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Some migmatite types and their origins, from the Barousse Massif, Central Pyrenees

Published online by Cambridge University Press:  01 May 2009

N. B. W. Harris
N. B. W. Harris
Affiliation:
Department of Mineralogy and PetrologyDowning PlaceCambridge
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Summary

Observations on the structure, fabrics, mineral assemblages and distributions of plagioclase compositions from migmatites of the Barousse Massif, Central Pyrenees, are related to the mode of differentiation of leucosome from melanosome. It is concluded that the majority of these migmatites have formed from recrystallization of sedimentary horizons, often accompanied by metamorphic differentiation, although some migmatites appear to have formed from anatexis or magmatic injection.

Type
Articles
Information
Geological Magazine , Volume 111 , Issue 4 , July 1974 , pp. 319 - 328
Copyright
Copyright © Cambridge University Press 1974

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References

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