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Minor Acid Intrusions and Dykes of Lamlash—Whiting Bay Region, Arran

Published online by Cambridge University Press:  01 May 2009

M. Srirama Rao
Affiliation:
Government Mining Polytechnic, Chhindwara, India.

Abstract

Thin sills and dykes of pitchstone and felsite and dykes of crinanite, olivine-dolerite, tholeiites of different types, quartz-dolerite, andesite, craignurite-pitchstone, felsite and porphyry are described and the importance of contact and deep-seated hybridization of two magmas of contrasting basic and acid composition in their formation established. Among the dykes, the sequence of intrusion is surmised to be as follows: basic, sub-basic, intermediate, acidic, and, again, basic.

Type
Articles
Copyright
Copyright © Cambridge University Press 1959

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References

Fenner, C. N., 1926. The Katmai Magmatic Province. Journ. Geol., xxxiv, 673772.CrossRefGoogle Scholar
Geikie, X, 1940. Structural and Field Geology. Fifth Edition. London.Google Scholar
Harker, A., 1903. The Geology of North Arran...(Explanation of Sheet 21). Mem. Geol. Surv. Scotland.Google Scholar
Holmes, A., and Harwood, H. F., 1929. The Tholeiite Dikes of the North of England. Miner. Mag., xxii, 152.Google Scholar
Scott, A., 1913. The Pitchstones of South Arran. Trans. Geol. Soc. Glasgow, xv, 1637.Google Scholar
Srirama, Rao M., 1958. Composite and Multiple Intrusions of Lamlash-Whiting Bay Region, Arran. Geol. Mag., xcv, 265280.CrossRefGoogle Scholar
Tilley, C. E., 1957. A Note on the Pitchstones of Arran. Geol. Mag., xciv, 329333.CrossRefGoogle Scholar
Tomkeiff, S. I., and Marshall, C. E., 1935. The Mourne Dyke Swarm. Quart. Journ. Geol. Soc., xci, 251292.CrossRefGoogle Scholar
Tyrrell, G. W., 1928. The Geology of Arran. Mem. Geol. Surv. Scotland.Google Scholar
Winchell, A. N., 1933. Elements of Optical Mineralogy, Part II. Third Edition.Google Scholar