Fig. 4From: The influence of hydrothermal brine on the short-term strength and elastic modulus of sandstones from exploration well EPS-1 at Soultz-sous-Forêts (France)a Schematic diagram showing the uniaxial compression apparatus used in the study (modified from Heap et al. 2014). b Photograph of the uniaxial compression apparatus used in the study (showing a sample of 540 deformed under water-saturated conditions). For the water- and brine-saturated experiments, the perspex casing is filled with deionised water and hydrothermal brine, respectivelyBack to article page