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Wardell, N.
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Wardell, N.
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- PublicationRestrictedA structural and geophysical approach to the study of fractured aquifers in the Scansano-Magliano in Toscana Ridge, southern Tuscany, Italy(2009-07)
; ; ; ; ; ; ; ; ; ;Francese, R.; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy ;Mazzarini, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia ;Bistacchi, A.; Dipartimento di Geologia e Geotecnologia, Università di Milano Bicocca, Milano, Italy ;Morelli, G.; Geostudi Astier S.r.l., Livorno, Italy ;Pasquarè, G.; Dipartimento di Geologia, Università di Milano, Milano, Italy ;Praticelli, N.; Dipartimento di Geoscienze, Università di Padova, Padova, Italy ;Robain, H.; Institute de Recherche pour le Développement, Bondy Cedex, France ;Wardell, N.; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy ;Zaja, A.; Dipartimento di Geoscienze, Università di Padova, Padova, Italy; ; ; ; ; ; ; ; 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.217 23 - PublicationOpen AccessFirst results from the CROP-11 deep seismic profile, central Apennines, Italy: evidence of mid-crustal folding(2006)
; ; ; ; ; ; ; ; ; ; ; ; ; ;Billi, A.; Dipartimento di Scienze Geologiche, Universita` 'Roma Tre', Rome, Italy ;Tiberti, M. M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia ;Cavinato, G. P.; Istituto di Geologia Ambientale e Geoingegneria, CNR, Rome, Italy ;Cosentino, D.; Dipartimento di Scienze Geologiche, Universita` 'Roma Tre', Rome, Italy ;Di Luzio, E.; Istituto di Geologia Ambientale e Geoingegneria, CNR, Rome, Italy ;Keller, J. V. A.; ChevronTexaco Energy Technology Co., San Ramon, CA, USA ;Kluth, C.; Department of Geology and Geological Engineering, Colorado School of Mines, Golden, USA ;Orlando, L.; Dipartimento di Idraulica, Trasporti e Strade, Universita` ‘La Sapienza’, Rome, Italy ;Parotto, M.; Dipartimento di Scienze Geologiche, Universita` 'Roma Tre', Rome, Italy ;Praturlon, A.; Dipartimento di Scienze Geologiche, Universita` 'Roma Tre', Rome, Italy ;Romanelli, M.; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy ;Storti, F.; Dipartimento di Scienze Geologiche, Universita` 'Roma Tre', Rome, Italy ;Wardell, N.; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy; ; ; ; ; ; ; ; ; ; ; ; The CROP-11 deep seismic profile across the central Apennines, Italy, reveals a previously unknown, mid-crustal antiform here interpreted as a fault-bend fold-like structure. The seismic facies and gravity signature suggest that this structure consists of low-grade metamorphic rocks. Geomorphological, stratigraphic and tectonic evidence in the overlying shallow thrusts suggests that this structure developed in early to mid-Messinian time and grew out of sequence in late Messinian– Pliocene time. The out-of-sequence growth may reflect a taper subcriticality stage of the Apenninic thrust wedge, which induced renewed contraction in the rear.296 869