Cluster Analysis on Geophisical Parameters for Subsoil Investigation
G. Bohm, L. Baradello, A. Affatato and M.E. Poli
Event name: 23rd European Meeting of Environmental and Engineering Geophysics
Session: Integrated Approaches in Near-surface Geophysics II
Publication date: 03 September 2017
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In this work we present an application of cluster analysis on seismic and electrical data with the aim to identify the important structures present in the investigated area. To define the clusters we use the cross-plot representation of sesmic velocity vs. resistivity, obtained from the travel time tomography and the Electrical Resistivity Tomography (ERT) respectively. The seismic and electrical data were acquired in four 2D lines. The studied area belongs to the Quaternary front of the eastern Southern Alps in Northeastern Italy, characterized by the presence of a tectonic actvity which caused deformation of the Upper Pleistocene – Holocene deposits. The applied method allowed us to separate the zones with similar seismic and electrical properties to better distinguish the different structures buried in the investigated area. The results point out a discontinuity in the shallow structures, which testifies the presence of an important fault, assumed to exist in this area.