Paleogeographic and paleoenvironmental evolution in northwestern Santa Cruz (Argentina), and its influence on human occupation dynamics during the late Pleistocene- early Holocene

Horta, Luis Rubén; Marcos, Maria Alejandra; Sacchi, Mariana; Bozzuto, Damián Leandro; Georgieff, Sergio Miguel; Mancini, María Virginia; Civalero, María Teresa

doi:10.1016/j.palaeo.2018.11.037

Cited by 15 publications

(16 citation statements)

References 12 publications

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“…These variations in lake levels may have been related to the balance of the ice masses that produced local advances and retreats of glaciers. For the area of Pueyrredón Lake (Horta, 2014) and Perito Moreno National Park (Horta et al, 2019), propose the location of the glacial front approximately on the current border between Argentina and Chile, which extends southwards of this study area.…”

Section: Discussionmentioning

confidence: 93%

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

Horta

Belardi

Georgieff

et al. 2019

Quaternary International

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This paper presents the paleogeographic reconstructions of flooded areas of the Tar-San Martín lacustrine system during the late Pleistocene-Holocene. The dimensions of lacustrine and glaciolacustrine levels of this basin are higher than the current levels of the lakes. The organic matter of lake levels recorded on stratigraphic profiles was described, sampled and dated using AMS, while other paleobathymetric indicators were also identified (height of the fan-delta apex and paleo-coast levels). Deriving out of the reconstruction of flooded areas it was established that the lake system was formed before 28 ka ago and would have reached its maximum expansion around 12 ka ago. The first hunter-gatherer occupation of the basin (11 ka) corresponds to the period of initial contraction of the lake system and the composition of the current configuration of the coastlines. This scenario would have allowed the exploration of western areas and the gradual incorporation of the forest to the action range of hunter-gatherer populations. Similarly, the levels of lakes Tar and San Martín would not have hindered the movement of human populations through the steppe throughout the Holocene.

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Section: Discussionmentioning

confidence: 93%

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

Horta

Belardi

Georgieff

et al. 2019

Quaternary International

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“…West-East plant physiognomies reconstructed by pollen analysis in the Deseado Massif at 47°S (Brook et al, 2015; de Porras, 2010; Horta et al, 2016, 2019; Mancini, 2002). Evidence of human occupation is indicated at each locality with a triangle.…”

Section: Discussionmentioning

confidence: 99%

“…During the early Holocene (around 8500 cal yr BP), the vegetation was represented by grass steppe associated with dwarfshrubs in La Martita, La Gruta, Alero Cárdenas and Lago (Brook et al, 2015;de Porras, 2010;Horta et al, 2016Horta et al, , 2019Mancini, 2002). Evidence of human occupation is indicated at each locality with a triangle.…”

Section: Comparison With Other Records (Regional Scale)mentioning

confidence: 99%

Paleoenvironmental analysis of wet meadow in the Deseado Massif: Implications for the Holocene occupation of Argentinian Patagonia

Mosquera

Mancini

2021

The Holocene

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Paleoenvironmental data from wet-meadow environments in the arid-semiarid region of Patagonia are still incipient and the paleoenvironmental records came from pollen sequences of caves and rockshelters. The main reasons to study wetland records are their undisturbed (by humans) sedimentologic continuity, in contrast to deposits in rock shelters and caves; and their regional presentation of environmental changes that can be compared to archeological data. The aim of this paper is to evaluate the past hydrological dynamic of a wet-meadow from Deseado Massif and its relationship with the human occupation. For this purpose, we present the results of the sediment and pollen analysis of Mallín La Primavera wet-meadow that provide a sequence starting in the mid-Holocene. The results indicate a lower water table in the mallín prior to 6900 cal yr BP. Sediment analysis indicates low energy sedimentation environment with flood events and very low energy streams. Human occupational data show chronological discontinuities in mid-Holocene in several regions of Patagonia and the southern cone. In the studied region, two chronological hiatuses (7828–6434 cal yr BP and 3005–2710 cal yr BP) where recognized that appear to correlate with shrub steppes, indicating dry conditions. These conditions may explain the lack of archeological radiocarbon dates in the area during this period. The integration of sediment and pollen results from the Deseado Massif indicates dry and windy conditions for the middle Holocene. The lack of archeological radiocarbon dates would have been influenced by the loss of moisture in water sources such as springs and their associated wet meadows ( mallines).

