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Fig. 7 | Swiss Journal of Geosciences

Fig. 7

From: Internal geometry of the central Sesia Zone (Aosta Valley, Italy): HP tectonic assembly of continental slices

Fig. 7

Main deformation stages in the External Complex and in the BSZ. a Pre-Alpine Grt aggregate (10 cm ø) in amphibolite. The HT foliation is preserved. (2DK, boulder in the scree from the Nery-Torché slice). b Pre-Alpine magmatic allanite displaying simple twinning in orthogneiss (Dondeuil sheet; plane-polarized light). c Several metres F3 isoclinal fold in the orthogneiss (Crabun sheet). d Intersection pattern between cm-scale F3 and F5 in paragneiss (Crabun sheet). e Several metres F5 fold in orthogneiss (Crabun sheet). f F5 detail with crenulation cleavage in paragneiss (Crabun sheet). g Metre-scale F5 hinge zone in orthogneiss (Barmet SZ). h F6 hinge in silicate marble with associated fractures (Barmet SZ). Pink circle highlight the scale. Field photos coordinates are included in Online Resource 3

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