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Early Archean (3600-3650Ma?) Tectonic interleaving of unrelated rocks of different age in the north of the Itsaq gneiss complex of Greenland

Nutman, Allen; Friend, Clark; Bennett, Victoria


The world's most extensive, well preserved, early Archaean (>3500 Ma) structures occur in the northern end of the 3850-3560 Ma Itsaq Gneiss Complex, southern west Greenland, an area which includes the 3800-3700 Ma Isua supracrustal belt. These provide a unique opportunity to study early tectonics. The area is dominated by ~3800-3650 Ma orthogneisses containing migmatized inclusions of ≥3800 Ma metavolcanic, sedimentary, ultramafic, and gabbroic rocks. The thickest and most extensive of these...[Show more]

CollectionsANU Research Publications
Date published: 2002
Type: Journal article
Source: Tectonics


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