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Geothermal Energy

Science – Society – Technology

Fig. 2 | Geothermal Energy

Fig. 2

From: On the geothermal potential of crustal fault zones: a case study from the Pontgibaud area (French Massif Central, France)

Fig. 2

Thermal, hydrothermal and geological features in the studied area. Location of Pranal and Ceyssat springs (brown dots), drilling of Peyrouses 1 (black dot), heat flow and geothermal gradient (red crosses, Lucazeau and Vasseur 1989; Vasseur et al. 1991; International Heat Flow Commission). Gelles granite (Négroni 1981). Heat production (Lucazeau 1981) and resistivity profile (black dashed line, Ars, 2018)

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