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Comechingonia
versión On-line ISSN 1851-0027
Resumen
CIRIGLIANO, Natalia A. y BORRAZZO, Karen. AVAILABILITY AND EXPLOITATION OF DARK FINE GRAINED ROCKS POTROK AIKE TYPE IN THE GALLEGOS-CHICO INTERFLUVE (SANTA CRUZ PROVINCE, ARGENTINA). Comechingonia [online]. 2021, vol.25, n.3, pp.51-60. ISSN 1851-0027.
This paper studies the relationship between the natural availability of dark fine-grained rocks Potrok Aike type (RGFO PKA) and their technological exploitation within a portion of the Gallegos and Chico river interfluve (central Pali Aike Volcanic Field, Santa Cruz province, Argentina). We analyze the natural abundance and attributes of RGFO PKA nodules locally available and assess the distribution and characteristics of archaeological lithic assemblages. The results obtained show: 1) the existence of spatial differences in rock natural availability, 2) the effective exploitation of local sources by hunter-gatherers, 3) variable intensity in quarrying activities across the study area sources, and 4) the small-scale anthropic transport of RGFO PKA nodules. While expanding the archaeological knowledge on RGFO PKA natural availability and their technological exploitation in the Pali Aike Volcanic Field, data provided here agree with the argument that the Gallegos-Chico interfluve was a key provisioning area for this lithic raw material as previous works showed.
Palabras clave : secondary lithic sources; nodules; land use; Patagonia.