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Se presentan nuevas evidencias de representaciones rupestres halladas en un alero de la Puna de Jujuy asignadas a grupos de cazadores recolectores del Holoceno Temprano/Medio. Se trata de pinturas novedosas por ser figurativas y no mayormente abstracto-geometricas como en otros sitios del area. Los resultados del analisis fisicoquimico efectuado a microfragmentos de pinturas adosados al soporte, pigmentos hallados en capa y relictos de pigmento rojo encontrados en una mano de mortero permiten reconstruir las tecnicas de produccion y tratamientos aplicados a los pigmentos, y discutir los mecanismos de seleccion de las materias primas utilizadas para la ejecucion de las pinturas. Finalmente, se discuten las implicaciones espaciales y cronologicas de la distribucion de los motivos geometricos y figurativos en la Puna. Palabras clave : arte rupestre; cazadores recolectores; Holoceno Temprano; Holoceno Medio; Puna de Atacama. Abstract This paper presents new evidence on rupestrian art from a rock shelter in the Puna of Jujuy, attributed to Early/Middle Holocene hunter-gatherers. Figurative rather than abstract-geometric, these paintings differ from those found in the area so far. The physicochemical analysis of the paint on rock walls, pigments from different occupational levels, and red pigments found on a stone pesde, allow us to reconstruct how pigments were made both identifying the raw materials used and the way they were selected. Finally, we discuss the spatial and chronological implications with reference to the distribution of geometric and figurative paintings in the Puna. Palabras clave : rock art; hunter-gatherers; Early Holocene; Middle Holocene; Puna of Atacama.

Estudio arqueológico y fisicoquímico de pinturas rupestres en Hornillos 2 (Puna de Jujuy)