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The Olivines of the Garbh Eilean Sill, Shiant Isles

Published online by Cambridge University Press:  01 May 2009

R. Johnston
R. Johnston
Affiliation:
Department of Geology, University of St. Andrews.
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Abstract

Optical methods are employed in the re-determination of the composition of the olivines throughout the Garbh Eilean Sill. The olivines in the upper picrodolerite and the crinanite are zoned. The range of zoning and the iron content of the olivines increase progressively with height in the sill.

Type
Articles
Information
Geological Magazine , Volume 90 , Issue 3 , June 1953 , pp. 161 - 171
Copyright
Copyright © Cambridge University Press 1953

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References

REFERENCES

Bowen, N. L., and Schairer, J. F., 1935. The system MgO-FeO-SiO2. Amer. Journ. Sci., ser. 5, xxix, 151–217.CrossRefGoogle Scholar
Chudoba, K. F., and Frechen, J., 1943. Der Einfluss der Temperatur auf die Bezeihung zwischen Optik und Chemismus der Olivine. Neues Jahr. Min., Geol. u. Pal., Monatsh., Abt. A, vi, 91–106.Google Scholar
Deer, W. A., and Wager, L. R., 1939. Olivines from the Skaergaard intrusion, Kangerdlugssuak, east Greenland. Amer. Min., xxiv, 18–25.Google Scholar
Dodge, T. E., 1934. The determination of optic angle with the Universal stage. Amer. Min., xix, 62–75.Google Scholar
Drever, H. I., 1953. A note on the field relations of the Shiant Isles' picrite. Geol. Mag., xc, 159–160.CrossRefGoogle Scholar
Drever, H. I. and Livingstone, D. F., 1948. Some basaltic rocks from west Greenland. Proc. Roy. Soc. Edin., lxiii, 97–114.Google Scholar
Edwards, A. B., 1941. The crinanite laccolith of Circular Head, Tasmania. Proc. Roy. Soc. Vict., liii, 403–415.Google Scholar
Game, P. M., 1941. Optical properties of olivines from Ubekendt Island, west Greenland. Miner. Mag., xxvi, 11–15.Google Scholar
Hallimond, A. F., 1950. Universal stage methods. Mining Mag., lxxxiii, 12–22.Google Scholar
Hey, M. H., 1934. On the accuracy of mineralogical measurements. Miner. Mag., xxiii, 495–500.Google Scholar
Tomkeieff, S. I., 1939. Zoned olivines and their petrogenetic significance. Miner. Mag., xxv, 229–251.Google Scholar
Wager, L. R., and Deer, W. A., 1939. Geological investigations in east Greenland, Part III. Petrology of the Skaergaard intrusion, Kangerdlugssuak, east Greenland. Medd. om Grønland, cv, no. 4, 1–352.Google Scholar
Walker, F., 1930. The geology of the Shiant Isles (Hebrides). Quart. Journ. Geol. Soc., lxxxvi, 355–398.CrossRefGoogle Scholar
Winchell, A. N., 1933. Elements of optical mineralogy. Part II, 3rd edition.Google Scholar
Winchell, A. N. and Winchell, H., 1951. Elements of optical mineralogy. Part II, 4th edition.Google Scholar