Geoelectrical and hydro-chemical monitoring of karst formation at the laboratory scale

Abstract. Ensuring sustainable strategies to manage water resources in karst reservoirs requires a better understanding of the mechanisms responsible for conduits formation rock mass and development detection methods these hydrological geochemical processes. In this study, we monitored electrical conductivity two limestone core samples during controlled dissolution experiments. We interpret results with physics-based model describing porous medium as effective structural parameters that are tortuosity constrictivity. obtain constrictivity is more affected by calcite compared tortuosity. Based on our experimental data sets from literature, show characteristic Johnson length valuable witness impact linking properties.