Fig. 5

Structural outcrop observations: a Boudins of amphibolite in gneiss, wrapped by the Zapport foliation, in the southern part of the mapping area (R: 719,780, H: 155,660). Quartz-filled boudin necks indicate roughly NW–SE stretching (parallel to the outcrop surface). b Massive plagioclase gneiss from 0.5 km to the south of Alpe Scaradra di sopra (R: 720,558, H: 155,538), showing lithological layering corresponding to the Zapport foliation. This foliation has been folded into tight folds of the Leis Phase. Leis-fold axis plunges northeast (035/45). c Amphibole-bearing plagioclase gneiss (R: 719,792, H: 155,642) exhibits parasitic folding (3-rd order) of Leis Phase. Fold axis: 091/09, fold axial plane: 013/39. d Zapport-Phase foliation plane in K-feldspar augen gneiss with stretching lineation (306/31) defined by elongate K-feldspar porphyroclasts and aggregates. Locality: R: 719,775 H: 155,680. e Foliation plane (353/35) of the Leis-Phase crenulated by the Carassino Phase. Crenulation axes plunge east (080/03) parallel to the large-scale fold axis (cf. Fig. 4d). Locality: (R: 720,235, H: 155,756). f K-feldspar augengneiss north of Plattenberg, east of Torno. Leis foliation (vertical) overprints Zapport foliation (blue lines) and becomes more penetrative from left to right. A tight Leis fold is seen to the right