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Time Domain EM Soundings for the Delineation of the Fresh Water - Salt Water Interface in Eastern Canada Islands.

Giraud, Jérémie; Chouteau, Michel C.; Bouchedda, Abderrezak (2014). Time Domain EM Soundings for the Delineation of the Fresh Water - Salt Water Interface in Eastern Canada Islands. In: 76th European Association of Geoscientists and Engineers Conference and Exhibition 2014: Experience the Energy - SPE EUROPEC 2014, 16-19 juin 2014, Amsterdam, Pays-Bas.

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Résumé

A hydrogeophysical study involving electromagnetic and electric methods to map depths to the saltwater-freshwater interface into coastal aquifers was carried out. Time domain electromagnetic (TDEM) soundings were acquired along electric resistivity tomography (ERT) profiles perpendicular to the coastline in the Magdalen Islands (Eastern Canada). Departures from hydrogeological models allowed evaluating the influence of water pumping on the studied aquifers. As a result, except in zones closer to the pumping wells, a good agreement between the hydrogeological model and the position of the interface estimated by the coupling of TDEM and ERT is observed.

Type de document: Document issu d'une conférence ou d'un atelier
Mots-clés libres: eau douce; eau salée; Canada
Centre: Centre Eau Terre Environnement
Date de dépôt: 18 nov. 2020 21:55
Dernière modification: 18 nov. 2020 21:55
URI: http://espace.inrs.ca/id/eprint/4255

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