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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