Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-05T06:56:41.806Z Has data issue: false hasContentIssue false
  • English
  • Français

Almandine pseudomorphous after plagioclase in a metadolerite dyke from the Jotunheim, Norway

Published online by Cambridge University Press:  05 July 2018

M. H. Battey ,
W. Davison  and
P. J. Oakley
M. H. Battey
Affiliation:
University of Newcastle upon Tyne NE1 7RU, England
W. Davison
Affiliation:
University of Newcastle upon Tyne NE1 7RU, England
P. J. Oakley
Affiliation:
University of Newcastle upon Tyne NE1 7RU, England
Get access Rights & Permissions [Opens in a new window]

Summary

An undeformed metadolerite dyke cutting foliated pyroxene-granulite facies gneisses in the Jotunhelm, Norway, has almandine rods replacing the cores of plagioclase laths, although garnet is generally absent from the enclosing gneisses, and is not present in reaction zones between peridotites and gneisses. Chemical analyses of the dyke and its garnet, plagioclase, and clinopyroxene are given. The presence of garnet in the dyke is attributed to the low mg ratio of the rock. The nature of the reaction leading to garnet pseudomorphous after plagioclase is discussed.

Type
Research Article
Information
Mineralogical Magazine , Volume 43 , Issue 325 , March 1979 , pp. 127 - 130
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1979

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

Battey, (M. H.) and McRitchie, (W. D.), 1975. Norsk Geol. Tidsskrift. 55, 1-49.Google Scholar
Green, (D. H.) and Ringwood, (A. E.), 1967. Geochim. Cosmochim. Acta. 31, 767-833.CrossRefGoogle Scholar
Griffin, (W. L.), 1971. Mineral. Mag. 38, 435-45.CrossRefGoogle Scholar
Harrison, (R. K.), 1968. Bull. Geol. Surv. G.B., No. 28, 38-54.Google Scholar
Leake, (B. E.), 1972. Mineral. Mag. 38, 649-65.CrossRefGoogle Scholar
Kushiro, (I.) and Yoder, (H. S., jr.), 1966. J. Petrol. 7, 337-62.CrossRefGoogle Scholar
Waard, (D. de), 1965a. Am. J. Set 263, 455-61.Google Scholar
Waard, (D. de) 1965b. J. Petrol. 6, 165-91.CrossRefGoogle Scholar
Waard, (D. de) 1967. J. Petrol. 8, 210-32.CrossRefGoogle Scholar
Weigand, (P. W.) and Ragland, (P. C.), 1970. Contrib. Mineral. Petrol. 29, 195-214.CrossRefGoogle Scholar
Winkler, (H. G. F.), 1976. Petrogenesis of metamorphic 4th edn, New York, Springer-Vedag.CrossRefGoogle Scholar