Distribución espacial del registro arqueológico en la unidad de paisaje terrazas, cuenca media del río coyle (provincia de Santa Cruz, Argentina)

Abstract

El registro arqueológico de la cuenca del río Coyle se evalúa a escala regional reforzando las tendencias ya observadas en cuanto al uso de la esta cuenca y las cronología de las ocupaciones cazadoras recolectoras. En este sentido, no parecen haber existido variaciones significativas en la forma de uso de la unidad de paisaje Terrazas a lo largo del tiempo. Esta cuenca habría sido un sector de poca intensidad de uso bajo estrategias eminentemente residenciales. Dichas características sugieren diferencias con respecto a la forma de uso de las cuencas de los ríos Santa Cruz y Gallegos y con la costa marina.

As a result to cultural research management studies on the archaeological record new information is added to the Terraces landscape unit at the Coyle river middle basin (Santa Cruz Province), between the Santa Cruz and Gallegos fluvial basins. The analysis is focused on the spatial distribution of the archaeological record on the surface of geoforms (gullies, closed basins and terraces). Artifactual classes and densities, as well as lithic raw materials, were studied using qualitative and quantitative methods. The evidence indicates that the same types of activities (rock provisioning and flintknapping) were developed along the different geoforms. Nevertheless, artifactual densities show differences related to human intensity use as shown at closed basins. The high frequency of glass scrapers recorded and the results from two new radiocarbon dates place human populations towards the end of the late Holocene. Mollusks from the Atlantic coast and obsidian artifacts suggest the relations with areas located North, East and West. The Terraces landscape unit would have been used in a relatively homogeneous way throughout time, indicating a low human intensity related to residential mobility strategies and to the circulation between the Santa Cruz and Gallegos river basins.