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“…En este trabajo presentamos los resultados de una serie de prospecciones realizadas en el cañadón Caracoles, provincia de Santa Cruz. Se trata de un acercamiento al área esteparia luego de varios años de investigación en las cuencas lacustres cordilleranas (Aschero et al, 2009(Aschero et al, , 2019aFernández et al, 2019;Horta, Marcos, Bozzuto, Mancini y Sacchi 2016;Horta et al, 2019;entre otros). Estas investigaciones se enmarcan en proyectos mayores que tienen como objetivo explorar las relaciones existentes entre las ocupaciones de los ambientes cordilleranos (cuenca del lago Pueyrredón-Cochrane y zona del Parque Nacional Perito Moreno, PNPM de aquí en adelante), las del área del río Pinturas, la altiplanicie sur (área de laguna de los Cisnes) y el borde oriental de la alta meseta del lago Buenos Aires (Figura 1A).…”

Section: Introductionunclassified

“…Por otro lado, también se amplió el conocimiento acerca de las similitudes en las características tecnológicas de los materiales líticos entre el PNPM, Cueva Milodón Norte 1 (ubicada en el lago Pueyrredón) y Cueva de las Manos . En este sentido, los proyectos que enmarcan este trabajo buscan evaluar las relaciones a lo largo del Holoceno entre las diferentes áreas mencionadas con el fin de rastrear la movilidad y la posible existencia de territorios y/o circuitos de interacción social con cierta estabilidad temporal (Aschero et al, 2019a;Fernández et al, 2019;Horta et al, , 2019; entre otros). Esta continuidad de las interacciones a lo largo del tiempo habría estado dada por las evidencias de los vínculos entre la zona de estepa y cañadones de Cueva de las Manos y la de las cuencas lacustres cordilleranas desde los momentos iniciales de ocupación, hace alrededor de 10.000 años.…”

Section: Introductionunclassified

Prospecciones en la confluencia de los cañadones Caracoles-Pinturas. Santa Cruz, Argentina

Sacchi¹,

Bozzuto²,

Ucedo³

et al. 2021

Arq

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Se presentan los primeros resultados de los relevamientos realizados en la confluencia de los cañadones Caracoles y Pinturas, en el noroeste de la provincia de Santa Cruz. Entre las tareas realizadas se destaca la ubicación de los sitios identificados por Gradin y colaboradores, un primer registro del arte rupestre en uno de ellos y la realización de transectas dirigidas. El análisis preliminar del material lítico recuperado mostró la utilización de rocas silíceas de muy buena calidad y de obsidiana para la confección de raspadores y puntas de proyectil pedunculadas. Uno de los objetivos finales de estos trabajos es identificar la profundidad temporal en el uso de este espacio particular para evaluar el papel que pudo haber tenido en la circulación humana hacia los sectores cordilleranos. Si bien los sondeos realizados no brindaron evidencias que pudieran datarse, la presencia de fragmentos cerámicos los vincula con ocupaciones que se ubicarían en el Holoceno tardío.

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Paleogeographic and paleoenvironmental evolution in northwestern Santa Cruz (Argentina), and its influence on human occupation dynamics during the late Pleistocene- early Holocene

Cited by 15 publications

References 12 publications

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

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

Paleoenvironmental analysis of wet meadow in the Deseado Massif: Implications for the Holocene occupation of Argentinian Patagonia

Prospecciones en la confluencia de los cañadones Caracoles-Pinturas. Santa Cruz, Argentina

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