PUNTAS PEDUNCULADAS PEQUEÑAS: VARIABILIDAD MORFOMÉTRICA Y DISTRIBUCIÓN ESPACIAL EN EL NORTE DE LA PROVINCIA DEL CHUBUT (PATAGONIA ARGENTINA) DURANTE EL HOLOCENO TARDÍO
SMALL STEMMED POINTS: MORPHOMETRIC VARIABILITY AND SPATIAL DISTRIBUTION IN THE NORTH OF CHUBUT PROVINCE (ARGENTINE PATAGONIA) DURING THE LATE HOLOCENE
Anahí Banegas, María Soledad Goye and Julieta Gómez Otero
The results of morphometric and technical analyses of 103 small stemmed projectile points from the north of Chubut province (Patagonia, Argentina) are presented. These artifacts were collected in three ecologically differentiated but adjacent environments: the maritime coast, the middle and the lower valley of the Chubut River, and the northern-central plateau. The specimens were obtained during archaeological research and from a private collection. The goal of this research is to identify trends and to explore their relationship with technological-based decisions and the circulation of raw materials, objects, designs, and information among different groups. Although highly intra and interarea morphological diversity is recorded, three subtypes predominate: straight or slightly convex triangular edges, stems with straight edges and concave bases. Two of these subtypes have not yet been identified in the archaeological literature from other parts of Patagonia. Statistical analyses – ANOVA and PCA, carried out on the metric attributes of the stem, did not show significant differences. Chalcedony, obsidian, and fossilized wood from spatially circumscribed sources were proven to be the most frequent raw materials among the three areas, supporting different models of intensification of exchanges in central and northern Patagonia by the end of late Holocene.