Hydrodynamics in Evaporate-Bearing Fine-Grained Successions Investigated through an Interdisciplinary Approach: A Test Study in Southern Italy—Hydrogeological Behaviour of Heterogeneous Low-Permeability Media

Figure 1

(a) Areal distribution of Messinian deposits (black: outcrops; grey: buried deposits) in Italy and location of the study area. (b) Hydrogeological map of the study area (piezometric contour lines related to February 2007). Legend: 1: pyroclastic deposits; 2: Messinian deposits; 3: borehole used to reconstruct the groundwater flow net; 4: monitoring borehole; 5: spring; 6: former Pozzo del Sale spring; 7: rainwater sampler; 8: potentiometric contour line related to the shallower groundwater (upper subsystem) (m asl); 9: main groundwater flow direction in the upper subsystem; 10: groundwater flow direction in the lower subsystem; 11: geophysical section.