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Geothermal Energy

Science – Society – Technology

Fig. 13 | Geothermal Energy

Fig. 13

From: Microstructural and petrophysical properties of the Permo-Triassic sandstones (Buntsandstein) from the Soultz-sous-Forêts geothermal site (France)

Fig. 13

a Permeability as a function of clay content for the sandstones sampled from exploration well EPS-1 at Soultz-sous-Forêts (Alsace, France) and the three quarry rocks. b Permeability as a function of average grain diameter for the sandstones sampled from exploration well EPS-1 at Soultz-sous-Forêts. perp sample cored perpendicular to bedding, para sample cored parallel to bedding. n refers to the number of samples

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