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Intrusive Tholeiites of the Western Cuillin, Isle of Skye

Published online by Cambridge University Press:  01 May 2009

Robert Hutchison
Affiliation:
Geological Survey, P.M.B. 2007, Kaduna, Nigeria.

Abstract

Certain amygdaloidal tholeiitic rocks and associated volcanic breccias are intrusive into the Cuillin gabbro (sensu lato) and are not xenolithic as Harker believed. Six tholeiites have been analysed and their compositions compared with the non-porphyritic central magma type of Mull. It is postulated that the ultrabasic rocks close to some tholeiitic intrusions were contaminated by the tholeiitic magma.

Type
Articles
Copyright
Copyright © Cambridge University Press 1966

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References

REFERENCES

Almond, D. C., 1963. Metamorphism of Tertiary Lavas in Strathaird, Skye. Trans. roy. Soc. Edin., 65, 413–34.Google Scholar
Bailey, E. B., 1952. So-called amygdaloidal gabbro, Skye. Geol. Mag., 89, 369–75.CrossRefGoogle Scholar
Deer, W. A., Howie, R. A., and Zussman, J., 1962. Rock-Forming Minerals, vol. 2, Longmans, London.Google Scholar
Harker, A., 1904. The Tertiary igneous rocks of Skye. Mem. geol. Surv. U.K.Google Scholar
Harker, A., 1932. Metamorphism. Methuen and Co., London.Google Scholar
Hess, H. H., 1949. Chemical composition and optical properties of common clinopyroxenes, part 1. Am. Miner., 34, 621–66.Google Scholar
Le Bas, M. J., 1955. Magmatic and amygdaloidal plagioclases. Geol. Mag., 92, 291–96.CrossRefGoogle Scholar
MacGregor, A. G., 1931. Clouded felspars and thermal metamorphism. Mineralog. Mag., 22, 524–38.Google Scholar
Mercy, E. L. P., 1956. The accuracy and precision of the “rapid methods of analysis”. Geochim. et Cosmochim. Acta, 9, 161–73.CrossRefGoogle Scholar
Poldevaart, A., and Gilkey, A. K., 1954. On clouded plagioclase. Am. Miner., 39, 7591.Google Scholar
Reynolds, D. L., 1952. So-called amygdaloidal gabbro, Skye: Comments on a paper by E. B. Bailey. Geol. Mag., 89, 376–79.CrossRefGoogle Scholar
Riley, J. P., 1958. The rapid analysis of silicate rocks and minerals. Anal. Chim. Acta., 19, 413–28.CrossRefGoogle Scholar
Turner, F. J., and Verhoogen, J., 1960. Igneous and Metamorphic Petrology. McGraw-Hill, New York.Google Scholar
Wager, L. R., 1956. A chemical definition of fractionation stages as a basis for comparison of Hawaiian, Hebridean and other basic lavas. Geochim. et Cosmochim. Acta, 9, 217–48.CrossRefGoogle Scholar
Weedon, D. S., 1961. Basic igneous rocks of the Southern Cuillin, Isle of Skye. Trans. geol. Soc. Glasgow, 24, 190212.Google Scholar