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From Dolerite to Diorite: Older Granite Activity near Ellon, Aberdeenshire

Published online by Cambridge University Press:  01 May 2009

O. C. Farquhar
Affiliation:
Department of Geology and Mineralogy, Marischal College, Aberdeen.

Abstract

Hornblende-schists, probably intruded as dolerite sills, have been permeated by trondhjemitic material. Conversion to rocks of dioritic aspect is the end-stage of this process, but the intermediate stages are more common. The conversion has been effected with little displacement so that all varieties can be observed in their correct sequence.

Type
Articles
Copyright
Copyright © Cambridge University Press 1953

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References

REFERENCES

Cheng, Yu-chi, 1942. A hornblendic complex, including appinitic types, in the migmatite area of North Sutherland, Scotland. Proc. Geol. Ass., liii, 6785.CrossRefGoogle Scholar
Deer, W. A., 1953. The diorites and associated rocks of the Glen Tilt Complex. Geol. Mag., xc, 2735.CrossRefGoogle Scholar
Harry, W. T., 1951. The migmatites and feldspar-porphyroblast rock of Glen Dessarry, Inverness-shire. Quart. Journ. Geol. Soc., cvii, 137158.CrossRefGoogle Scholar
King, B. C., 1952. Structure and igneous activity in the Creag Strollamus area of Skye. Trans. Roy. Soc. Edin., lxii, 357402.Google Scholar
Read, H. H., 1923A. The petrology of the Arnage district in Aberdeenshire: a study of assimilation. Quart. Journ. Geol. Soc., lxxix, 446486.CrossRefGoogle Scholar
Read, H. H., 1923B. The geology of Banff, Huntly and Turriff. Mem. Geol. Surv. Scotland.Google Scholar
Read, H. H., 1927. The igneous and metamorphic history of Cromar, Deeside, Aberdeenshire. Trans. Roy. Soc. Edin., lv, 317353.CrossRefGoogle Scholar
Read, H. H., 1951. Metamorphism and granitization. Geol. Soc. South Africa, liv, annexure, 127.Google Scholar
Read, H. H., 1952A. Metamorphism and migmatization in the Ythan Valley, Aberdeenshire. Trans. Edin. Geol. Soc., xv, 265279.CrossRefGoogle Scholar
Read, H. H., and Farquhar, O. C., 1952B. The geology of the Arnage district, Aberdeenshire: a reinterpretation. Quart. Journ. Geol. Soc., cvii, 423440.Google Scholar
Tyrrell, G. W., 1928. The geology of Arran. Mem. Geol. Surv. Scotland.Google Scholar
Wilson, J. S. G., 1886. North-east Aberdeenshire with detached portions of Banffshire. Mem. Geol. Surv. Scotland.Google Scholar