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On Magma-Types and their Nomenclature

Published online by Cambridge University Press:  01 May 2009

M. K. Wells  and
A. K. Wells
M. K. Wells
Affiliation:
University of London
A. K. Wells
Affiliation:
University of London
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Extract

In the discussion on a paper read recently by A, G. MacGregor on Scottish Carboniferous volcanicity,1 one of us, speaking on behalf of both, raised some points concerning the nomenclature of magma-types which we feel are worth amplifying. The points at issue concern firstly the use of the terms “tholeiite” and “olivinebasalt” when applied to fundamental magmas, and secondly the propriety of referring to the suites of rock-types supposed to be derived from them as “calc-alkali” and “alkali” respectively.

Type
Articles
Information
Geological Magazine , Volume 85 , Issue 6 , December 1948 , pp. 349 - 357
Copyright
Copyright © Cambridge University Press 1948

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References

page 349 note 1 Abstract in Proc. Geol. Soc. London, No. 1441, 05, 1948, p. 72.Google Scholar

page 349 note 2 Tertiary and post-Tertiary geology of Mull, Mem. Geol. Surv., Scotland, 1924, p. 13.Google Scholar

page 350 note 1 Holmes, A., A Suite of Volcanic Rocks from South-West Uganda. … Min. Mag., xxvi (1942), p. 197.Google Scholar

page 350 note 2 Wade, A., The Leucite-bearing Rocks of the West Kimberley Area, Western Australia. Quart. Journ. Geol. Soc., xcvi (1940), p. 39.CrossRefGoogle Scholar

page 351 note 1 The petrology of the Skaergaard Intrusion … Eastern Greenland. Meddel. om Grønland, 1939, p. 323.Google Scholar

page 351 note 2 Kennedy, W. Q., Trends of differentiation in basaltic magmas. Amer. Journ. Sci., xxv (1933), p. 239.CrossRefGoogle Scholar

page 351 note 3 Kennedy, W. Q., and Anderson, E. M., Crustal layers and the origin of magmas. Bull. Volc., 11, viii, 1938, p. 24.CrossRefGoogle Scholar

page 351 note 4 MacGregor, A. G., Problems of Carboniferous-Permian volcanicity in Scotland. Proc. Geol. Soc., London, No. 1441, 1948, p. 72.Google Scholar

page 352 note 1 Op cit. (1933) p 240.Google Scholar

page 353 note 1 Washington, H. S., Petrology of the Hawaiian Islands, III: Kilauea and general petrology. Amer. Journ. Sci., vi (1923), p. 338.CrossRefGoogle Scholar

page 353 note 2 A Descriptive Petrography of the Igneous Rocks, iii, 1937, p. 298.Google Scholar

page 353 note 3 The Tertiary and post-Tertiary geology of Mull. Mem. Geol. Surv., 1924, pp. 280 and 284.Google Scholar

page 353 note 4 The geology of Arran. Mem. Geol. Surv. 1928, p. 240.Google Scholar

page 354 note 1 The tholeiite dikes of the north of England (with analyses by H. F. Harwood). Min. Mag., xxii (1929), p. 1.Google Scholar

page 354 note 2 Kennedy, W. Q., Trends of differentiation in basaltic magmas. Amer. Journ. Sci., xxv (1933), p. 241.Google Scholar The essential facts are quoted without essential alteration in Kennedy and Anderson's later Crustal Layers paper, op. cit; (1938), p. 36.Google Scholar