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A Local Potassic Modification of the Ballachulish Granodiorite

Published online by Cambridge University Press:  01 May 2009

I. D. Muir
I. D. Muir
Affiliation:
Department of Mineralogy and Petrology, University of Cambridge.
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Abstract

The development of potash-rich pyroxene-bearing rocks around inclusions derived from the Appin limestone is associated with the transfer of magmatic silicon, aluminium, iron, and sodium. Calcium lost to the magma, by combining with further silicon, aluminium, and sodium to form a marginal zone rich in plagioclase, has left the magma enriched in potassium.

Type
Articles
Information
Geological Magazine , Volume 90 , Issue 3 , June 1953 , pp. 182 - 192
Copyright
Copyright © Cambridge University Press 1953

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References

REFERENCES

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