Chronology of bathymetric variations of the Pueyrredón-Posadas-Salitroso lacustrine system during the Late Pleistocene to Early Holocene

Paleogeographic reconstruction of the Tar – San Martín lacustrine system during late Pleistocene to early Holocene: Landscape availability and hunter-gatherer circulation (Santa Cruz, Argentina)

“…In the Argentinian Patagonian mountain range the sedimentary sequences represented by till, glaciolacustrine, lacustrine and glaciofluvial facies show the evolution of sedimentary environments in the transition between the late Pleistocene -early Holocene (Garcia et al, 2015;Horta et al 2015 and. The interaction between fluvial, lacustrine and glaciolacustrine depositional systems in the Pleistocene -Holocene transition was also registered in stratigraphic columns in New Zealand (Marger and Ftzisimons, 2007).…”

“…These changes would be directly related to the activity of glaciers and the consequent generation, expansion, sedimentation and contraction of the paleolakes that covered wider areas than the current ones (Valley et al, 2007;Hein, 2010;Horta et al 2015 and.…”

“…Variations in the levels of Patagonian lakes have been studied by different authors (Stine and Stine 1990;Tatur et al, 2002;Bell 2008Bell , 2009McCulloch and Morello. 2009;Ariztegui et al, 2010;Horta et al 2015 and. The integration of geological, archaeological and palynological information of the basins of Pueyrredón Lake and the Perito Moreno National Park (Santa Cruz, Argentina), of between 31 ka and 5 ka, indicates a very dynamic paleogeographic and paleoenvironmental evolution that would have conditioned the flow of huntergatherer populations (Horta et al, 2015.…”

“…2009;Ariztegui et al, 2010;Horta et al 2015 and. The integration of geological, archaeological and palynological information of the basins of Pueyrredón Lake and the Perito Moreno National Park (Santa Cruz, Argentina), of between 31 ka and 5 ka, indicates a very dynamic paleogeographic and paleoenvironmental evolution that would have conditioned the flow of huntergatherer populations (Horta et al, 2015. The study of glacial geomorphology and paleogeographic reconstructions proposes advances and retreats of glaciers during the late Pleistocene in the area which includes the Buenos Aires (Argentina) -General Carrera (Chile) lake system (Glasser et al, 2004 and2008;Bell 2008Bell , 2009Hein et al, 2010;Smedley et al, 2016).…”

Arte rupestre y demarcación territorial: el caso del grupo estilístico B1 en el área Río Pinturas (Santa Cruz, Argentina)

“…Las últimas investigaciones geológicas conducidas por Horta y Georgeff en la cuenca del Posadas-Pueyrredón indican que el amplio paleolago que unificaba esa cuenca pasa a las condiciones geomorfológicas actuales hacia los 5200 años AP (Horta et al, 2015). Las ocupaciones de Cerro de los Indios 1 datadas hasta el momento en las dos áreas excavadas ocurren a partir de los 3800 años AP, pero es posible pensar ocupaciones anteriores, hacia ca.…”