Fig. 2

Simplified illustration of the Alpine tectonic evolution of the Aar and Gotthard massif. The area labeled ‘Helvetic, Penninic and Austroalpine nappes’ also includes flysch and Molasse units. Colored terms indicate deformation phases described in the text. Modified from Nibourel et al. (2021), Herwegh et al. (2017) and Ricchi et al. (2019). Interpretations based on the present study have been supplemented to the Gotthard massif