Obsidiana negra en sitios arqueológicos de cazadores- recolectores terrestres en Patagonia Austral
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1995
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Los análisis químicos en muestras de obsidiana negra encontradas en sitios arqueológicos de cazadores-recolectores terrestres del extremo sur de Patagonia, tanto en Magallanes, Chile como en el sur de Santa Cruz, Argentina, sugieren que esta obsidiana se derivó de más al norte en la Patagonia Central, donde la obsidiana negra es común alrededor del Parque Nacional Perito Moreno y el lago Posadas. La presencia de esta obsidiana negra en Patagonia Austral implica una importante dispersión humana de este material. Aunque la cronología de la dispersión se ignora, la obsidiana negra en los sitios al sur del río Santa Cruz aparentemente representa una ocupación tardía.
Chemical analysis of black obsidian samples found in terrestrial hunter-gatherers archaeological sites of southernmost Patagonia, in both Magallanes, Chile, and southern Santa Cruz, Argentina, suggest that this obsidian is derived from further north in central Patagonia where black obsidian is common around Parque Nacional Perito Moreno and Lago Posadas. The presence of this black obsidian in southernmost Patagonia implies significant human dispersal of this material. Although the timingof this dispersal is poorly constrained, black obsidian in the sites south of the Rio Santa Cruz appears to represent very late stage occupation.
Chemical analysis of black obsidian samples found in terrestrial hunter-gatherers archaeological sites of southernmost Patagonia, in both Magallanes, Chile, and southern Santa Cruz, Argentina, suggest that this obsidian is derived from further north in central Patagonia where black obsidian is common around Parque Nacional Perito Moreno and Lago Posadas. The presence of this black obsidian in southernmost Patagonia implies significant human dispersal of this material. Although the timingof this dispersal is poorly constrained, black obsidian in the sites south of the Rio Santa Cruz appears to represent very late stage occupation.
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Anales del Instituto de la Patagonia, Vol. 23, pp. 105-109, 1995.