Skip to main content
Swiss Journal of Geosciences
Fig. 5 | Swiss Journal of Geosciences

Fig. 5

From: A gravimetric assessment of the Gotthard Base Tunnel geological model: insights from a novel gravity terrain-adaptation correction and rock physics data

Fig. 5

a Bouguer gravity anomaly field sampled along the tunnel profile (red), and along two parallel profiles to the W-SW and to the E-NE of the tunnel profile, here reported for comparison (blue). The green line represents the regional Bouguer anomaly trend, interpolated with a 2nd order polynomial and removed from the data to account for the large-scale crustal thickness variations, as shown in panel b. The Bouguer anomaly data shown here is provided by swisstopo, accessible at map.geo.admin.ch with layer name “Bouguer anomalies 500” (i.e. Bouguer gravity anomaly map of Switzerland 1:500,000). b European and Adriatic Moho depths sampled along the tunnel profile, and along two parallel profiles to the W-SW and to the E-NE of the tunnel profile, as in panel a. Moho depth information from Spada et al. (2013)

Back to article page