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Alkaline Syenites at Ruri, South Nyanza, Kenya1

Published online by Cambridge University Press:  01 May 2009

William Pulfrey
Affiliation:
P.O. Box 339, Nairobi, Kenya.

Abstract

Alkaline syenites from the Ruri Hills in Western Kenya are described, and the hypothesis advanced that their present constitutions have been developed partly by replacement. The syenites occur as dykes and small plugs associated with ring complexes of carbonatites which, together with agglomerates, largely form the hills, and are presumed to be congeneric with an ijolite mass at Usaki.

Type
Articles
Copyright
Copyright © Cambridge University Press 1954

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Footnotes

1

Published by permission of the Commissioner (Mines and Geology), Nairobi, Kenya.

References

REFERENCES

Collomb, P., 1952. A propos d'un phénomène de croissance secondaire des feldspaths potassiques dans une microgranulite filonienne. Bull. Soc. Geol. France, 6th Ser., i, 621–6.Google Scholar
Lehmann, E., 1951. The significance of the hydrothermal stage in the formation of igneous rocks. Geol. Mag., lxxxix, 61–8.Google Scholar
Phemister, J., Read, H. H., and Ross, G., 1926. The geology of Strath Oykell and Lower Loch Shin. Mem. Geol. Surv. Scotland.Google Scholar
Pulfrey, W., 1944. Note on the Homa Bay area, Kavirondo Kenya. Abstr. Proc. Geol. Soc., No. 1406, 101–2.Google Scholar
Pulfrey, W. 1950. Ijolitic rocks near Homa Bay, Western Kenya. Quart. Journ. Geol. Soc., cv, 425459.Google Scholar
Quensel, P., 1914. The alkaline rocks of Almunge. Bull. Geol. Inst. Upsala, xii, 129200.Google Scholar
Eckermann, H. Von, 1948. The alkaline district of Alnö Island. Sver. Geol. Undersök., Ser. Ca, No. 36.Google Scholar