Fig. 14

a Thermal anomalies maps of Pontgibaud area. The black arrows represent the direction of fluid flow. b Resistivity model previously described (Fig. 3). c Comparison of the numerical simulation result affecting a \(K_{{f_{ \text{max} } }}\) permeability of 1.6 × 10⁻¹⁴ m⁻² at the Pontgibaud fault zone, with the resistivity profile. d Fluid flow velocity within the Pontgibaud fault zone