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Magallania (Punta Arenas)

versión On-line ISSN 0718-2244

Resumen

TESSONE, AUGUSTO et al. CARBON STABLE ISOTOPES IN PATAGONIA MERIDIONAL: DATA FROM THE SALITROSO LAKE BASIN (SANTA CRUZ PROVINCE, ARGENTINA). Magallania [online]. 2005, vol.33, n.2, pp.21-28. ISSN 0718-2244.  http://dx.doi.org/10.4067/S0718-22442005000200003.

This work presents and discusses the carbon isotope data obtained from the analysis of human bone remains from 25 individuals of the locale of Sierra Colorada (Salitroso lake basin), 19 of which have been dated directly by 14C-AMS to between ca. 2750 and 300 cal. BP. This information enables us to examine diet composition through the Late Holocene and to compare the δ13C values within sex and age categories at intra-population level. We have also examined the chemical, elemental, and isotopic properties of bone samples in order to evaluate the degree of preservation of the primary isotopic signal and their suitability as palaeodiet indicator. As a contribution to isotope ecology, we supply new δ13C values for local samples of plants and guanacos. The results obtained highlight the importance of terrestrial ecosystems in the diet of these populations and their low or negligible intake of marine resources.

Palabras clave : Carbon stable isotopes; Diet; Late Holocene.

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