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Keywords:

  • STRONTIUM;
  • ISOTOPES;
  • PROVENANCE STUDIES;
  • ROMAN;
  • NATRON GLASS;
  • RAW MATERIALS;
  • BEACH SAND;
  • WESTERN MEDITERRANEAN

The provenancing of Roman natron glass is one of the most challenging problems in the field of archaeometry. Although the use of Sr and Nd isotope ratios and trace element signatures as an indication of provenance has proven promising, there are still many unknowns. In this study, the influence of the different raw materials on the final Sr isotopic composition of Roman natron glass is examined. It is shown that the 87Sr/86Sr ratio in natron glass is significantly influenced by the silicate fraction of the sand used and does not always provide a clear indication of the lime source used.