Fig. 3
From: Precambrian to Paleozoic zircon record in the Siviez-Mischabel basement (western Swiss Alps)
Cathodoluminescence (CL) images of representative zircon crystals from three meta-igneous rocks (a–c) and two metasedimentary rocks (d, e) from the Siviez-Mischabel nappe. Scale is the same for all zircons. Analyzed spots are indicated by circles (diameter 35 and 25 μm). Obtained 206Pb/238U ages (Ma) are provided for results younger than 1 Ga, for analyses older than 1 Ga 207Pb/206Pb ages (Ma) are given. All errors are given at the 2σ-level