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Modal Variation and the Form of the Beinn an Dubhaich Granite, Skye

Published online by Cambridge University Press:  01 May 2009

E. H. Timothy Whitten
E. H. Timothy Whitten
Affiliation:
Department of Geology, Northwestern University, Evanston, Illinois, U.S.A.
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Abstract

Regional variations in modal analyses of the Chandos Lake pluton (Ontario) and the Beinn an Dubhaich granite are compared. Trend surface analysis maps for the latter area show a southwest “grain” parallel to the axis about which King (1960) suggested the sheet of granite is folded. The modal data thus appear to confirm King's hypothesis, and to indicate a more mafic base and increase in quartz content upwards through the sheet. The value to petrogenesis of quantitative variation studies of rock masses is briefly discussed.

Type
Articles
Information
Geological Magazine , Volume 98 , Issue 6 , December 1961 , pp. 467 - 472
Copyright
Copyright © Cambridge University Press 1961

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References

REFERENCES

Harker, A., 1904. The Tertiary igneous rocks of Skye. Mem. geol. Surv. U.K.Google Scholar
King, B. C., 1960. The form of the Beinn an Dubhaich granite, Skye. Geol. Mag., 97, 326–333.CrossRefGoogle Scholar
Krumbein, W. C., 1959. Trend surface analysis of contour-type maps with irregular control-point spacing: J. Geophys. Res., 64, 823–834.CrossRefGoogle Scholar
McIntyre, D. B., 1950. The petrogenesis of the northwest part of the Loch Doon plutonic complex, Galloway: Abstr. Proc. geol. Soc. Lond., 1457, 31–38.Google Scholar
Saha, A. K., 1959. Emplacement of three granitic plutons in southeastern Ontario, Canada, Bull. geol. Soc. Amer., 70, 1293–1326.CrossRefGoogle Scholar
Saha, A. K., 1957. Ph.D thesis, Univ. Toronto.Google Scholar
Tuttle, O. F., and Bowen, N. L., 1958. Origin of granite in light of experimental studies. Mem. geol. Soc. Amer., 74.Google Scholar
Whitten, E. H. T., 1959. Composition trends in a granite: modal variation and ghost-stratigraphy in part of the Donegal granite, Eire. J. Geophys. Res., 44, 835–848.CrossRefGoogle Scholar
Whitten, E. H. T., 1960A. Quantitative evidence of palimpsestic ghost-stratigraphy from modal analysis of a granitic complex. Internat. Geol. Congr. XXI Norden, Pt. 14, 182–193.Google Scholar
Written, E. H. T., 1960B. Average composition of granites, the genesis of tektites, and petrogenesis. Nature, 187, 867–868.CrossRefGoogle Scholar
Whitten, E. H. T., 1960C. Systematic quantitative areal variation of six granitic massifs. Bull. geol. Soc. Amer. 71, 2002–2003.Google Scholar
Whitten, E. H. T., 1961A. Quantitative distribution of major and trace components in rock masses. Amer. Inst. min. (metall.) Engrs. Symposium Preprint 61L17, 19 pp. (In press: Trans. Amer. Inst. min. (metall.) Engrs.Google Scholar
Whitten, E. H. T., 1961B. Systematic quantitative areal variation in five granitic massifs from India, Canada, and Great Britain. J. Geol. (In press.)CrossRefGoogle Scholar