Fig. 1From: Assessment of deep geothermal research and development in the Upper Rhine GrabenA Simplified map of the European Cenozoic Rift System (adapted from Ziegler and Dèzes 2005), dark grey areas represent rift-related sediment basins. BG Bresse Graben, HG Hessian grabens, LG Limagne Graben, LRG Lower Rhine Graben, MGCH Mid-German Crystalline High, SNB Saar-Nahe Basin, URG Upper Rhine Graben. B Geological map of the URG including the main stratigraphic units (adapted from BGR 2016)Back to article page