Fig. 4From: The 3D interplay between folding and faulting in a syn-orogenic extensional system: the Simplon Fault Zone in the Central Alps (Switzerland and Italy)Field measurements related to D4 backfolds in the Northern (a, b) and Southern (c, d) Steep Belts. Lower hemisphere, equal area projection; The mean fold axis orientation is indicated (cross) as well as the mean stretching lineation (240/19) related to the Simplon Fault Zone in the Northern Steep Belt (square)Back to article page