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Amphiboles and biotite in relation to the stages of metamorphism in granogabbro

Published online by Cambridge University Press:  05 July 2018

W. Smulikowski
W. Smulikowski*
Affiliation:
Institute of Geological Sciences, Polish Academy of Sciences, Zwirki i Wigury 93, 02-089 Warszawa
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Summary

The Bratteggdalen granogabbro, a relict mass in the Caledonian amphibolites of Vestspitsbergen, shows a series of amphibole development reflecting its thermal history. A brown Ti-rich hornblende occurs as a late magmatic mantling of pyroxene. Low-grade metamorphism (greenschist facies) was accompanied by the development of actinolite from pyroxene; subsequent amphibolite facies metamorphism saw the development of an alkali-rich, blue-green hornblende. The chemical changes in the amphiboles are a succinct illustration of those found in progressive regional metamorphism.

Type
Research Article
Information
Mineralogical Magazine , Volume 39 , Issue 308 , December 1974 , pp. 857 - 866
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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References

Bard, (J. P.), 1970. Cont. Min. Petr., 28, 117.CrossRefGoogle Scholar
Black, (P. M.), 1973. Ibid. 39, 55.CrossRefGoogle Scholar
Deer, (W. A.), Howie, (R. A.), and Zussman, (J.), 1962. Rock-forming minerals, 3. Longmans, London.Google Scholar
Engel, (A. E. J.) and Engel, (C. G.), 1962. Geol. Soc. Amer. Buddington vol., 37.Google Scholar
Ernst, (W. G.), 1968. Amphiboles. Berlin-in -Heidelberg-New York (Springer Verlag).CrossRefGoogle Scholar
Leake, (B. E.), 1965. In Pitcher, (W. S.) and Flinn, (G. W.), Controls of metamorphism. Edinburgh and London (Oliver and Boyd), 299.Google Scholar
Miyashiro, (A.), 1967. Metamorphism of mafic rocks.In Hess, (H. H.) and Polder vaart, (A.), eds., The Poldervaart treatise on the rocks of basaltic composition. New York, London, and Sydney (Wiley), 2, 799.Google Scholar
Seitsaari, (J.), 1953. Comm. Geol. Finlande Bull., 159, 83.Google Scholar
Smulikowski, (W.), 1965. Studia Geol. Polonica, 18, 8.Google Scholar