GNGTS 2018 - 37° Convegno Nazionale

634 GNGTS 2018 S essione 3.2 nuclear decommissioning at the Sellafield Site, UK . Sci. Total Environ. 566-567: 350-359, doi:10.1016/j. scitotenv.2016.04.212. Lapenna V.; 2017: Resilient and sustainable cities of tomorrow: the role of applied geophysics . Boll. Geof. Teor. App. 58 (4): 237-251. Mehta S., Bastani M., Lalehmir A., Pedersen L.B.; 2017: Resolution and sensitivity of boat-towed RMT data to delineate fracture zones - Example of the Stockholm bypass multi-lane tunnel . J. Applied Geoph. 139 :131-143. Mielby S., Eriksson I., Campbell D., de Beer J., Bonsor H., Le Guern C., Van der Krogt R., Lawrence D., Ryzynski G.; 2016: Opening the subsurface for the cities of tomorrow . TU1206 COST Sub-Urban WG2 Report. Mucciarelli M., Bianca M., Ditommaso R., Vona M., Gallipoli M.R., Giocoli A., Piscitelli S., Rizzo E., Picozzi M.; 2011: Peculiar earthquake damage on a reinforced concrete building in San Gregorio (L’Aquila, Italy): site effects or building defects? . Bull. Earth Eng. 9 (3): 825-840. PerroneA., Zeni G., Piscitelli S., PepeA., LoperteA., Lapenna V., Lanari R.; 2006: Joint analysis of SAR interferometry and Electrical Resistivity Tomography surveys for investigating ground deformation: the case-study of Satriano di Lucania (Potenza, Italy). Engineering Geology. 88 : 260–273. Piscitelli S., Rizzo E., Cristallo F., Lapenna V., Crocco L., Persico R., Soldovieri F.; 2007: GPR and microwave tomography for detecting shallow cavities in the historical area of ‘‘Sassi of Matera’’ (southern Italy) . Near Surf Geoph. 5 (4): 275-284. Showstack R.; 2014: Scientists call for a renewed emphasis on urban geology . Eos Trans. Am. Geophy. Unio. 95 : 431–432. Solari L., Ciampalini A., Raspini F., Bianchini S., Zinno I., Bonano M., Manunta M., Moretti S., Casagli N.; 2017: Combined use of C- and X-Band SAR data for subsidence monitoring in urban area . Geosc. 7 (2): 21.doi. org/10.3390/geosciences7020021. MULTIVARIATE MODELLING OF GEOPHYSICAL TOMOGRAPHIC DATA TO IDENTIFY A TECTONIZED AREA P. Capizzi 1,2 , A. Carollo 1 , M. Gasparo Morticelli 1 , R. Martorana 1,3 , A. Sulli 1,3 1 Università degli Studi di Palermo, Dipartimento di Scienze della Terra e del Mare (DiSTeM), Palermo, Italy 2 Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italy 3 Istituto Nazionale di Geofisica e Vulcanologia, Centro Nazionale Terremoti, Roma, Italy Introduction. An integrated analysis approach, based on geological investigations and 2D high-resolution shallow geophysical data, was proposed along a slope in the Bellolampo landfill area (Palermo, Italy) where the presence of a fault zone was hypothesized. Geophysical surveys included electrical resistivity tomography (ERT), induced polarization tomography (IPT) and seismic refraction tomography (SRT) techniques. The inversion of single geophysical parameter often does not allow to justify the complexity of the subsoil structures. The most appropriate solution should be to add additional physical or geological information so to get a constrained geological model. However, it is not at all easy to work with multivariate datasets due to the lack of well-defined relationships between different parameters. A solution can be a joint inversion procedure with mathematical constraints that favoured final models providing similar spatial distribution of the discontinuities (Gallardo and Meju 2007; 2011). In addition, the use of post-inversion techniques of independent univariate models can help to understand the relationships between different observable parameters (Bedrosian et al., 2007; Dell’Aversana 2001; Di Giuseppe et al., 2014). In particular, these techniques have shown excellent results when applied to seismic and electrical tomography data (Bohm et al., 2017; Capizzi et al., 2017; Gallardo and Meju 2003; 2004). Geological model. The study area is located in the northern sector of the Palermo Mountains where theMesozoic carbonate platform succession pertaining to the Panormide paleogeographic