Fig. 3

Three stacked cross sections through the eastern Aar Massif. Section traces are shown on Fig. 1a. ELHTS — Early Lower Helvetic thrust sheets. Legend and abbreviations as in Fig. 1a. a Section A′–A′′ is adapted from Nibourel et al. (2018). Coordinates: A′ \(46.8492^{\circ }\text {N}/8.4274^{\circ }\text {E}\), A′′ \(46.5916^{\circ }\text {N}/8.5181^{\circ }\text {E}\); Projection parallel to the fold axes: \(070^{\circ }/10^{\circ }\) (plunge-azimuth/plunge). b Section B′-B′′ is in part after Brückner and Zbinden (1987) and Pfiffner et al. (2011). Coordinates: B′ \(46.92282^{\circ }\text {N}/8.71097^{\circ }\)E, B′′ \(46.64687^{\circ }\text {N}/8.77070^{\circ }\text {E}\).; Projection parallel to the fold axes: \(070^{\circ }/14^{\circ }\) (plunge-azimuth/plunge). c Section C–C′ is modified from Böhm (1986). Coordinates: C \(46.8900^{\circ }\text {N}/8.9010^{\circ }\text {E}\), C′ \(46.6627^{\circ }\text {N}/8.9047^{\circ }\text {E}\); Section trace C–C′ additionally runs through the mountain tops of Tödi: \(46.8112^{\circ }\text {E}/8.9148^{\circ }\text {N}\), Stoc Grond: \(46.8003^{\circ }\text {E}/8.9143^{\circ }\text {N}\) and Stoc Pign: \(46.7862^{\circ }\text {E}/8.9072^{\circ }\text {N}\). Projection parallel to the fold axes: \(065^{\circ }/10^{\circ }\) (plunge-azimuth/plunge)