Shallow-seismic site characterizations of near-surface geology at terme Caronte area, Lamezia Terme.

In the framework of PON AMICUS, the Institute for Coastal Marine Environment (IAMC-CNR) of Naples, in partnership with University of Calabria (DiBEST Department), carried out at "Terme Caronte", in the Lamezia Terme territory, a geophysical survey. The main goal of the survey was the shallow (i.e. first 150 m) seismic imaging of the subsurface of this area. Four High Resolution (HR) seismic reflection/refraction profiles (total length about 1500 m) were acquired using an array of receivers consisting of 96/72 channels with a Swept Impact Seismic Source (VibSist-500). Seismic studies were integrated with MASW and MAM analysis and n.8 Horizontal to Vertical Spectra Ratio (HVSR) investigation. The performance of an active and passive seismic study was planned to study two main targets: A) The internal geometry of fan deposits (which characterize Caronte aquifer) and their stratigraphic relationships with the Pliocene clays, the crystalline basement and with the aquifer system of Eufemia-Lamezia plain. B) The shallower, more recent sequences, to detect possible buried faults linked to master Lamezia Fault (LF), a NW-SE trending seismogenetic trascurrent fault, and the subsequent land-use planning along this active and capable fault zone. This study aims to develop an improved seismic stratigraphic framework for this area in order to better understand intrinsic processes of fan construction and its tectono-sedimentary evolution linked to LF. The analyzed seismic sequences will be calibrated with borehole data, to recognize seismic units distribution and the possible presence, in the hangingwall of LF, of buried fault segments linked with the principal displacement zone.