Geoelectrical and hydro-chemical monitoring of karst formation at the laboratory scale - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Hydrology and Earth System Sciences Année : 2023

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

Résumé

Ensuring sustainable strategies to manage water resources in karst reservoirs requires a better understanding of the mechanisms responsible for conduits formation in the rock mass and the development of detection methods for these hydrological and geochemical processes. In this study, we monitored the electrical conductivity of two limestone core samples during controlled dissolution experiments. We interpret the results with a physics-based model describing the porous medium as effective structural parameters that are tortuosity and constrictivity. We obtain that constrictivity is more affected by calcite dissolution compared to tortuosity. Based on our experimental results and data sets from the literature, we show that the characteristic Johnson length is a valuable structural witness of calcite dissolution impact linking electrical and hydrological properties.
Fichier principal
Vignette du fichier
hess-27-417-2023.pdf (4.28 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

insu-03974833 , version 1 (09-02-2023)

Identifiants

Citer

Flore Rembert, Marie Léger, Damien Jougnot, Linda Luquot. Geoelectrical and hydro-chemical monitoring of karst formation at the laboratory scale. Hydrology and Earth System Sciences, 2023, 27, pp.417-430. ⟨10.5194/hess-27-417-2023⟩. ⟨insu-03974833⟩
48 Consultations
24 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More