Fig. 7From: Timing of Palaeozoic magmatism in the Maggia and Sambuco nappes and paleogeographic implications (Central Lepontine Alps)U–Pb Concordia diagrams of the Variscan granitoids. Individual error ellipses are given at the 1-sigma level and errors on all calculated ages at the 2-sigma level (grey ellipse). The upper framed age is the Concordia age (Ludwig 2003) and the lower framed age (in italics) is the weighted average 206Pb/238U ageBack to article page