Gneiss complex of the Skærfjorden region (76°-78°N), North-East Greenland

J.M. Hull, J.D. Friderichsen, J.A. Gilotti, Niels Henriksen, A.K. Higgins, F. Kalsbeek

    Research output: Chapter in Book/Report/Conference proceedingChapter in report


    The crystalline rocks of the Skærfjorden region are dominated by grey migmatitic orthogneisses with smaller bodies of ultramafic, mafic and metasedimentary lithologies. Archaean rocks (c. 3.0 Ga) have been documented, but crustal additions were predominantly Early Proterozoic (2.0–1.75 Ga) in age, reflecting subduction zone magmatism. FolIowing Early Proterozoic orogenesis and migmatisation, granitic sheets (c. 1.7 Ga) and dolerite dykes were intruded. These intrusive rocks were subsequently deformed and metamorphosed in the Caledonian orogeny (c. 400 Ma). The Skærfjorden region is located in the Caledonian hinterland, where orogen parallel stretching and extension followed an early nappe stage.
    Original languageEnglish
    Title of host publicationGeology of North-East Greenland
    PublisherGrønlands Geologiske Undersøgelse
    Number of pages17
    Publication statusPublished - 1994

    Publication series

    SeriesRapport Grønlands Geologiske Undersøgelse

    Programme Area

    • Programme Area 4: Mineral Resources


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