APPLICATION OF O-H-B-Sr ISOTOPE SYSTEMATICS TO THE EXPLORATION OF SALINIZATION AND FLUSHING IN COASTAL AQUIFERS : PRELIMINARY DATA FROM THE PIALASSA BAIONA ECOSYSTEM (ADRIATIC SEA)

Petrini, Riccardo; Dipartimento Di Scienze Della Terra, Università Di Trieste, Trieste, Pennisi, Maddalena; Istituto Di Geoscienze E Georisorse, CNR, Pisa, Adorni Braccesi, Alessandra; Istituto Di Geoscienze E Georisorse, CNR, Pisa, Stenni, Barbara; Dipartimento Di Scienze Geologiche, Ambientali E Marine, Università Di Trieste, Trieste, Flora, Onelio; Dipartimento Di Scienze Geologiche, Ambientali E Marine, Università Di Trieste, Trieste & Aviani, Umberto; Dipartimento Di Scienze Della Terra, Università Di Trieste, Trieste
O, H, B and Sr isotopes were identified from surface-waters, ground-waters and waters percolating in soils at the Pialassa Baiona lagoon and nearby inland areas. The preliminary data demonstrate the occurrence of both conservative mixtures between seawater and freshwaters and cation exchange at the salt/fresh water interface during the intrusion. The O and H isotopes indicate that the freshwater component in the binary mixing had the isotopic features of the rainwater from Apennine catchments. Coupled...