GeoMaps 500 Raster

Six «GeoMaps» at 1:500000 scale give a broad overview of the composition and major features of the underlying structure of Switzerland. The geological map provides an overview of the distribution of the uppermost rock strata occurring in Switzerland. The tectonic map displays the large-scale structural and tectonic units of Switzerland. Two hydrogeological maps (groundwater resources and vulnerability) present, on the one hand, the various groundwater resources and their productivity and, on the other hand, indicate the vulnerability of groundwater resources to possible contamination. The gravimetric map of Switzerland (Bouguer anomalies) shows the regional negative anomalies associated with the Alps and the positive anomaly of the Sesia-Finero zone. The map of the Last Glacial Maximum (LGM) shows the maximum extent of glaciation in Switzerland at the height of the last Ice Age about 24,000 years ago.