1. Department of Earth Sciences, Sapienza University, Rome, Italy
2. Department of Earth and Marine Sciences, University of Palermo, Palermo, Italy
3. Instituto Oceanográfico da Universidade de São Paulo, Praça do Oceanográfico, São Paulo, Brazil
4. Institute of Environmental Geology and Geo-Engineering, National Research Council, Rome, Italy
5. Institute of Anthropic Impact and Sustainability in Marine Environment IAS – CNR, Consiglio Nazionale delle Ricerche – Torretta Granitola (TP), Granitola Torretta, Italy