Hostname: page-component-74656f9884-54qdv Total loading time: 0 Render date: 2026-11-10T02:08:00.659Z Has data issue: false hasContentIssue false
  • English
  • Français

Co-Existing Pyroxenes in Metamorphic Rocks

Published online by Cambridge University Press:  01 May 2009

M. J. O'Hara
M. J. O'Hara
Affiliation:
Grant Institute of Geology, University of Edinburgh
Get access Rights & Permissions [Opens in a new window]

Abstract

Chemical and optical data for eighteen granulite facies pyroxene pairs are compared. Compositions and tie-line trends derived from optical data are shown to be unreliable and it is recommended that no attempt be made to subdivide the granulite facies on the basis of optically derived tie-lines.

Information

Type
Articles
Information
Geological Magazine , Volume 97 , Issue 6 , December 1960 , pp. 498 - 503
Copyright
Copyright © Cambridge University Press 1960

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.)

Article purchase

Temporarily unavailable

References

REFERENCES

Brown, G. M., 1957. Pyroxenes from the early and middle stages of fractionation of the Skaergaard intrusion, East Greenland. Miner. Mag., xxxi, 511–543.Google Scholar
Clavan, W. S., McNabb, W. M. and Watson, E. H., 1954. Some hypersthenes from S.E. Pennsylvania and Delaware. Amer. Min., xxxix, 566–580.Google Scholar
Eskola, P., 1952. On the granulites of Lappland. Amer. Journ. Sci., Bowen Vol., 133–171.Google Scholar
Hess, H., 1941. Pyroxenes of common mafic magmas, part 2. Amer. Min., xxvi, 573–594.Google Scholar
Hess, H., 1949. Chemical composition and optical properties of common clinopyroxenes, part 1. Amer. Min., xxxiv, 621–666.Google Scholar
Hess, H., 1952. Orthopyroxenes of the Bushveld type, ion substitutions, and changes in unit cell dimensions. Amer. Journ. Sci., Bowen Vol., 173–187.Google Scholar
Howie, R. A., 1955. The geochemistry of the charnockite series of Madras, India. Trans. Roy. Soc. Edin., lxii, 725–768.CrossRefGoogle Scholar
Muir, I. D. and Tilley, C. E., 1958. The compositions of co-existing pyroxenes in metamorphic assemblages. Geol. Mag., xcv, 403–408.CrossRefGoogle Scholar
O'Hara, M. J., 1960 a. Unpublished Ph.D. thesis. University of Cambridge.Google Scholar
O'Hara, M. J., 1960 b. A garnet-hornblende-pyroxene rock from Glenelg, Invernessshire. Geol. Mag., xcvii, 145–156.CrossRefGoogle Scholar
Ross, C. S., Foster, M. D. and Myers, C. D., 1954. Origin of Dunites and of olivine-rich inclusions in Basaltic rocks. Amer. Min., xxxix, 693–737.Google Scholar
Rothstein, A. T. V., 1958. Pyroxenes from the Dawros Peridotite and some comments on their nature. Geol. Mag., xcv, 456–462.CrossRefGoogle Scholar
Wilson, A. F., 1960. Co-existing pyroxenes: some causes of variation and anomalies in the optically derived compositional tie-lines, with particular reference to Charnockitic rocks. Geol. Mag., xcvii, 1–17.CrossRefGoogle Scholar