Fig. 9From: Petrophysical characterization of the Los Humeros geothermal field (Mexico): from outcrop to parametrization of a 3D geological modelPrincipal component analysis applied to the magnetic susceptibility, sonic wave velocities as well as petrophysical, and thermophysical properties of the investigated lithostratigraphic units and subunits of the LHVC. a Represents the contribution of each parameter to the overall separation between the units and subunits as shown by factors F1 and F2. Each data point in b represents arithmetic means of all analyzed plugs for the respective unit or subunitsBack to article page