Fig. 8 

Transect of the Near-Top Basement line used in the 2D kinematic forward model compared with existing data. This transect is located in Fig. 1. Comparisons between well data and different seismic and elevation models (Sommaruga et al., 2012; Clerc, 2016; Allenbach et al., 2017; Hauvette et al., 2021; Schori, 2021) have been performed to have the most precise elevation of the Near-Top basement horizon for the 2D kinematic forward model. The Near-Top basement line used in this study (black bold line) follows the seismic interpretations of Hauvette et al. (2021) and grids converted by the new multi-layered velocity model. These data are compared with other studies by indicating the discrepancy between them. The highest difference (400 m) is situated beneath the Crêt de la Neige, where no seismic data has been recorded. The top of the basement under the Jura FTB dips more gently than under the Geneva Basin. We interpret this change in angle as a preexisting normal fault with a supposed offset of 200 m beneath the SE flank of the Crêt de la Neige