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Abstract
U-Pb dating has been carried out on zircons from three Småland-Värmland granitoids. The Filipstad granite in Värmland yields an U-Pb age of 178±10 (2σ) Ma, the Växjö granite west of Linköping 1808±4 (2σ) Ma, and the Växjö granite east of Växjö 1769±9 (2σ) Ma. These results suggest that the‘postorogenic’ granites of the Småland-Värmland belt are older than indicated by previous Rb-Sr age determinations, and that they were formed penecontemporaneous with the‘lateorogenic’ Svecokarelian granites further east.