Tullio Pescatore (*), Silvio Di Nocera (**), Fabio Matano (*,**) & Felice Pinto (*)
(*) Department of Geological and Environmental Sciences, University of Sannio, Benevento. E-mail: pescatore@unisannio.it; fpinto@unisannio.it
(**) Department of Earth Science, University of Naples "Federico II". E-mail: sildinoc@unina.it; matano@unina.it