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

    Publikation: Bidrag til bog/rapport/konferenceproceedingsKapitel i rapport

    Abstrakt

    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.
    OriginalsprogEngelsk
    TitelGeochronological studies in central East Greenland
    ForlagGrønlands Geologiske Undersøgelse
    Sider5–18
    Antal sider14
    DOI
    StatusUdgivet - 31 dec. 1987

    Publikationsserier

    NavnRapport Grønlands Geologiske Undersøgelse
    ForlagGGU
    Vol/bind134
    ISSN (Trykt)0418-6559
    ISSN (Elektronisk)2597-2944

    Programområde

    • Programområde 4: Mineralske råstoffer

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