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Table 1 Field criteria used to delimit the first-order tectonic units

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

Complex Unit Presumed monocyclic meta-sediments Mappable high-strain zones Differences in the metamorphic and structural imprint
Internal Croix Courma X O O
Loses Blanches X O O
Prial X O O
Barmet SZ   X X O
External Crabun O X X
Aquila-Lago O X X (pre-Alpine)
Dondeuil O X O
Nery-Torché O X X (pre-Alpine)
Chasten O X O
  1. X present, O not observed