1. Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi, 103, 41125 Modena, Italy
2. Research Institute for Geo-Hydrological Protection (IRPI), National Research Council (CNR), Corso Stati Uniti, 4, 35127 Padova, Italy
3. Office for Geology and Building Materials Testing, Autonomous Province of Bolzano, Via Val d’Ega, 48, 39053 Cardano, Italy