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A Note on the Composition of some Natural Acid Glasses

Published online by Cambridge University Press:  01 May 2009

Ian Carmichael
Ian Carmichael
Affiliation:
Department of Geology, Imperial College of Science, London, S. W. 7.
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Abstract

Pitchstones and obsidians from Arran, Eigg, and Iceland, are shown to have small but distinct differences in their major-and trace-element composition, and it is concluded that acid magma in the British Tertiary as represented by the pitchstones from Arran and Eigg maybe more variable in composition than that of the Icelandic subprovince. Fourteen new analyses are represented.

Type
Articles
Information
Geological Magazine , Volume 99 , Issue 3 , June 1962 , pp. 253 - 264
Copyright
Copyright © Cambridge University Press 1962

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References

REFERENCES

Bowen, N. L., 1928. The Evolution of the Igneous Rocks. Princeton.Google Scholar
Carmichael, I. S. E., 1960. The pyroxenes and olivines from some Tertiary acid glasses. J. Petr. 1, 309–336.Google Scholar
Carmichael, I. S. E., 1962. Pantelleritic liquids and their phenocrysts Miner. Mag. (in press).Google Scholar
Carmichael, I. S. E., and McDonald, A. J., 1961. The colorimetric and polarographic determination of some minor elements in the standard rocks G-1 and W-1. Geochim. et Cosmochim. Acta, 22, 87–93.CrossRefGoogle Scholar
Emeleus, C. H. and Smith, J. V., 1959. The alkali feldspars VI. Sanidine and orthoclase perthites from the Slieve Gullion area, Northern Ireland. Amer. Min., 44, 1187–1209.Google Scholar
Harris, P. G. and Brindley, G. W., 1954. Mordenite as an alteration product of pitchstone glass. Amer. Min., 34, 819–824.Google Scholar
Hughes, C. J., 1960. The Southern Mountains igneous complex, Isle of Rhum. Quart. J. geol. Soc. Lond., 116, 111–138.Google Scholar
Krauskopf, K. B., 1957. The heavy metal content of magmatic vapour at 600° C. Econ. Geol., 52, 786–807.CrossRefGoogle Scholar
Lacroix, A., 1930. Les roches hyperalcalines du massif du Fantalé et du col de Balla. Mem. Soc. géol. Fr., 6, 89–102.Google Scholar
Morey, G. W., 1957. The solubility of solids in gases. Econ. Geol., 52, 225–251.CrossRefGoogle Scholar
Nockolds, S. R. and Allen, R., 1956. The geochemistry of some igneous rock series. Part III. Geochim. et Cosmochim. Acta., 9, 34–77.Google Scholar
Onishi, H. and Sandell, E. B., 1955. Geochemistry of arsenic. Geochim. et Cosmochim. Acta., 7, 1–33.CrossRefGoogle Scholar
Rao, M. S., 1959. Minor acid intrusions and dykes of Lamlash-Whiting Bay region, Arran. Geol. Mag. 96, 237–246.Google Scholar
Sandell, E. B. and Goldich, S. S., 1943. The rarer metallic constituents of some American igneous rocks. II. J. Geol., 51, 167–189.Google Scholar
Tilley, C. E., 1957. A note on the pitchstones of Arran. Geol. Mag., 94, 329–333.CrossRefGoogle Scholar
Tuttle, O. F. and Bowen, N. L., 1958. Origin of granite in the light of experimental studies. Mem. geol. Soc. Amer., 74, 1–153.Google Scholar
Tyrrell, G. W., 1928. Geology of Arran. Mem. geol. Surv. U.K.Google Scholar
Verhoogen, J., 1949. Thermodynamics of a magmatic gas phase. Bull. Dept. geol. Soc., Univ. Calif., 28, 91–136.Google Scholar
Wager, L. R., Weedon, D. S., and Vincent, E. A., 1953. A granophyre from Coire Uaigneich, Isle of Skye, containing quartz paramorphs after tridymite. Miner. Mag., 30, 263–275.Google Scholar
Walker, G. P. L., 1960. Zeolite zones and dike distribution in relation to the structure of the basalts of eastern Iceland. J. Geol., 68, 515–528.CrossRefGoogle Scholar
Wilson, H. D. B., 1953. Geology and geochemistry of base metal deposits. Econ. Geol., 48, 370–407.CrossRefGoogle Scholar
Wright, F. E., 1915. Obsidian from Hrafntinnurhyggur, Iceland: its lithophysae and surface markings. Bull. geol. Soc. Amer., 26, 255–286.Google Scholar