FE ISOTOPIC RATIOS IN SELECTED GROUNDWATER SAMPLES FROM THE RAVENNA AND FRIULI COASTAL PLAINS, NE ITALY AND SIGNIFICANCE FOR THE ENVIRONMENT

摘要

High Fe concentrations (from 1.34 to 12.72 mg/L) were measured by Pezzetta et al. (2011) in groundwater samples from the Lower Friulan Plain near the north Adriatic seacoast. The research has unveiled a positive correlation between Fe concentrations and groundwater salinization (0.9-19679 mg/L Cl) and a particularly wide range of δ~(56)Fe (from -5.3 to +2.15‰ relative to IRMM-14 international standard, Castorina et al., 2013), compared with literature data. Furthermore, a positive correlation between δ~(56)Fe and Fe concentrations has been found.