Early to Middle Holocene transition in the Pastos Chicos record, dry Puna of Argentina

Tchilinguirián, Pablo; Morales, Marcelo R.; Oxman, Brenda; Lupo, Liliana Concepción; Olivera, Daniel; Yacobaccio, Hugo D.

doi:10.1016/j.quaint.2012.03.006

Cited by 30 publications

(17 citation statements)

References 58 publications

(74 reference statements)

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“…Los estudios paleoambientales en las localidades de Pastos Chicos y Lapao consisten en el análisis de diatomeas, sedimentos, geomorfología y polen (Morales 2011, Oxman 2015, Tchilinguirian et al 2012, Oxman y Yacobaccio 2012, Pirola 2014.…”

Section: Estudios Paleoambientales En Las Localidades De Pastos Chicounclassified

“…Por último, entre 8100 -7317 años AP, dominan las bentonitas, lo que marca la instalación de las condiciones de aridez (Morales 2011, Tchilinguirian et al 2014. En el caso de Pastos Chicos, se llevaron a cabo análisis sedimentológicos (Tchilinguirian et al 2012), diatomeas (Morales 2011) y materia orgánica (Pirola 2014). Los análisis distinguen dos momentos paleoambientales.…”

Section: Estudios Paleoambientales En Las Localidades De Pastos Chicounclassified

“…Con este objetivo se ha aplicado un índice de humedad, que se calcula a partir de las variaciones en los porcentajes de las dos principales e indicadoras formaciones vegetacionales de la Puna (estepa herbácea y estepa arbustiva), de todos los registros polínicos trabajados por el equipo en el área para el periodo de investigación de este trabajo: Lapao 5 y Pastos Chicos 1-2 (Oxman y Yacobaccio 2014, Tchilinguirian et al 2012, Tchilinguirian et al 2014 a y b, Morales 2011, Oxman et al 2013 situados en el departamento de Susques y el Testigo Cruces 1 situado en la localidad de Barrancas en el departamento de Cochinoca (Morales et al 2016).…”

Section: Líneas De Evidencias: Análisis Polínicos Y Aprovisionamientounclassified

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Cambios ambientales y estrategias de aprovisionamiento de rocas durante el periodo 12000-4000 años AP en la puna de Jujuy, Argentina

Oxman

Hoguin

2018

Rev. Mus. Antrop.

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Section: Estudios Paleoambientales En Las Localidades De Pastos Chicounclassified

Section: Líneas De Evidencias: Análisis Polínicos Y Aprovisionamientounclassified

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Cambios ambientales y estrategias de aprovisionamiento de rocas durante el periodo 12000-4000 años AP en la puna de Jujuy, Argentina

Oxman

Hoguin

2018

Rev. Mus. Antrop.

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“…Cold-humid conditions characterizing the Upper Pleistocene would persist during the Early and even middle Holocene, and the present-arid environment could have developed by middle to upper Holocene (Sayago and Collantes, 1990;Lupo, 1998;Kulemeyer, 2005;Yacobaccio and Morales, 2005;Tchilinguirian et al, 2012).…”

Section: The Pleistocene-holocene Transition In the Andesmentioning

confidence: 99%

“…Inyoite were formed along the shoreline deposits during the lacustrine highstands. Following deglaciation the environment changed towards dry conditions (Lupo, 1998;Kulemeyer, 2005;Yacobaccio and Morales, 2005;Tchilinguirian et al, 2012). Climate could have exerted the evaporative concentration of the water table.…”

Section: Fig 8 Elco Profile In the Terrace Of El Colorado River (A)mentioning

confidence: 99%

Cambio hidrológico asociado al Último Maximo Glacial-Altitermal durante la transición Pleistoceno-Holoceno en el borde oriental de Puna Norte.

