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| HAL : hal-00454925, version 1 |
| DOI : 10.1016/j.crte.2009.08.008 |
| Fiche détaillée |  Récupérer au format |
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| C. R. Geoscience 341, 10-11 (2009) 928-936 |
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| Review of Self-potential methods in Hydrogeophysics |
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| Laurence Jouniaux 1Alexis Maineult 1, 2 |
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| CNRS-INSU EC2CO-BGPhy and ECCO-PNRH-Waterscan Collaboration(s) |
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| (01/10/2009) |
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| The self-potential (SP) method is a passive geophysical method based on the natural occurrence of electrical fields on the Earth's surface. Combined with other geophysical methods, SP surveys are especially useful for localizing and quantifying groundwater flows and pollutant plume spreading, and estimating pertinent hydraulic properties of aquifers (water table, hydraulic conductivity). Laboratory experiments have shown that the involved coupling coefficients mainly depend on the fluid chemistry, conductivity and pH, and on the soil or rock properties. The interpretation of SP observations can be done qualitatively, for instance by correlation of SP gradients with water fluxes (through electrokinetics) or salt fluxes (through electro-diffusion). In recent years, the interpretation has been improved with the help of modelling or/and inversion of the Poisson equation and endeavours to estimate hydraulic parameters by means of the intensity of electric current sources caused by underground flows. |
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| 1 : | Institut de physique du globe de Strasbourg (IPGS) |
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CNRS : UMR7516 – INSU – Université Louis Pasteur - Strasbourg I |
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| 2 : | Institut de Physique du Globe de Paris (IPGP) |
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CNRS : UMR7154 – INSU – IPG PARIS – Université Pierre et Marie Curie - Paris VI – Université Paris-Diderot - Paris VII – Université de la Réunion |
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| 3 : | Géosciences hydrosciences matériaux constructions (Ghymac) |
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Université Sciences et Technologies - Bordeaux I – Université Michel de Montaigne - Bordeaux III |
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| 4 : | Interactions et dynamique des environnements de surface (IDES) |
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CNRS : UMR8148 – INSU – Université Paris Sud - Paris XI |
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| Domaine | : | Physique/Physique/Géophysique Planète et Univers/Sciences de la Terre/Géophysique Planète et Univers/Sciences de la Terre |
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| self-potential – electrokinetics – streaming potential – hydrogeophysics – electrochemical – water table – aquifer – pollution – inversion |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00454925, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00454925/fr/ | |
| oai:hal.archives-ouvertes.fr:hal-00454925_v1 | |
| Contributeur : Laurence Jouniaux | |
| Soumis le : Mardi 9 Février 2010, 14:12:47 | |
| Dernière modification le : Mardi 9 Février 2010, 14:31:01 | |
