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Some Large Felspar Augen from near Ilorin Town, Nigeria

Published online by Cambridge University Press:  01 May 2009

Abstract

Large augen, composed principally of single crystals of potash felspar, are sporadically distributed in certain banded gneisses. It is inferred from structural and textural evidence that the augen have formed by metasomatic processes.

Type
Articles
Copyright
Copyright © Cambridge University Press 1950

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References

LIST OF WORKS TO WHICH REFERENCE IS MADE

Anderson, A. L., and Hammerand, V., 1940. Contact and Endomorphic Phenomena Associated with a Part of the Idaho Batholith. Journ. Geol., xlviii, 561589.Google Scholar
Anderson, G. H., 1934. Pseudo-Cataclastic Texture of Replacement Origin in Igneous Rocks. Amer. Min., xix, 185193.Google Scholar
Backlund, H. G., 1936. Der “Magmaaufsteig” in Faltengebirgen. Bull. Comm. Géol. Finlande, No. 115, 293347.Google Scholar
Backlund, H. G., 1938. The Problem of the Rapakivi Granites. Journ. Geol., xlvi, 339396.CrossRefGoogle Scholar
Harker, A., 1932. Metamorphism, London.Google Scholar
King, B. C., and De Swardt, A. M. J., 1949. The Geology of the Osi Area, Ilorin Province. Geol. Surv. Nigeria, Bull. No. 20.Google Scholar
Oulianoff, N., 1932. Une contribution à la connaissance des gneiss oeillés. Eclog. Geol. Helv., xxv, 23–4.Google Scholar
Peach, B. N., Horne, J., and others, 1907. The Geological Structure of the North-West Highlands. Mem. Geol. Surv. Gt. Brit.Google Scholar
Read, H. H., 1931. The Geology of Central Sutherland. Mem. Geol. Surv. Gt. Brit.Google Scholar
Sederholm, J. J., 1916. On Synantectic Minerals and Related Phenomena. Bull. Comm. Géol. Finlande, No. 48.Google Scholar
Wegmann, C. E., 1938. Geological Investigations in Southern Greenland: Pt. I. Medd. om Grønland, cxiii.Google Scholar