Constraints for a structural subdivision of the Southwest Scandinavian domain in Sweden

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Authors:Larson, Sven Ake; Stigh, Jimmy; Lind, Gustaf
Author Affiliations:Primary:
University of Goteborg, Earth Sciences Centre, Goteborg, Sweden
Volume Title:GFF
Source:GFF, 120(1), p.85-90. Publisher: Geological Society of Sweden, Stockholm, Sweden. ISSN: 1103-5897
Publication Date:1998
Note:In English. 76 refs.; illus., incl. 1 table, geol. sketch maps
Summary:Differences in structural overprinting of rocks E and W of a Sveconorwegian shear zone, the Mylonite Zone, Värmland, SW Sweden, reveal that this part of the Southwest Scandinavian Domain should be subdivided into different structural domains. The rocks of E Värmland are affected mainly by Sveconorwegian ductile deformation, where the most prominent structural elements are a foliation and mineral lineations, one of which is associated with open, upright, N-S trending folds. Rocks of W Värmland have a pre-Sveconorwegian deformation history characterized by stromatic veining and isoclinal folding. Subsequent Sveconorwegian thrusting overprints these structures in localized shear zones. One of these is the Mylonite Zone, which roughly marks the E border of Gothian folding in this area. [B.L.]
Subjects:Age; Crystalline rocks; Deformation; Faults; Metamorphic rocks; Mylonites; Orogeny; Overprinting; Precambrian; Shear zones; Sveconorwegian Orogeny; Tectonics; Terranes; Europe; Fennoscandian Shield; Scandinavia; Sweden; Western Europe
Abstract Numbers:98M/4207
Record ID:2002071846
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from Geoline, Bundesanstalt fur Geowissenschaften und Rohstoffe
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