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Comparison of Three Scottish Magmas

Published online by Cambridge University Press:  01 May 2009

Samuel Elder
Affiliation:
Baxter Demonstrator, University of Glasgow.

Extract

A comparison of the chemical features of Scottish magmas, has been greatly simplified through the appearance of a recent memoir, compiled from the records of the Geological Survey (Guppy, 1931). This memoir gives the composition, age, locality, and microscopic petrography of a great number of Scottish rocks. The present note deals with three Scottish magmas: Devonian (Lower Old Red Sandstone), Carboniferous and Tertiary. It excludes certain analyses of the Survey list, owing to decomposition of the analysed material. It includes a few from outside sources, to augment the data concerning the Devonian magma (F. Walker, 1924, 1925, 1927, 1928; and J. G. C. Anderson, 1935).

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1935

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References

Anderson, J. G. C., 1935. “The Marginal Intrusions of the Ben Nevis Complex, and the Associated Mass of Coille Lianaehain,” Trans. Geol. Soc. Glasgow, xix, 257.Google Scholar
Guppy, E. M., Thomas, H. H., Ennos, F. R., and Sutcliffe, R., 1931. “Chemical Analyses of Igneous Rocks, Metamorphic Rocks, and Minerals,” Mem. Geol. Survey.Google Scholar
Walker, F., 1924. “A Marginal Modification of the Ballachulish Granite,” Geol. Mag., LXI, 554.Google Scholar
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Walker, F., 1928. “The Plutonic Intrusions of the Southern Uplands East of the Nith Valley,” Geol. Mag., LXV, 161.Google Scholar