Landform analysis of the Pueyrredón Lake area in northwestern Santa Cruz, Argentina

Horta, Luis Rubén; Busnelli, José; Georgieff, Sergio Miguel; Aschero, Carlos

doi:10.1016/j.quaint.2013.07.039

Cited by 10 publications

(7 citation statements)

References 18 publications

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“…1). Although some are also found in the northern sector, they are smaller in this region (Horta et al, 2013a).…”

Section: Geomorphologymentioning

confidence: 77%

“…There is abundant evidence of the last glaciation in the study area (Glasser et al, 2004(Glasser et al, , 2008Hein et al, 2009Hein et al, , 2010Hein et al, , 2011Horta et al, 2013a), including glaciated valleys; hanging valleys; roche moutonn ee; grooved and striated rocks; delta fans; delta-fluvial layers; and lacustrine, glaciolacustrine, and moraine sedimentary deposits (Fig. 1).…”

Section: Geomorphologymentioning

confidence: 99%

See 1 more Smart Citation

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

Horta

Georgieff

Aschero

2015

Quaternary International

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“…1). Although some are also found in the northern sector, they are smaller in this region (Horta et al, 2013a).…”

Section: Geomorphologymentioning

confidence: 77%

Section: Geomorphologymentioning

confidence: 99%

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

Horta

Georgieff

Aschero

2015

Quaternary International

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“…And (iii) Landsat imagery and digital elevation models (ASTERGDEM, with a resolution of 1 arc-second, and GMTDE2010, with shows the major moraine systems east of Lago Argentino, Brazo Rico and Brazo Sur (Mercer, 1976;Strelin and Malagnino, 2000; and references therein), and south and east of Lago Toro and Lago Sarmiento respectively (Sagredo et al, 2011;García et al, 2012) The identified cirques were digitized on satellite images and aerial photos. These were superimposed on ASTERGDEM and a slope map to provide a suitable topographic context, which is useful in identifying morphologies in areas with complex terrains (Horta et al, 2013).The boundaries of the cirques were defined considering the criteria used by Evans and Cox (1995), Cossart et al (2012), Křižek et al (2012 and Barr and Spagnolo (2013). The crest-lines were considered as the upper limits of the cirques.…”

Section: Methodsmentioning

confidence: 99%

Factors controlling alpine glaciations in the Sierra Baguales Mountain Range of southern Patagonia (50º S), inferred from the morphometric analysis of glacial cirques

Araos

Roux

Kaplan

et al. 2018

andgeo

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The Sierra Baguales Mountain Range, forming the eastern foothills of the Southern Patagonian Andes, has well-developed alpine-glaciated landforms which present an ideal opportunity to study climatic and non-climatic factors that control cirque development and morphology. One hundred and forty-three glacial cirques were studied with reference to 14 morphometric attributes which were analyzed using statistical analysis and GIS methodologies. The cirques were classified into two types using cluster analysis complimented with a composite map based on the attributes, the latter technique that is applied to glacial cirque analysis for the first time. Type 1 cirques are associated with glacial processes isolated from the Southern Patagonian Ice Field (SPIF), developed under locally cold and dry climatic conditions. Type 2 glacial cirques are associated with older, more extensive glacial processes controlled by regional-scale climate variables and the presence of the Pleistocene Ice Sheet. The results show that the development of most of the glacial cirques has been controlled mainly by their aspect, exposure to solar radiation, Southern Hemisphere Westerly winds, and cirque floor slope. Finally, we concluded that our analyses show the evolution of cirques in the Sierra Baguales Mountain Range was not uniform. Cirque glaciers that developed to the west, close to the Southern Patagonian Ice field, have been more dynamic, and therefore their cirques experienced more erosion than those located to the east.

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“…Estas geoformas fueron retrabajadas por la acción del oleaje, que removilizó parcialmente los sedimentos originando barreras arenosas paralelas a la costa (espigas) de más de 1 km de longitud (Figura 7). La separación de los lagos Pueyrredón y Posadas está dada por una morrena (depósito glacial) sobre la cual en el extremo sur se formó el abanico-deltaico del río Furioso (Horta et al, 2012(Horta et al, , 2013. Por esta geoforma, de tan solo 200 m de ancho, se ubica la traza de la ruta provincial 39 (Figuras 7 y 8).…”

Section: Rasgos Geológicos Geomorfológicos E Hidrológicosunclassified

Posibilidades geoturísticas para el área de Lago Posadas, Patagonia Argentina. Sitios de interés geomorfológico

Torres¹,

Mazzoni²

2022

ICTUNPA

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En el presente trabajo se analizan las características geomorfológicas del paisaje del área de Lago Posadas, una pequeña localidad ubicada en el centro-oeste de la Provincia de Santa Cruz, Patagonia argentina. Conformada por 2.601 km², el área exhibe dos ambientescontrastantes, donde se manifiestan diferentes condiciones climáticas, relieves y biomas.Entre los elementos más destacados se encuentran el sistema hidrológico conformado por los lagos Pueyrredón y Posadas, modelado por procesos glaciales en el pasado y retrabajado por procesos fluviales y eólicos en el presente, y el Monte San Lorenzo y los macizos montañosos cercanos (Penitentes, Volcán, Hermoso), con rasgos geomorfológicos esculpidos por los glaciares desde el Último Máximo Glacial hasta la actualidad.La información fue obtenida de visitas al terreno, fuentes bibliográficas y cartográficas e interpretación de imágenes satelitales. Luego de describir el área, se proponen sitios y circuitos apropiados para el desarrollo de actividades vinculadas con el turismo alternativo en la región, particularmente geoturismo. Se brinda información explicativa sobre la génesis de estos paisajes y se aportan numerosas figuras que ilustran sobre los recursos turísticos existentes en el lugar y sus vistas más apropiadas.

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Landform analysis of the Pueyrredón Lake area in northwestern Santa Cruz, Argentina

Cited by 10 publications

References 18 publications

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

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

Factors controlling alpine glaciations in the Sierra Baguales Mountain Range of southern Patagonia (50º S), inferred from the morphometric analysis of glacial cirques

Posibilidades geoturísticas para el área de Lago Posadas, Patagonia Argentina. Sitios de interés geomorfológico

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