Strontium isotopic composition of Pliocene and Pleistocene molluscs from emerged marine deposits, North American Arctic

High-precision strontium (Sr) isotopic measurements were obtained for 53 Pliocene and Pleistocene molluscan shells from emerged marine deposits around the coasts of Arctic North America to test whether such data can be used for chronostratigraphic purposes. Although the data suggest that Sr isotopic data from young Arctic molluscan fossils may offer a viable dating method, criteria for screening altered shells must be devised before the technique can be considered a reliable chronostratigraphic tool. -from Authors