Obsidian hydration dating and temperature controls in the Punta Negra region of Northern Chile

@inproceedings{Lynch1992ObsidianHD,
  title={Obsidian hydration dating and temperature controls in the Punta Negra region of Northern Chile},
  author={Thomas F. Lynch and Christopher Mark Stevenson},
  year={1992}
}
Abstract Effective hydration temperature (EHT) is essential for the computation of obsidian hydration dates. In the Atacama Desert, the scarcity of air-temperature records combines with extremes of elevation and local temperature to encourage, or even require, the use of buried thermal cells to record on-site mean annual temperatures. Compositional analysis (sourcing) and hydration rate development in the laboratory are also necessary, especially where other dating methods are unavailable to… CONTINUE READING