Zinc isotopes from archaeological bones provide reliable tropic level information for marine mammals

Abstract

McCormack et al. present the first comparison of archaeological δ66Zn from bone material compared with traditional δ15 N and δ13 C values derived from collagen samples over a large geographic area. This study shows that the inclusion of δ66Zn analysis can provide otherwise inaccessible supplementary dietary information and more robust trophic level estimations.