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The role of fractional crystallization in the formation of granitic and intermediate rocks of the Beinn Chaisgidle Centre, Mull, Scotland

Published online by Cambridge University Press:  05 July 2018

J. N. Walsh  and
E. Clarke
J. N. Walsh
Affiliation:
Department of Geology, King's College, Strand, London WC2R 2LS
E. Clarke
Affiliation:
Department of Geology, King's College, Strand, London WC2R 2LS
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Abstract

Major and trace element data are presented for the basic, intermediate, and acid rocks of the Beinn Chaisgidle Centre of the Tertiary igneous complex on the Isle of Mull. The variation in the bulk chemical composition, the iron enrichment trend in the clinopyroxenes, the systematic decrease in concentrations of the transition metal cations, and the increase in the incompatible elements suggest that the magma from which these rocks formed underwent crystal fractionation. The rocks show a coherence of rare earth element patterns for all the rocks in the sequence, and there is a progressive increase in negative Eu anomaly with increasing silica content.

Type
Research Article
Information
Mineralogical Magazine , Volume 45 , Issue 337 , 1982 , pp. 247 - 255
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

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References

Atkins, F. B. (1969) J. Petrol. 10, 222-49.CrossRefGoogle Scholar
Bailey, et al. (1924) The Tertiary and post Tertiary geology of Mull, Loch Aline and Oban. Mere. geol. Surv. UK.Google Scholar
Bell, J. D. (1966) Trans. R. Soc. Edin. 66, 307-43.CrossRefGoogle Scholar
Brown, G. M. (1957) Mineral. Mag. 31, 511-43.Google Scholar
Brown, G. M. (1963) Ibid. 33, 533-62.Google Scholar
Brown, G. M. and Vincent, E. A. (1963) J. Petrol. 4, 174-97.CrossRefGoogle Scholar
Burns, R. G. (1970) Mineralogical Applications of Crystalfield Theory. Camb. Univ. Press.Google Scholar
Burns, R. G. and Fyfe, W. S. (1966) Chem. Geol. 1, 49-56.CrossRefGoogle Scholar
Carmichael, I. S. E. (1960) J. Petrol. 1, 309-36.Google Scholar
Carmichael, I. S. E. (1964) Ibid. 5, 435-60.Google Scholar
Carmichael, I. S. E., Turner, F. J., and Verhoogen, J. (1974) Igneous Petrology. McGraw-Hill.Google Scholar
Carter, S. R., Evensen, N. M., Hamilton, P. J., and O'Nions, R. K. (1978) Science 202, 743-7.CrossRefGoogle ScholarPubMed
Curtis, C. D. (1963) Geochim. Cosmochim. Acta 28, 389-403.CrossRefGoogle Scholar
Dunham, A. C. (1967) Q. J. Geol. Soc. Lond. 123, 327-52CrossRefGoogle Scholar
Henderson, P. (1979) Mineral. Mag. 43, 399-404.CrossRefGoogle Scholar
Henderson, P. and Dale, I. M. (1968) Chem. Geol. 5, 267-74.CrossRefGoogle Scholar
Jensen, B. B. (1973) Geochim. Cosmochim. Acta, 37, 2227-42.CrossRefGoogle Scholar
Konda, T. (1970) Contrib. Mineral. Petrol. 29, 338-44.CrossRefGoogle Scholar
Le Bas, M. J. (1967) Proc. R. Irish Acad. 65 (Sect. B.), 325-38.Google Scholar
Meighan, I. G. (1979) Bull. Geol. Surv. G.B. No. 70,10-22.Google Scholar
Moorbath, S., and Bell, J. D. (1965) J. Petrol. 6, 37-66.CrossRefGoogle Scholar
Muir, I. D. (1951) Mineral. Ma9. 29, 690-714.Google Scholar
Nakamura, N. (1974) Geochim. Cosmochim. Acta 38, 575-775.CrossRefGoogle Scholar
Pankhurst, R. J., Walsh, J. N., Beckinsale, R. D., and Skelhorn, R. R. (1978) Earth Planet. Sci. Lett. 38, 355-63.CrossRefGoogle Scholar
Skelhorn, R. R., Macdougall, J. D. S., and Longland, P. J. N. (1969) Geol. Ass. (Lond.) Guide No. 20.Google Scholar
Smith, C. H., and Kapp, H. E. (1963) Mineral. Soc. Am. Special Paper No. 1, 30-5.Google Scholar
Streckheisen, A. (1976) Neues Jahrb. Mineral. Monatsh. 115.Google Scholar
Thompson, R. N. (1969) Q. J. Geol. Soc. Lond. 124, 349-85.CrossRefGoogle Scholar
Thorpe, R. S., Potts, P. J., and Saare, M. B. (1977) Earth Planet. Sci. Lett. 36, 111-20.CrossRefGoogle Scholar
Wager, L. R. (1956) Geochim. Cosmochim. Acta 9, 217-48.CrossRefGoogle Scholar
Wager, L. R. and Brown, G. M. (1968) Layered igneous rocks. Edinburgh, Oliver and Boyd, 588 pp.Google Scholar
Walsh, J. N., and Howie, R. A. (1980) Mineral. Mag. 43, 967-74.CrossRefGoogle Scholar
Walsh, J. N., Beckinsale, R. D., Skelhorn, R. R., and Thorpe, R. S. (1979) Contrib. Mineral. Petrol. 71, 99-116.CrossRefGoogle Scholar
Walsh, J. N., Buckley, F., and Barker, J. (1981) Chem. Geol. (In press.)Google Scholar
Whittaker, E. J. W. (1978) J. Non-Crystal. Solids 28, 293-304.CrossRefGoogle Scholar
Yoder, H. S., ed. (1979) The evolution of the igneous rocks. Princeton Univ. Press.Google Scholar