Fig. 1From: New stratigraphic interpretation of the Soultz-sous-Forêts 30-year-old geothermal wells calibrated on the recent one from Rittershoffen (Upper Rhine Graben, France)Map of the extrapolate temperatures of the Upper Rhine Graben region at 1 km depth. Main oilfields and major geothermal projects projected on the map. Re-drawn from GeORG (2004), version modifiedBack to article page