Fig. 1From: Detailed descriptions of the lower-middle Triassic and Permian formations using cores and gamma-rays from the EPS-1 exploration geothermal borehole (Soultz-sous-Forêts, Upper Rhine Graben, France)Location of wellheads of EPS-1 exploration well, the GPK-1, GPK-2, GPK-3 and GPK-4 geothermal wells at Soultz-sous-Forêts and GRT-1 and GRT-2 at Rittershoffen. It is located in the French north-western part of the Upper Rhine GrabenBack to article page