A multidisciplinary approach to determine the structural geometry of hard-rock aquifers. Application to the Plancoet migmatitic aquifer (NE Brittany, W France)-Reference-Cited by-同舟云学术

A multidisciplinary approach to determine the structural geometry of hard-rock aquifers. Application to the Plancoet migmatitic aquifer (NE Brittany, W France)

Published:2006-09-01 Issue:5 Volume:177 Page:227-236
ISSN:1777-5817
Container-title:Bulletin de la Société Géologique de France
language:en
Short-container-title:

Author:

Durand Véronique¹,Deffontaines Benoît²,Leonardi Véronique³,Guerin Roger⁴,Wyns Robert⁵,de Marsily Ghislain⁶,Bonjour Jean-Luc⁷

Affiliation:

1. UMR Sisyphe, UPMC, case 123, 4 place Jussieu, 75252 Paris cedex 05, France, veronique.durand@ccr.jussieu.fr

2. Université Marne-la-Vallée, Bât IFI, laboratoire G2I, 5 Bd Descartes, Champs-sur-Marne, 77454 Marne-La-Vallée cedex 2, France, benoit.deffontaines@univ-mlv.fr

3. UMR Sisyphe, UPMC, case 123, 4 place Jussieu, 75252 Paris cedex 05, France, veronique.leonardi@ccr.jussieu.fr

4. UMR Sisyphe, UPMC, case 123, 4 place Jussieu, 75252 Paris cedex 05, France, guerin@ccr.jussieu.fr

5. BRGM, CDG/MA, BP 6009, 45060 Orléans cedex 02, France, r.wyns@brgm.fr

6. UMR Sisyphe, UPMC, case 123, 4 place Jussieu, 75252 Paris cedex 05, France, gdm@ccr.jussieu.fr

7. Nestlé Waters MT, BP 101, 88804 Vittel cedex, France, jean-luc.bonjour@waters.nestle.com

Abstract

Abstract A new multidisciplinary methodology is developed to determine the structural geometry of hard-rock aquifers. The Plancoët migmatitic basement, chosen as an example for the use of this methodology, is studied both at a regional (300 km2) and a local (4 km2) scale. The regional mapping, based on field mapping of the tectonic structures and the weathered layers, on geostatistics and on aerial photographs and Digital Elevation Model (DEM) analyses, demonstrates the influence of the tectonic structures on the weathering processes. Some geo-electric investigations, added to the first mapping at the local scale, lead to the building of a local geometrical model of the aquifer.

Publisher

EDP Sciences

Subject

Geology

Link

https://pubs.geoscienceworld.org/sgf/bsgf/article-pdf/177/5/227/2966734/227.pdf

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