Fig. 9From: Tectonics of the Monte Rosa and surrounding nappes (Switzerland and Italy): Tertiary phases of subduction, thrusting and folding in the Pennine AlpsTriassic dolomite of the Preja Formation cross-cut by about 30 cm thick basic dikes in the ridge 150 m NW of the Passo della Preja (Swiss map coordinates: 652.06 km/106.52 km/altitude 2370 m; Fig. 5 in Jaboyedoff et al. 1996)Back to article page