3D geological & geophysical modelling of Plateau de Sault (Eastern Pyrenees) for good water management - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année :

3D geological & geophysical modelling of Plateau de Sault (Eastern Pyrenees) for good water management

(1) , (1) , (1) , (1) , (1) , (1) , (1)
1

Résumé

Better constrain the geological geometries in 3 dimensions aids to improve subsequent hydrological modeling and simulations. The project "Plateau de Sault" (Eastern Pyrenees) aims to provide a better estimate and management of water resources of the region. The water flow occurs mostly underground via significant karst networks in a complex tectonic framework. Thus, a 3D geological model was built, as a prerequisite for hydrological studies, with the 3D GeoModeller software (©BRGM-Intrepid Geophysics) which is unique in interpolating complex geology using a potential field method. The construction of this 3D geological model has 3 main objectives: improve regional geology's knowledge, propose geometries for limestone urgonian bars and define hypothetical connections between different aquifers. Structures at depth have been constrained by direct calculation and gravimetric inversion of the geological model thanks to newly acquired gravimetric data (around 250 stations) and densities of formations established in laboratory from 52 rocks sampled in the field. This study demonstrates the importance of integrative tools as 3D geological modeling for good water management.
Fichier principal
Vignette du fichier
EAGE_Allanic_et_al_sault.pdf (778.34 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01519783 , version 1 (09-05-2017)

Identifiants

  • HAL Id : hal-01519783 , version 1

Citer

Cécile Allanic, Lucile Martel, Bernard Monod, Thomas Jacob, Gabriel Courrioux, et al.. 3D geological & geophysical modelling of Plateau de Sault (Eastern Pyrenees) for good water management. EAGE, Jun 2017, Paris, France. ⟨hal-01519783⟩

Collections

BRGM BRGM-DO
213 Consultations
173 Téléchargements

Partager

Gmail Facebook Twitter LinkedIn More