Fig. 9
From: Overdeepenings in the Swiss plateau: U-shaped geometries underlain by inner gorges
© swisstopo)) along the profile (blue solid line). The red broken line illustrates the bedrock topography of the model by Reber and Schlunegger (2016). The blue dots mark the locations of the gravity stations, the red diamonds indicate drillings that reached the bedrock. The black rectangles show the cross sections of the prisms used for modelling. Please refer to Additional file 4: Appendix D.5 for more information
The Bern2 profile. a Bouguer anomalies and regional trend of the gravity field along the profile. The blue dots represent the stations where gravity data was collected for this study. The blue line hightlights the main anomaly, and the red line indicates the gravity effect of the inner gorge. See Additional file 4: Figure D.5.1 for location of stations, Additional file 1: Appendix A for gravity data and B for information on the drillings. b Final model for the Bern2 profile (including the topographic signal), made with multiple prisms with a density contrast of − 500 kg/m3 for the top prisms and − 350 kg/m3 for the rest of the prisms. The blue dots represent the observed residual anomaly (the dot size corresponds to the average uncertainty of ± 0.04 mGal), and the orange dots are the modelled residual anomaly values for model 13. The black bars indicate our maximum uncertainty of ± 0.13 mGal. The light blue line highlights the main anomaly, the red line shows the secondary anomaly of the inner gorge. c Elevation (SwissAlti3D 2 m DEM (