Fig. 3From: Analysis of tectonic structures and excavation induced fractures in the Opalinus Clay, Mont Terri underground rock laboratory (Switzerland)2D balanced cross-section along the Mont Terri anticline (after Freivogel and Huggenberger 2003). This anticline can be described as a fault-bend fold developed above a frontal ramp and with an overturned forelimb. The location of the rock laboratory is indicated by the red rectangle. The Main Fault which outcrops in the rock laboratory is soling in the Jura basal décollement within the Middle Triassic evaporites. Inherited normal faults of the Rhine–Bresse Graben system are overprinted by the Late Miocene Jura deformationBack to article page