Fig. 1From: U–Pb geochronology of detrital zircons from a contact metamorphic Brixen Quartzphyllite (South-Tyrol, Italy): evidence for a complex pre-Variscan evolution of the Southalpine basementa Simplified geological map of the northern Southalpine crystalline basement in the Eastern Alps after Sassi and Spiess (1993). The stippled line represents the Periadriatic Lineament. b Simplified geological map of the contact aureole near Franzensfeste/Fortezza area showing the distribution of the mineral zones 1–3b as described in the textBack to article page