Abstract
A new approach to dating ancient obsidian artifacts based on the modeling of water diffusion profiles is evaluated using multiple archaeological test cases of known age. Hydrogen profiles from hydrated obsidian surfaces have been collected by secondary ion mass spectrometry (SIMS). The H2O concentration versus depth profiles are modeled and diffusion ages have been produced. SIMS based dates for fourteen obsidian specimens of well-known age, ranging from 300-7000 years old, have been compared with radiocarbon ages. The convergence between the two dating methods is excellent and validates the new dating approach.
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Liritzis, I., Diakostamatiou, M., Stevenson, C.M. et al. Dating of hydrated obsidian surfaces by SIMS-SS. Journal of Radioanalytical and Nuclear Chemistry 261, 51–60 (2004). https://doi.org/10.1023/B:JRNC.0000030934.66579.54
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DOI: https://doi.org/10.1023/B:JRNC.0000030934.66579.54