Obsidiana verde en Tierra del Fuego y Patagonia : caracterización, distribución y problemáticas culturales a lo largo del Holoceno
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Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Sociales
Abstract
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La obsidiana verde como materia prima utilizada por los grupos cazadores recolectores prehistóricos de Fuego-Patagonia ha estado presente en la investigación macrorregional desde su descubrimiento arqueológico, en la década de 1950. Se presenta una nueva síntesis crítica y actualizada de los estudios en torno a esta materia prima volcánica y se discuten nuevos análisis geoquímicos, para comprender su relación con aspectos culturales como aprovisionamiento, distribución y tecnología. La localización exacta de la fuente de obtención es aún desconocida, pero indicadores arqueológicos y geológicos circunscriben su ubicación al sector del mar de Otway e isla Riesco, región de Magallanes, Chile. Se evalúan aspectos referidos a la distribución espacial y temporal del registro arqueológico de obsidiana verde, la presencia de un lapso de discontinuidad en su utilización y la discusión de su relevancia como evidencia de interacción cultural, entre grupos cazadores recolectores terrestres y marítimos, de oeste a este, y también entre el norte y sur del estrecho de Magallanes.
Green obsidian as raw material used by prehistoric hunter-gatherer groups of Fuego-Patagonia has been present in the macro-regional archaeological research since its discovery in the 1950s. A new critical synthesis and updated studies for this volcanic rock are presented and new geochemical analyses are discussed in order to understand their relation with cultural issues such as sourcing, distribution and technology. The exact occurrence of the source is still unknown, but archaeological and geological signs confine its location near Otway Sea and Riesco Island, Magallanes Region, Chile. We have evaluated aspects related to the spatial and temporal archaeological record’s distribution of green obsidian, to the discontinuity in its use and arguments of its relevance as evidence of cultural interaction between land and sea hunter-gatherers, from West to East and also between the North and South of the Strait of Magellan.
Fil: Morello, Flavia. Universidad de Magallanes; Chile.
Fil: Stern, Charles. University of Colorado; Estados Unidos.
Fil: San Román, Manuel. Universidad de Magallanes; Chile.
Green obsidian as raw material used by prehistoric hunter-gatherer groups of Fuego-Patagonia has been present in the macro-regional archaeological research since its discovery in the 1950s. A new critical synthesis and updated studies for this volcanic rock are presented and new geochemical analyses are discussed in order to understand their relation with cultural issues such as sourcing, distribution and technology. The exact occurrence of the source is still unknown, but archaeological and geological signs confine its location near Otway Sea and Riesco Island, Magallanes Region, Chile. We have evaluated aspects related to the spatial and temporal archaeological record’s distribution of green obsidian, to the discontinuity in its use and arguments of its relevance as evidence of cultural interaction between land and sea hunter-gatherers, from West to East and also between the North and South of the Strait of Magellan.
Fil: Morello, Flavia. Universidad de Magallanes; Chile.
Fil: Stern, Charles. University of Colorado; Estados Unidos.
Fil: San Román, Manuel. Universidad de Magallanes; Chile.
Keywords
Obsidiana verde, Cultura, Cazadores-recolectores, Arqueología, Tierra del Fuego, Región pampeana, Argentina, Holoceno medio, Holoceno tardío, Tecnología, Geología, Geoquímica, Siglo XX-Segunda mitad, Materia prima volcánica, Chile