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      ISÓTOPOS ESTABLES Y CONSUMO DE MAÍZ EN EL CENTRO OCCIDENTE ARGENTINO: TENDENCIAS TEMPORALES Y ESPACIALES Translated title: STABLE ISOTOPES AND MAIZE CONSUMPTION IN CENTRAL WESTERN ARGENTINA: TEMPORAL AND SPATIAL TRENDS

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          Abstract

          Con la intención de evaluar la incorporación del maíz en las poblaciones del centro occidente de Argentina, el límite prehispánico de la agricultura americana, el trabajo explora la variabilidad espacial y cronológica en los valores de δ13C en colágeno, apatita y δ15N en muestras humanas. El estudio incluye 104 muestras arqueológicas humanas registradas entre 32° S y 40° S con cronologías de los últimos 6.000 años. También se presenta información sobre la ecología isotópica de la región. Los resultados muestran una baja correlación tanto en latitud como en tiempo con los valores de δ13C. Los valores que señalan una importancia significativa del maíz en la dieta se registran en el sector más septentrional y durante los últimos 1.500 años. A pesar de esa tendencia, hay una notoria variabilidad entre muestras, inclusive contemporáneas y localizadas en los mismos sectores. Los resultados debilitan la supuesta dispersión gradual en espacio y tiempo del maíz mostrando un patrón de alta heterogeneidad en cuanto a la importancia del maíz en el límite sur de la dispersión agrícola.

          Translated abstract

          This work explores the chronological and spatial variability of collagen and apatite δl3C and collagen δI5N values for human remains, in order to evaluate the incorporation ofcorn in the diet in central-western Argentina, the pre-Hispanic Southern limit of American agriculture. The study includes 104 samples of archaeological human remains recovered from sites between 32° and 40° S and with chronologies spanning the last 6,000 years. The research also presents information on the isotopic ecology of the región. The δI3C results show a low correlation with both latitude and time. The individuals who appear to have a significant amount ofmaize in the diet are from the northemmost sector and date to the last 1,500 years. Despite that tendency, however, there is extensive variability among all individuals, including those from the same time andplace. The results weaken the supposed gradual dispersion in space and time ofcorn, showing instead a high degree of heterogeneity for the importance ofmaize near the southern limit of its agricultural diffusion.

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          Spatial, Species, and Temporal Variations in the13C/12C Ratios of C3Plants: Implications for Palaeodiet Studies

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            Mass Spectrometric Studies of Carbon 13 Variations in Corn and Other Grasses

            Our experience in radiocarbon dating has shown that dates obtained from samples of corn cob and kernels are usually too young compared with dates from wood samples. Since other laboratories have also commented on the same problem, a study of C13/C12ratios in corn and other plant materials has been undertaken.
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              Reconstruction of African human diet using bone collagen carbon and nitrogen isotope ratios

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                Author and article information

                Journal
                chungara
                Chungará (Arica)
                Chungará (Arica)
                Universidad de Tarapacá. Facultad de Ciencias Sociales y Jurídicas. Departamento de Antropología (Arica, , Chile )
                0717-7356
                December 2010
                : 42
                : 2
                : 497-513
                Affiliations
                [01] Mendoza orgnameMuseo de Historia Natural de San Rafael Argentina adolfogil@ 123456arqueologiamendoza.com
                [02] orgnameUniversity of South Florida USA rtykot@ 123456cas.usf.edu
                Article
                S0717-73562010000200011 S0717-7356(10)04200211
                10.4067/S0717-73562010000200011
                07c22eba-17aa-4d89-89f4-afc64889df7d

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : November 2008
                : September 2009
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 52, Pages: 17
                Product

                SciELO Chile

                Categories
                Bioantropología

                Central Western Argentina,pre-Hispanic maize,human diet,stable isotopes,centro occidente argentino,maíz prehispánico,dieta humana,isótopos estables

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