GNGTS 2019 - Atti del 38° Convegno Nazionale

686 GNGTS 2019 S essione 3.2 in this work is based on the creation of a preliminary model obtained through interpretation with a sophisticated technique of the first arrival times based on the methods of “Wave Fronts” (Brückl, 1987 and references therein). Starting from the preliminary model, the computational code for tomographic modelling was used; the code is based on a “raytracing” with curvilinear rays and the Delta tv method (Gebrande and Miller, 1985), in order to improve the recognition and localization of anomalous structures. Fig. 2 - Geophysics data models; the view sections are displayed from above. a) resistivity tomography; b) seismic tomography in P waves; c) seismic tomography in Sh waves; d) GPR survey. The geognostic drills are projected on the a), b) and c) profiles. Yellow lines in d) mark the detected fractures.