Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-08T10:38:07.639Z Has data issue: false hasContentIssue false
  • English
  • Français

Biotite- and Sphene-rich rocks in the Moine Series of Ardnamurchan, Argyllshire

Published online by Cambridge University Press:  01 May 2009

B. C. M. Butler
B. C. M. Butler
Affiliation:
Department of Geology and Mineralogy, University Museum, Oxford.
Get access Rights & Permissions [Opens in a new window]

Abstract

Schists composed essentially of biotite and sphene have been found in many localities in the psammitic groups of the Moine Series in Ardnamurchan. From petrographic and chemical evidence it is concluded that they were heavy mineral bands, composed of sphene and iron oxides with a matrix which was partly pelitic and partly quartzo-feldspathic. This postulated original composition may have been produced by sedimentary slumping, for which field evidence is available. The unusual chemical composition was probably accentuated at higher grades of metamorphism by metamorphic metamorphic segregation, particularly a loss of soda or of segregation, particularly a loss of soda or of albite into the surrounding arkoses.

Type
Articles
Information
Geological Magazine , Volume 99 , Issue 2 , April 1962 , pp. 173 - 182
Copyright
Copyright © Cambridge University Press 1962

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Chayes, F., 1956. The Holmes effect and the lower limit of modal analysis. Miner. Mag., 31, 276–281.Google Scholar
Drever, H. I., 1940. The geology of Ardgour, Argyllshire. Trans. roy. Soc. Edin., 60, 141–170.CrossRefGoogle Scholar
Haaf, E. ten, 1959. Properties and occurrence of turbidites. Geol. en Mijn-bouw, 21, 217–222.Google Scholar
Peach, B. N., Horne, J. et al. , 1907. The Geological Structure of the North-West Highlands of Scotland. Mem. geol. Surv. U.K.Google Scholar
Pettijohn, F. J., 1957. Sedimentary Rocks. New York.Google Scholar
Read, H. H., 1931. The Geology of Central Sutherland. Mem. geol. Surv. U.K.Google Scholar
Richey, J. E., Eyles, V. A., and Kennedy, W. Q., 1938. West Highland District. Summ. Progr. geol. Surv. U.K. for 1937, 71–72.Google Scholar
Richey, J. E., and Kennedy, W. Q., 1939. The Moine and Sub-Moine Series of Morar, Investness-shire. Bull. geol. Surv. U.K., 2, 26–45.Google Scholar
Richey, J. E., and Thomas, H. H., 1930. The Geology of Ardnamurchan, North-west Mull and Coll. Mem. geol. Surv. U.K.Google Scholar
Tucker, E. V., 1960. Ludlovian biotite-bearing bands. Geol. Mag., 97, 245–249.CrossRefGoogle Scholar
Wilson, G., Watson, J., and Sutton, J., 1953. Current-bedding in the Moine Series of North-Western Scotland. Geol. Mag., 90, 377–387.CrossRefGoogle Scholar
Yoder, H. S., 1959. Experimental studies on micas: a synthesis. Proc. Sixth Natl. Conf. on Clays and Clay Minerals, 42–60.Google Scholar