Regional Geology

Here the underground consists of various nappes. If you drilled near Vandans you would first hit the Austroalpine nappes of the Northern Calcareous Alps, then the Penninic nappes that came from 2 ocean floors and a small continent that disappeared into the earth and then the Helvetic nappes which form part of the European continent. Below that is the Molasse zone at a depth of 6,000 m.