La variabilidad morfológica en raspadores en el centro-oeste de Santa Cruz, Patagonia meridional. Su evaluación en términos temporales

Abstract

RMA La variabilidad morfológica en raspadores en el centro-oeste de Santa Cruz, Patagonia meridional. Su evaluación en términos temporales Endscrapers morphological variability in central-western of Santa Cruz province, Southern Patagonia. A temporal evaluation Resumen En este trabajo evaluamos comparativamente raspadores del Holoceno medio y tardío del centro-oeste de Santa Cruz (Patagonia) a los fines de discutir acerca de la variabilidad de los conjuntos en el contexto de cambios ambientales que se dieron durante el Holoceno. Dicha comparación abarca escalas espaciales y temporales amplias y se realiza sobre la base de variables morfológicas y métricas. Los resultados indican que no existen diferencias significativas entre los raspadores de uno y otro período a excepción del espesor de aquellos confeccionados en sílice. Se discuten las implicancias en términos de las estrategias implementadas por los cazadores-recolectores en contextos ambientales específicos. Palabras clave: Raspadores; Holoceno medio y tardío; Variabilidad; Obsidiana y sílice; Patagonia. Abstract This paper compares endscrapers from Middle and Late Holocene in central-western Santa Cruz province (Patagonia) in order to evaluate their variability in a context of environmental changes that occurred during the Holocene. Research includes large spatial and temporal scales. Morphological and metric variables were considered. Results indicate that there are no significant differences between endscrapers from each period; the exception goes for the thickness of siliceous endscrapers. These results are discussed in terms of the strategies hunter-gatherers implemented in specific environmental contexts.

Technology from hunting blinds: A study of lithic assemblages in Late Holocene stone structures from Patagonia (Argentina)

“…The specific characteristics of structures and the hunting strategies in which they were involved were discussed in previous works (Aragone & Cassiodoro 2006;Aragone et al 2010;Cassiodoro 2011: 171;2019;Dellepiane 2019: 320;Flores Coni 2014;2019, Flores Coni et al 2021Goñi et al 2011Goñi et al -20122016, among others). The analysis based on site scales revealed that some structures were clearly related to hunting per se while others were related to more general activities and may have also functioned as temporal residential camps (Cassiodoro 2011: 171;Dellepiane 2019: 320;Flores Coni 2019a). The latter was also suggested for structures in Somuncurá Plateau, in northern Patagonia (Gradin 1971;Miotti et al 2016).…”

“…Parapetos may be found isolated or in groups of two or more structures with scarce metres of distance in between. Some exceptional sites have been recorded with more than 10 structures associated in each of the areas under study (except Asador Plateau) (Cassiodoro et al 2016;Flores Coni 2014;2019a;Goñi et al 2016). As for their emplacement, it is variable and there is no clear pattern.…”

“…Their walls are usually oriented against the prevailing westerly winds and immediately available rocks were used in their construction. Their shape is mainly semi-circular though circular and straight constructions were also registered (Cassiodoro 2011: 147;Flores Coni 2014;2019a;Flores Coni et al 2021;Goñi et al 2011Goñi et al -2012Gradin 1959Gradin -1960. The earliest chronology for these sites starts 2000 years BP.…”

“…As for their emplacement, it is variable and there is no clear pattern. They can be found near water, lagoons, or rivers, and also in open plains (Cassiodoro et al 2016;Flores Coni 2019a;Flores Coni et al 2021).…”