Valenzuela, Daniela
Camelids on the Coast? Investigating Trade and Early Camelid Herding through Stable Isotope Analysis of Formative to Late Intermediate Period Textiles from the Atacama Desert, Chile
This research presents stable carbon and nitrogen isotope data of camelid fiber (n=238) from the coast of Arica, the Lluta Valley, and Azapa Valley – all located in the hyper-arid core of the Atacama Desert in northern Chile. Samples included are attributed to the Formative (1000 BCE– 200 CE), Middle (200 CE – 1000CE), and Late Intermediate (1000 CE – 1450 CE) periods. The principal aim of this research was to determine whether camelid fiber uncovered at archaeological sites on the coast were likely obtained from locally managed camelid herds, or whether fiber was traded from the highlands. The majority of samples are consistent with a highland origin; however, a small group of samples is consistent with having come from animals herded outside the highlands, possibly locally in the coastal river valleys. There was also an increase in fiber δ13C between the Formative and Late Intermediate Periods, indicating an increased reliance on maize and agricultural intensification between these periods.
Author Keywords: Camelid, Carbon, Chile, Keratin, Nitrogen, Stable isotope analysis