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The Southern Deseado Massif (Patagonia, Argentina): Spatial Knowledge and Changes in its Use from the Pleistocene-Holocene Transition to the Late Holocene

Author(s): Nora Franco ; Danae Fiore ; Agustín Acevedo ; María Virginia Mancini ; George A. Brook

Year: 2017

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Summary

The semiarid Southern Deseado Massif (SDM) is highly variable in geology, geomorphology and the spatial and temporal availability of water. To the south it transitions into open lowlands and basaltic plateaus dissected by canyons that extend to the Chico River. The La Gruta 1 rock shelter in the extreme south of the SDM has provided the oldest evidence of human logistic occupation in the area, with ages between ca. 12,800 and 12,000 cal yrBP, when conditions were wetter than today. Human use and knowledge of the area’s lithic resources increased between ca. 10,700 and 7,700 cal yrBP, although rock art is scanty and isolated. Following a dry period, there was an increase in human presence from ca. 5,550 cal yrBP, a change in lithic technology, and more frequent rock art, including adult and child hand motifs, in places with better water availability. Hunting blinds in areas devoid of outcrops and complex geometric rock art motifs are attributed to the last 2,000 years, being the only gap in occupation during the Late Holocene probably related to the effect of the Medieval Climatic Anomaly


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Cite this Record

The Southern Deseado Massif (Patagonia, Argentina): Spatial Knowledge and Changes in its Use from the Pleistocene-Holocene Transition to the Late Holocene. Nora Franco, Danae Fiore, Agustín Acevedo, María Virginia Mancini, George A. Brook. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 430041)


Keywords


Spatial Coverage

min long: -93.691; min lat: -56.945 ; max long: -31.113; max lat: 18.48 ;

Record Identifiers

Abstract Id(s): 16531

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America