Fig. 12From: Assessment of deep geothermal research and development in the Upper Rhine GrabenHydraulic conductivity of different deep reservoirs in the Upper Rhine Graben presented as boxplot; shown are the median values (n number of different boreholes, BF data of Black Forest and deep wells in N-Switzerland). It is indicated whether the fluid flow in the reservoir horizon is dominated by fractures (F) or matrix (M)Back to article page