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AMS 14C dating of early human occupation of southern South America
Steele, James ; Politis, Gustavo
Journal of archaeological science, 2009-02, Vol.36 (2), p.419-429
[Periódico revisado por pares]
Kidlington: Elsevier Ltd
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Título:
AMS 14C dating of early human occupation of southern South America
Autor:
Steele, James
;
Politis, Gustavo
Assuntos:
Accelerator mass spectrometry
;
America and Arctic regions
;
Colonization
;
North America
;
Palaeoindian
;
Preceramic cultures
;
Prehistory and protohistory
;
South America
É parte de:
Journal of archaeological science, 2009-02, Vol.36 (2), p.419-429
Descrição:
The time of appearance of a persistent and demographically-viable hunter-gatherer population in late Pleistocene southern South America must be determined by evaluating evidence from as large as possible a sample of candidate archaeological sites in the region. We co-ordinated the AMS dating of multiple bone and charcoal samples from previously-excavated strata at the following sites: Arroyo Seco 2, Paso Otero 5, Piedra Museo, and Cueva Tres Tetas (all in Argentina), and Cueva del Lago Sofia 1 and Tres Arroyos (both in Chile). With one possible exception, we did not obtain new results to confirm earlier observations of pre-Clovis-age cultural activity at any of the sites considered in this study. The possible exception, Arroyo Seco 2, is considered in detail elsewhere [Politis G., Gutierrez M.A., Scabuzzo, C. (Eds), in press. Estado actual de las Investigaciones en el sitio 2 de Arroyo Seco (región pampeana, Argentina). Serie Monográfica INCUAPA 5. Olavarría]. However, our results for the samples which were the most preferred indicators of cultural events (hearth charcoal and cut-marked bone) confirm that people were in the southern cone of South America at or soon after 11,000 BP (13,000 cal BP). Considered alongside recent age estimates for the Clovis culture in North America, these results imply the contemporaneous emergence of a consistent and archaeologically-robust human occupation signal at widely-separated locations across the Western Hemisphere. Such findings suggest that Palaeoindian demic expansion may have involved more than one terminal Pleistocene dispersal episode.
Editor:
Kidlington: Elsevier Ltd
Idioma:
Inglês
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