrib. Mineral. Petrol., 84, 152-73.Google Scholar