Fig. 4From: 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 basementConcordia plot of detrital zircons from the Brixen Quartzphyllite with an age of 2,023 ± 31 Ma. Fine lined ellipses represent data-point error and the thick lined ellipse is the error of the concordia diagram based upon all data of this specific age group. Sample FF3Back to article page