Fig. 1From: Unveiling microbial diversity in deep geothermal fluids, from current knowledge and analogous environmentsOverlap in environmental conditions between deep geothermal fluids used for electricity production and other extreme environments. The parameters shown are temperature [°C], salinity [NaCl in g/L], and depth [m]. The presence of hydrocarbons is marked by an Asterix (*). For depth, the following abbreviations are used: meters below sea floor (mbsf), meters below soil surface (mbss).Back to article page