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An Occurrence of Orbicular Structure, of Metasomatic Origin, in the Gold Coast.

Published online by Cambridge University Press:  01 May 2009

C. E. B. Conybeare
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Abstract

Orbicules consisting of cores of pargasite and epidote with rims of plagioclase, in a matrix composed mainly of pargasite, plagioclase, and epidote, are described and attributed to the metasomatic action of alkaline fluids permeating crushed amphibolite.

Type
Articles
Information
Geological Magazine , Volume 88 , Issue 2 , April 1951 , pp. 145 - 147
Copyright
Copyright © Cambridge University Press 1951

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References

REFERENCES

Bowen, N. L., 1928. The Evolution of the Igneous Rocks. Princeton Univ. Press.Google Scholar
Hatch, F. H., Wells, A. K., and Wells, M. K., 1949. The Petrology of the Igneous Rocks (10th Ed.). London.Google Scholar
Junner, N. R., 1940. Geology of the Gold Coast and Western Togoland. Gold Coast Geological Survey, Bull. 11.Google Scholar