Benedetta Andreucci (*), Leszek Jankowski (**), Stefano Mazzoli (***), Rafal Szaniawski (°) & Massimiliano Zattin (*)
(*) Department of Geosciences, University of Padova, Italy. E-mail: benedetta.andreucci@studenti.unipd.it
(**) Polish Geological Institute, Cracow, Poland.
(***) Department of Earth Sciences, University of Naples, Italy.
(°) Institute of Geophysics, Polish Academy of Science, Warsaw, Poland.