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Roof modification of a high level granite, Jos-Bukuru Younger Granite Ring Complex, Nigeria

Published online by Cambridge University Press:  01 May 2009

P. K. Webb
Affiliation:
Department of GeologyAhmadu Bello UniversityZariaNigeria

Summary

The Rayfield-Gona granite of the Jos Plateau, Nigeria, formerly regarded as an independent intrusive body, is now thought to be a roof facies of the Ngell granite. This explains several phenomena, such as the gradational contact between the two, and the distinctive mineral assemblage of the former.

Type
Articles
Copyright
Copyright © Cambridge University Press 1974

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References

Buchanan, M. S., MacLeod, W. N. & Turner, D. C. 1971. With contributions by Berridge N. G. and Black R. The Geology of the Jos Plateau. Vol. 2. Younger Granite Complexes. Bull. geol. Surv. Nigeria 32.Google Scholar
MacLeod, W. N., Turner, D. C. & Wright, E. P. 1971. The Geology of the Jos Plateau. Vol. 1. General Geology. Bull. geol. Surv. Nigeria 32.Google Scholar
Turner, D. C. & Webb, P. K. 1973. The Daura Igneous Complex, Northern Nigeria; a link between the Younger Granite districts of Nigeria and Southern Niger. J. geol. Soc. (in the Press).Google Scholar
Williams, F. A., Meehan, J. A., Paulo, K. L., John, T. U. & Rushton, H. G. 1956. Economic geology of the decomposed columbite bearing granites, Jos Plateau, Nigeria. Econ. Geol. 51 (4), 303–32.CrossRefGoogle Scholar