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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

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