A structural and geophysical approach to the study of fractured aquifers in the Scansano-Magliano in Toscana Ridge, southern Tuscany, Italy

R. Francese F. Mazzarini A. Bistacchi G. Morelli G. Pasquare N. Praticelli Henri Robain 1 N. Wardell A. Zaja
1 Bioemco - Biogéochimie et écologie des milieux continentaux
Abstract : Fresh water availability has recently become a serious concern in the Italian Apennines, as various activities rely on a predictable supply. Along the ridge between Scansano and Magliano in Toscana, in southern Tuscany, the situation is further complicated by contamination of the nearby alluvial aquifers. Aquifers locally consist of thin fractured reservoirs, generally within low-permeability formations, and it can be difficult to plan the exploitation of resources based on conventional techniques. An integrated study based on geological data investigated the link between tectonics and groundwater circulation, to better define the hydrological model. After the regional identification of fault and fracture patterns, a major structure was investigated in detail to accurately map its spatial position and to understand the geometry and properties of the associated aquifer and assess its exploitation potential. The subsurface around the fault zone was clearly imaged using ground probing radar, two-dimensional and three-dimensional resistivity tomography, and three-dimensional shallow seismic surveys. The vertical and horizontal contacts between the different geological units of the Ligurian and Tuscan series were resolved with a high degree of spatial accuracy. Three-dimensional high-resolution geophysical imaging proved to be a very effective means of characterising small-scale fractured reservoirs.
Keywords : Italy Fractured rocks Geophysical methods Tectonics Groundwater exploration
Type de document :
Article dans une revue
Hydrogeology Journal, Springer Verlag, 2009, 17 (5), pp.1233-1246. 〈10.1007/s10040-009-0435-1〉
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https://hal-bioemco.ccsd.cnrs.fr/bioemco-00455997
Contributeur : Henri Robain <>
Soumis le : jeudi 11 février 2010 - 15:10:33
Dernière modification le : lundi 17 décembre 2018 - 01:26:41

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BIOEMCO | ENS-PARIS | INRA | AGROPARISTECH | UPEC | UPEC-UPEM | IEES | UPMC | PSL | SORBONNE-UNIVERSITE

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R. Francese, F. Mazzarini, A. Bistacchi, G. Morelli, G. Pasquare, et al.. A structural and geophysical approach to the study of fractured aquifers in the Scansano-Magliano in Toscana Ridge, southern Tuscany, Italy. Hydrogeology Journal, Springer Verlag, 2009, 17 (5), pp.1233-1246. 〈10.1007/s10040-009-0435-1〉. 〈bioemco-00455997〉

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