Steinmetz

Galli

2015

Andgeo

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ABSTRACT. The environment of the Andean Puna Plateau is mostly characterized by the dominance of evaporative processes due to aridity. Since the intermittent runoff lacks the morphodynamic competence to generate the present day landscape, authors have usually considered that the Puna landscape is a remnant feature of the Miocene arid-climate persistence. Then, a Quaternary-sensu lato-age was assigned to salars, alluvial fans and other geomorphologies. We present evidences from the endorheic depression of Guayatayoc-Salinas Grandes (GSG) located at 3,400 m a.s.l. in the eastern border of northen Puna. The basin includes a saline playa domain in the north (Guayatayoc Playa Lake) and a salt pan in the southern part (Salinas Grandes). We have identified two dissimilar processes originating the subdivision of the GSG depression. The characterization of those processes included sedimentological and geomorphological observations, as well as chronologies using luminescence and radiocarbon. Evidences reveal the development of a saline-lacustrine water body that is associated with the Last Glacial Maximum. During the Late Pleistocene and until ~13.8 cal kyr BP, lake shores were modelled in the front of distal-alluvial fans, the sedimentary aggradation was widespread, and associated with kaolinitic-clay accumulation, inyoite, and the formation of peat-deposits. An environmental change towards aridity occurred after 13.8 cal kyr BP, and wetter conditions returned during the early to middle Holocene, around 9 cal kyr BP. Then, incisive river dynamics accompanied the establishment of a playa lake, with montmorillonitic-fine sediments and ulexite generation during later Holocene. The subdivision of the GSG depression onset by the two following processes: 1. the topographic decoupling, that is associated with Las Burras's alluvial fan aggradation during Pleistocene; 2. the lacustrine regression phase at 13.8 cal kyr BP. Therefore, Guayatayoc and Salinas Grandes are saline systems functioning as a playa lake and a salt pan, respectively, since the Holocene, due to environmental constraints.

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Paleohydrological Changes in Highland Desert Rivers and Human Occupation, 7000‐3000 Cal. Yr B.P., South‐Central Andes, Argentina

et al. 2016

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This article focuses on local paleohydrological changes experienced by the Las Pitas and Miriguaca Rivers in the south‐central Andes of Argentina and their impacts on hunter‐gatherers as they transitioned to food‐producing communities 7000–3000 cal. yr B.P. Paleoenvironmental reconstruction based on geomorphology, alluvial sedimentology, and diatom evidence indicates a dry phase of reduced streamflow between ca. 6700 and 4800 cal. yr B.P. for the Las Pitas River, and 6600 and 3000 cal. yr B.P. for the Miriguaca River. A phase of more humid environmental conditions commenced after ca. 4900 cal. yr B.P. along the Las Pitas River, and after 3000 cal. yr B.P. along the Miriguaca River. Differences in the chronology and magnitude of hydrological changes along both rivers are related to topographic and hydrological characteristics of their respective watersheds. Higher catchment elevation and enhanced orographic precipitation favored greater sensitivity for the Las Pitas River to short humid events during the middle‐to‐late Holocene. The archaeological evidence suggests that the paleohydrological changes within these catchments played a significant role in human occupational dynamics such that the Las Pitas River offered better environmental conditions for human occupation relative to the Miriguaca River as foragers increasingly relied on plant and animal domestication.

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Early to Middle Holocene transition in the Pastos Chicos record, dry Puna of Argentina

Cited by 30 publications

References 58 publications

Cambios ambientales y estrategias de aprovisionamiento de rocas durante el periodo 12000-4000 años AP en la puna de Jujuy, Argentina

Cambios ambientales y estrategias de aprovisionamiento de rocas durante el periodo 12000-4000 años AP en la puna de Jujuy, Argentina

Cambio hidrológico asociado al Último Maximo Glacial-Altitermal durante la transición Pleistoceno-Holoceno en el borde oriental de Puna Norte.

Paleohydrological Changes in Highland Desert Rivers and Human Occupation, 7000‐3000 Cal. Yr B.P., South‐Central Andes, Argentina

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