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3D electrical resistivity tomography to locate DNAPL contamination around a housing estate

hal.structure.identifierInstitut de Mécanique et d'Ingénierie de Bordeaux [I2M]
hal.structure.identifierBureau de Recherches Géologiques et Minières [BRGM]
dc.contributor.authorNAUDET, Véronique
hal.structure.identifierBureau de Recherches Géologiques et Minières [BRGM]
dc.contributor.authorGOURRY, Jean-Christophe
hal.structure.identifierBureau de Recherches Géologiques et Minières [BRGM]
dc.contributor.authorGIRARD, F
hal.structure.identifierBureau de Recherches Géologiques et Minières [BRGM]
dc.contributor.authorMATHIEU, Francis
hal.structure.identifierBureau de Recherches Géologiques et Minières [BRGM]
dc.contributor.authorSAADA, Alain
dc.date.accessioned2021-05-14T09:56:40Z
dc.date.available2021-05-14T09:56:40Z
dc.date.issued2014
dc.identifier.issn1569-4445
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/77809
dc.description.abstractEnA 3D electrical resistivity survey is carried out downstream of a former coal refinery plant in France to determine the spatial extent of a DNAPL contaminant plume and to optimize the implantation of further boreholes. The site, which is located in the north of France, is the subject of an extensive conventional site investigation including the characterization of the contaminant source and natural attenuation monitoring of the plume. Previous geochemical and geophysical studies including 2D electrical resistivity profiles have shown a possible migration of the contaminant plume toward a housing estate, where no geochemical boreholes have been drilled. The purpose of this study was to achieve a real 3D imaging of the subsoil to locate the extent of the contaminant plume above the housing estate and determine the location of new boreholes. As geophysical measurements are difficult to perform in such an urban environment, a new electrical campaign was realized with innovative acquisition geometries and arrangement of surface electrodes in an L-shape, disposing electrodes in lines around the housing estate. Data were inverted in 3D with ERTLab software from Multi-Phase Technologies and Geostudi Astier. Results show a conductive plume emanating from old tar ponds and a slag heap that spreads through the housing estate. Based on these results, new boreholes were drilled in the housing estate, which confirm the extent of the contaminant plume estimated from the 3D electrical resistivity survey.
dc.language.isoen
dc.publisherEuropean Association of Geoscientists and Engineers (EAGE)
dc.title.en3D electrical resistivity tomography to locate DNAPL contamination around a housing estate
dc.typeArticle de revue
dc.identifier.doi10.3997/1873-0604.2012059
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
bordeaux.journalNear Surface Geophysics
bordeaux.page351-360
bordeaux.volume12
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-01171264
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01171264v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Near%20Surface%20Geophysics&rft.date=2014&rft.volume=12&rft.spage=351-360&rft.epage=351-360&rft.eissn=1569-4445&rft.issn=1569-4445&rft.au=NAUDET,%20V%C3%A9ronique&GOURRY,%20Jean-Christophe&GIRARD,%20F&MATHIEU,%20Francis&SAADA,%20Alain&rft.genre=article


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