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.
|Series||Rapport Grønlands Geologiske Undersøgelse|
- Programme Area 4: Mineral Resources