Fig. 1From: SAPHYR: Swiss Atlas of Physical Properties of Rocks: the continental crust in a databaseSimplified lithology map of Switzerland, with data location. Data are subdivided into surface samples (outcrops), samples from tunnels or borehole. The circular diagram shows the relative abundance of the various sources. The numbers in brackets refer to data points as of December 2018 (Modified after Federal Office of Topography 1:500.000Â map 2006)Back to article page