Migmatites; examples from Arvika and Graestorp (western Sweden) and Nelaug (southern Norway) areas, results of almost isochemical partial melting

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Authors:Johannes, W.; Gupta, N. L.
Author Affiliations:Primary:
Inst. Kristallogr. Petrogr., Hanover 3000, Federal Republic of Germany
Volume Title:Sciences Géologiques (Bulletin)
Source:Sciences Géologiques (Bulletin), 39(4), p.381-390. Publisher: Université Louis-Pasteur, Institut de Géologie, Strasbourg, France. ISSN: 0302-2692
Publication Date:1986
Note:In English with French summary. 1 p. refs.; illus.
Summary:Three migmatite examples (Arvika, Graestorp and Nelaug) and one example of country rock (Arvika) were investigated in detail. A comparison of the different migmatite layers amongst themselves and with those of the country rock layers indicates that: 1) protoliths of the migmatites were heterogeneous; 2) leucosome + adjacent melanosomes form a genetic unit; 3) country rock (gneiss) layers of only suitable composition were transformed into leucosome- melanosome units. Almost isochemical partial melting was the main migmatite-forming process. [A.W.H.]
Subjects:Gneisses; Magmas; Metamorphic rocks; Migmatites; Partial melting; Petrology; Europe; Norway; Scandinavia; Southern Norway; Sweden; Western Europe; Arvika; Graestorp; Isochemical processes; Nelaug
Coordinates:N583900 N583900 E0084000 E0084000
N594100 N594100 E0123800 E0123800
Abstract Numbers:88M/4699
Record ID:1989043911
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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