Fig. 6From: On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)Observations of the different lithologies and fault families present in the study area. a′, c′ Metamorphic series. b′ Granite. Schmidt’s projection on the lower hemisphere (a–c). Isodensity obtained with Stereonet (TLS-Geothermics, modified)Back to article page