Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-23T16:06:02.809Z Has data issue: false hasContentIssue false

On the beerbachites from Freetown, Sierra Leone

Published online by Cambridge University Press:  01 May 2009

A. C. Umeji
Affiliation:
Department of GeologyUniversity of NigeriaNsukka, Nigeria
Rights & Permissions [Opens in a new window]

Abstract

Image of the first page of this content. For PDF version, please use the ‘Save PDF’ preceeding this image.'
Type
Correspondence
Copyright
Copyright © Cambridge University Press 1985

References

Ashworth, J. R. & Chinner, G. A. 1978. Coexisting garnet and cordierite in migmatites from the Scottish Caledonides. Contributions to Mineralogy and Petrology 65, 379–94.CrossRefGoogle Scholar
Baker, C. O. & Bott, M. H. P. 1961. A gravity survey over the Freetown basic complex of Sierra Leone. Overseas Geology and Mineral Resources 8 (3), 260–78.Google Scholar
Barth, T. F. W., Correns, W. C. & Eskola, P. 1939. Die Entstehung der Gesteine. Berlin: Springer-Verlag.Google Scholar
Bohlen, S. R. & Boettcher, A. L. 1981. Experimental investigations and geological applications of ortho-pyroxene geobarometry. American Mineralogist 66, 951–64.Google Scholar
Briden, J. C., Henthorn, D. I. & Rex, D. C. 1971. Palaeomagnetic and radiometric evidence for the age of the Freetown igneous complex, Sierra Leone. Earth and Planetary Sciences Letters 12, 385–91.Google Scholar
Chelius, C. 1892. Das Granitmassiv des Melibocus und seins Ganggesteine. Notizblatt der Vereinigung Erdkunde Darmstadt, Series 4, part 13, 113.Google Scholar
Dalrymple, G. B., Gromme, C. S. & White, R. W. 1975. Potassium-argon age and paleomagnetism of diabase dykes in Liberia: initiation of central Atlantic rifting. Bulletin of the Geological Society of America 86, 399441.2.0.CO;2>CrossRefGoogle Scholar
Dixey, F. 1922. The norite of Sierra Leone. Quarterly Journal of the Geological Society of London 78, 299343.Google Scholar
Geological Survey of Sierra Leone. 1956. Progress report on SLBH near Samueltown. Annual Report for 1956.Google Scholar
Geological Survey of Sierra Leone. 1957. Progress report on SLBH near Rokell. Annual Report for 1957.Google Scholar
Grew, E. S. 1980. Sillimanite and ilmenite from high-grade metamorphic rocks of Antarctica and other areas. Journal of Petrology 21, 3968.CrossRefGoogle Scholar
Hurley, P. M., Leo, G. W., White, R. W. & Fairbairn, H. W. 1971. Liberian age province (about 2700 m.y.) and adjacent provinces in Liberia and Sierra Leone. Bulletin of the Geological Society of America 82, 3483–90.CrossRefGoogle Scholar
Jaeger, J. C. 1957. The temperature in the neighbourhood of a cooling intrusive sheet. American Journal of Science 255, 306–18.Google Scholar
Jaeger, J. C. 1968. Cooling and solidification of igneous rocks. In Basalts: The Poldervaart Treastise on Rocks of Basaltic Composition, vol. 2 (ed. Hess, H. H.), pp. 503–36. Wiley Interscience.Google Scholar
Junner, N. R. 1929. The norite of Sierra Leone, British West Africa. Report of the 15th Session of the International Geological Congress, South Africa 2, 417–33.Google Scholar
Kaye, C. A. 1983. Discovery of a Late Triassic basin north of Boston and some implications as to post-Paleozoic tectonics in northeastern Massachusetts. American Journal of Science 283, 1060–79.Google Scholar
Kennedy, W. Q. 1964. The structural differentiation of Africa in the Pan-African (± 500 m.y.) tectonic episode. Annual Report of the Research Institute for African Geology, University of Leeds 8, 48–9.Google Scholar
Klein, G. De V. 1969. Deposition of Triassic sedimentary rocks in separate basins, eastern North America. Bulletin of the Geological Society of America. 80, 1825–32.CrossRefGoogle Scholar
Klemm, G. 1927. Uber die sog. ‘Gabbroaplite (Beerbachite)’ des Odenwaldes. Notizblatt der Vereinigung Erdkunde Hessische Geologische Landesamt, Darmstadt V. Folge, H. 9. 111–5.Google Scholar
Krause, D. C. 1963. Seaward extension and origin of the Freetown layered basic complex of Sierra Leone. Nature 200, 1280–1.CrossRefGoogle Scholar
Krogh, E. J. 1982. Metamorphic evolution of Norwegian country-rock eclogites, as deduced from mineral inclusions and compositional zoning in garnets. Lithos 15, 305–21.CrossRefGoogle Scholar
Matthes, S. & Schubert, W. 1971. Der original Beerbachit in Odenwald, ein Amphibolit-Hornfels in Pyroxen-Hornfels-fazies. Contributions to Mineralogy and Petrology 33, 6286.Google Scholar
Miyashiro, A. 1961. Evolution of metamorphic belts. Journal of Petrology 2, 277311.CrossRefGoogle Scholar
Perkins III, D. & Newton, R. C. 1981. Charnockite geobarometers based on coexisting garnet-pyroxene-plagioclase-quartz. Nature 292, 144–8.Google Scholar
Pollett, J. D. 1951. The geology and mineral resources of Sierra Leone. Colonial Geology and Mineral Resources 2, 328.Google Scholar
Rollinson, H. R. 1982. P–T conditions in coeval greenstone belts and granulites from the Archaean of Sierra Leone. Earth and Planetary Science Letters 59, 177–91.Google Scholar
Rosenbusch, H. 1901. Analysis of beerbachite, Frankenstein, Odenwald. In Element der Gesteinslehre, p. 228. Stuttgart: Schweizerbart'sche Verlagsbuchhandlung.Google Scholar
Shand, S. J. 1918. The norite of the Sierra Leone. Geological Magazine 55, 21–3.CrossRefGoogle Scholar
Turner, F. J. 1981. Metamorphic Petrology, 2nd ed. New York: McGraw-Hill.Google Scholar
Umeji, A. C. 1975. Gravity stratification in the Freetown basic igneous layered complex, Sierra Leone, West Africa. Geological Journal 10, 107–30.Google Scholar
Umeji, A. C. 1983. Geochemistry and mineralogy of the Freetown layered basic igneous complex of Sierra Leone. Chemical Geology 39, 1738.Google Scholar
Wells, M. K. 1962. Structure and petrology of the Freetown layered basic complex of Sierra Leone. Overseas Geology and Mineral Resources Bulletin, Supplement No. 4, 115 pp.Google Scholar
Williams, H. R. & Williams, R. A. 1977. Kimberlites and plate-tectonics in West Africa. Nature 270, 507–8.CrossRefGoogle Scholar
Winkler, H. G. F. 1979. Petrogenesis of Metamorphic Rocks, 5th ed. New York: Springer-Verlag, 348 pp.Google Scholar