U-Pb and Rb-Sr age determinations on Caledonian plutonic rocks in the central part of the Scoresby Sund region, East Greenland

B.T. Hansen, R.H. Steiger, N. Henriksen, B. Borchardt

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

    Abstract

    Five new U-Pb age determinations on zireons and three new or reanalysed Rb-Sr age determinations of some of the late orogenie plutonic bodies from the Gåseland - Stauning Alper migmatite and granite zone in the Scoresby Sund region, give Caledonian ages between 428 Ma and 352 Ma. Together with previously published age determinations they suggest a main intrusive epoeh around 420 Ma with the last intrusive events as late as 390 - 350 Ma. In addition analytical data for six previously published Rb-Sr ages from the region are reassessed and presented in full.
    Original languageEnglish
    Title of host publicationGeochronological studies in central East Greenland
    PublisherGrønlands Geologiske Undersøgelse
    Pages5–18
    Number of pages14
    DOIs
    Publication statusPublished - 31 Dec 1987

    Publication series

    SeriesRapport Grønlands Geologiske Undersøgelse
    Volume134
    ISSN0418-6559

    Programme Area

    • Programme Area 4: Mineral Resources

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