Fig. 1From: A marine pebbly mudstone from the Swiss Alps: palaeotectonic implications and some consequences for the interpretation of Precambrian diamictitesTectonic overview map showing the Helvetic nappes of central and eastern Switzerland and surrounding areas. The field area described in the present article is located within the rectangle defining the region displayed in Fig. 2. Redrawn after “Tectonic map of Switzerland, 2nd edition” (2005)Back to article page