Fig. 11From: The Arosa zone in Eastern Switzerland: oceanic, sedimentary burial, accretional and orogenic very low- to low grade patterns in a tectono-metamorphic mélangeThe Haupterhorngrat section modified from Lüdin (1987). Conglomerate components of the Kössen formation (Rhaetian) with a high vitrinite reflectance of 3.7 %Rmax is detritic in a Cretaceous Palombini formation sandy turbidite (Aptian to Turonian). Maturity demonstrates the Mesozoic pre-orogenic M1 metamorphism (pre-Cretaceous)Back to article page