Lithic resources and vectors of interaction in the central pampas of Argentina: an approach from the use of the obsidian by Heider, Guillermo, Salgán, María Laura, Neme, Gustavo, Gil, Adolfo

“…By means of the X-ray Fluorescence technique, three sources of obsidian were identified that link local groups with resources from the western mountain range and foothills, between 250 and 575 km apart. In this sense, the technological strategy applied for its management allows confirming the infrequent presence of obsidian in the equipment of hunter-gatherers in the Pampean region, introduced as part of social interaction networks between populations.…”
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The social landscape of central Argentina during the Pleistocene-Holocene transition (ca. 11000-9000 BP) by Rivero, Diego, Heider, Guillermo

“…The archaeological record corresponding to the Pleistocene-Holocene Transition in Central Argentina (ca. 11,000 - 9000 BP) is evaluated from the perspective of Network Analysis and Landscape Learning, to understand the Social Landscape in which the individuals interacted with other groups that were socially and/or spatially apart. We analyze the circulation of lithic raw materials used for manufacturing tools, as well as the use of symbolic resources organized according to style in projectile points. …”
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