Boron Isotopes in the Mount Vulture Groundwaters (Southern Italy): Constraints for the Assessment of Natural and Anthropogenic Contaminant Sources

Figure 2

Piper diagram. Circles are for bicarbonate alkaline-earth and alkaline water (BAW) while squares represent the bicarbonate-sulphate-alkaline waters (high-salinity water, HSW). Data are from Parisi et al. [31, 33].