Fig. 2: (a) Four-point-layout for electrical resistivity measurements of a rock, (b) electrical resistivity measurements of core samples (test borehole B1 Barnewitz/Nauen) as a function of porosity
Fig. 2: (a) Four-point-layout for electrical resistivity measurements of a rock, (b) electrical resistivity measurements of core samples (test borehole B1 Barnewitz/Nauen) as a function of porosity
Source: BGR