Fig. 5From: 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 basementBSE and SE images of zircons representing the age group of 880 Ma. a BSE images of a detrital zircon with an old core (2,000 Ma) and a younger rim (840 Ma). b BSE image of a 840 Ma old zircon. a′, b′: SE images of the same zircons showing typical ablation lines after the measurements. Sample FF3Back to article page