Fig. 7

View of some tectonic structures present in the studied area. a Panoramic view on the Antognola Marls cropping out in the left bank of the lower Bardea Valley at the north eastern border of the studied area (Fig. 4). They show: (1) a main left lateral transpressive fault system with low angle thrusts; (2) an overturned syncline with second order folds forming a Z geometry; (3) the low angle left lateral transpressive fault in the normal limb of the syncline (LGR—Lagrimone Sandstone, ANT—Antognola Marls). b Panoramic view of the Taviano syncline that involves the arenaceous–pelitic lithofacies of Val Pessola Member. c Panoramic view of the Cereggio fault that brings the overturned Epiligurian Succession on top of the normal limb of the Taviano syncline (site b in Fig. 4), the Key bed 1 (K1) gives the polarity of the chaotic lithofacies. d The Monte Guido-Rivazzo low angle imbricate and transpressive thrusts (site d in Fig. 4) that displace the Key bed two (K2) at the top of the Varano Melegari chaotic lithofacies (Ran 3b). Dashed lines represent bedding planes, continuous lines are fault planes. e An example of kinematic indicators (stepped calcite slip fibres) on the low angle faults that displace the Key bed two (K2) outcropping near T. Enza (site c in Fig. 4)