Abstract

AMBRUSTOLO, Pablo  and  CASTRO, Alicia. Coastal hunter-gatherers lithic technology: The functional analysis of a set of scrapers from The alero 4 site (north coast of Santa Cruz, Argentina). Comechingonia [online]. 2018, vol.22, n.2, pp.1-10. ISSN 1851-0027.

In the framework of the analysis of the prehistoric occupations registered in rock shelters from the north coast of Santa Cruz, stratigraphic studies were carried out at the Alero 4 site. In this sense, an excavation was carried out on a surface of approximately 2m², which presented a stratigraphy depth of approximately 40 cm. A high frequency of lithic artifacts was recorded, among which were mainly flakes. Also, it is interesting to highlight the identification a high frequency of scrapers, which is a finding of relevance in virtue of the studies carried out to date in the area. The trends observed in the techno-morphological study of the pieces indicate the existence of certain geographical restrictions in the procurement and exploitation of the rocks used to made and use the scrapers. In this paper we intend to complement and discuss the information by virtue of the data generated in the functional analysis of the pieces, which somehow contradict said affirmation. In addition, the studies will evaluate the site's functionality within the framework of the settlement system and the mobility of the groups that occupied the area and generate new discussions regarding the scope of the technology of coastal hunter-gatherers.

Keywords : rock shelters - stratigraphic study - human mobility - Patagonia.