INGEIS   05370
INSTITUTO DE GEOCRONOLOGIA Y GEOLOGIA ISOTOPICA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Isotopic evidence in Holocene camelids from the southern Puna
Autor/es:
MONDINI. M.; PANARELLO, H.O.
Lugar:
Mendoza
Reunión:
Conferencia; 12th International Conference ICAZ; 2014
Institución organizadora:
Internarional Council for Archaeology
Resumen:
Camelid
bones from Early and early MiddleHolocene archaeological sites ca. 10000
BP-6000 BP- from the southernArgentinean Puna have been analyzed to assess prehistoric
camelid isotopic ecology and diet as indicated by d13C and d15N values. The
samples are from hunter-gatherer occupations at sites Quebrada Seca 3, Cueva
Salamanca 1, and Peñas de la Cruz 1.1, located in Antofagasta de la Sierra,
Catamarca, in a high altitude dessert above 3500 m.a.s.l. Wild
camelids,including the vicuña (Vicugna vicugna) and the larger guanaco (Lama
guanicoe),have been the staple prey in the region throughoutthe Holocene. Some fifty camelid bone collagen samples are
informed here, most of which have not been reported before, and a few that were
the first to be described for the region in this time period are included for
comparative purposes. The mean carbon isotope value (d13C) is -16.9 permil,
ranging from -20.1permil to -10.4 permil. The analyses suggest that camelid
consumption of C4 and C3 plants has been on average about 2:3, and there
appears to be no strong correlation with temporal, altitudinal or other
variations. The mean nitrogen isotope value (d15N) is 7.7permil, samples
ranging from 4.3 permil to 10.8 permil. The C/N ratios, which average 3.4, are
consistent with the good sample preservation observed macroscopically.