Riverine influence in Sr isotope ratio of mollusk shells and relationship with foraminiferal assemblages in a Late Quaternary succession of the Po River Delta (Northern Italy)

The freshwater influence in the 87Sr/86Sr ratio of mollusk shells were analyzed within a Late Quaternary subsurface succession of the Po River Delta (core 187-S1). Sr isotope ratios of the Po and others rivers' (Brenta, Adige and Reno) waters, discharging in the Adriatic Sea, at about 30 km North and South of the Po Delta, show a domi¬nant contribution in the core area of fluvial water with isotope ratios remarkably lower than seawater values....