Examples of limit analysis results using Optum G2 from prototype C, classified by tectonic style in the frontal Jura (black dashed rectangle). Colours show the absolute value of the velocity vector |U| normalised by the horizontal component of the velocity at the pushing wall (red arrows). Type 1 groups results in which the deformation propagates beyond the front of the Jura. In type 2, the Jura front is submitted to pure thick-skinned tectonics, in type 3, the tectonic is thick-skinned but the Triassic décollement D₁ is active too, in type 4, the Jura front undergoes thin-skinned tectonics, and, in type 5, the Jura front is not affected by the deformation.