Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina)
The Laguna del Diamante Reserve, in the Province of Mendoza (Argentina), a protected area in a volcanic caldera (around 15 km in diameter), encloses the Maipo Volcano, 5,323 m (a snow and ice-capped volcano), and the Diamante Laguna at 3,300 m a. s. l., which constitutes an important water resource...
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Gebruder Borntraeger
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ftconicet:oai:ri.conicet.gov.ar:11336/3018 2023-10-09T21:52:16+02:00 Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) Alonso, Victoria Trombotto, Dario Tomas application/pdf http://hdl.handle.net/11336/3018 eng eng Gebruder Borntraeger info:eu-repo/semantics/altIdentifier/doi/10.1127/0372-8854/2012/0098 info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/zfg/detail/57/79903/Mapping_and_permafrost_altitudes_in_a_periglacial_?af=crossref http://hdl.handle.net/11336/3018 Alonso, Victoria; Trombotto, Dario Tomas; Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina); Gebruder Borntraeger; Zeitschrift Fur Geomorphologie; 57; 2; 6-2013; 171-186 0372-8854 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Mountain Landscape Periglacial Environment Permafrost Altitude Diamante Caldera Laguna del Diamante Reserve Central Andes https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1127/0372-8854/2012/0098 2023-09-24T18:21:59Z The Laguna del Diamante Reserve, in the Province of Mendoza (Argentina), a protected area in a volcanic caldera (around 15 km in diameter), encloses the Maipo Volcano, 5,323 m (a snow and ice-capped volcano), and the Diamante Laguna at 3,300 m a. s. l., which constitutes an important water resource for the province. A geomorphological map, made on an ASTER image from aerial photographs and corroborated by fieldwork, reflects how this area, although previously glaciated, is at present an outstanding periglacial environment with a few residual glaciers. Talus slopes, debris cones, alluvial fans, debris flow deposits, landslides and rockglaciers cover the Maipo flanks and the slopes surrounding the caldera. Periglacial landforms, occurrence of ice found during fieldwork, and rockglaciers were used to make a first approach to determine permafrost altitude. The inferior limit of quasi continuous permafrost at south exposition, detected by ice in a shelter in different years, is presently calculated at 3,870 ma. s. l. approximately. In the same valley however, and considering the noses of cryoforms with creeping permafrost, cryogenic activity is observed at a height of approx. 3,750 m a. s. l. In other sites of the area, cryoforms reach down to even 3,600 m with signs of inactivity. Historic registers from 1951–1952 indicated a height below 3,850 m a. s. l. as lower permafrost limit. Palaeo - permafrost was identified at 3,400–3,500 m a. s. l. approximately on the foot of the southern slope of the Maipo Volcano. At present, the zone, still in a paraglacial state, is characterized by intense cryodynamics and it is considered adequate to be proposed as “type region”. Das Naturschutzgebiet Laguna del Diamante liegt in der Provinz Mendoza, Argentinien und umfasst eine vulkanische Kaldera (von ca. 15 km Durchmesser), die den mit Schnee und Eis bedecken Maipo-Vulkan mit 5323 m Höhe und die Diamante Lagune auf 3300 m Höhe einschließt. Die Lagune ist aktuell ein wichtiges Wasserreservoir für die Provinz Mendoza. Die hiermit ... Article in Journal/Newspaper Ice permafrost CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Diamante ENVELOPE(-48.500,-48.500,-82.667,-82.667) Vulkan ENVELOPE(156.404,156.404,61.679,61.679) Maipo ENVELOPE(-59.676,-59.676,-62.488,-62.488) Zeitschrift für Geomorphologie 57 2 171 186 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Mountain Landscape Periglacial Environment Permafrost Altitude Diamante Caldera Laguna del Diamante Reserve Central Andes https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Mountain Landscape Periglacial Environment Permafrost Altitude Diamante Caldera Laguna del Diamante Reserve Central Andes https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Alonso, Victoria Trombotto, Dario Tomas Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
topic_facet |
Mountain Landscape Periglacial Environment Permafrost Altitude Diamante Caldera Laguna del Diamante Reserve Central Andes https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Laguna del Diamante Reserve, in the Province of Mendoza (Argentina), a protected area in a volcanic caldera (around 15 km in diameter), encloses the Maipo Volcano, 5,323 m (a snow and ice-capped volcano), and the Diamante Laguna at 3,300 m a. s. l., which constitutes an important water resource for the province. A geomorphological map, made on an ASTER image from aerial photographs and corroborated by fieldwork, reflects how this area, although previously glaciated, is at present an outstanding periglacial environment with a few residual glaciers. Talus slopes, debris cones, alluvial fans, debris flow deposits, landslides and rockglaciers cover the Maipo flanks and the slopes surrounding the caldera. Periglacial landforms, occurrence of ice found during fieldwork, and rockglaciers were used to make a first approach to determine permafrost altitude. The inferior limit of quasi continuous permafrost at south exposition, detected by ice in a shelter in different years, is presently calculated at 3,870 ma. s. l. approximately. In the same valley however, and considering the noses of cryoforms with creeping permafrost, cryogenic activity is observed at a height of approx. 3,750 m a. s. l. In other sites of the area, cryoforms reach down to even 3,600 m with signs of inactivity. Historic registers from 1951–1952 indicated a height below 3,850 m a. s. l. as lower permafrost limit. Palaeo - permafrost was identified at 3,400–3,500 m a. s. l. approximately on the foot of the southern slope of the Maipo Volcano. At present, the zone, still in a paraglacial state, is characterized by intense cryodynamics and it is considered adequate to be proposed as “type region”. Das Naturschutzgebiet Laguna del Diamante liegt in der Provinz Mendoza, Argentinien und umfasst eine vulkanische Kaldera (von ca. 15 km Durchmesser), die den mit Schnee und Eis bedecken Maipo-Vulkan mit 5323 m Höhe und die Diamante Lagune auf 3300 m Höhe einschließt. Die Lagune ist aktuell ein wichtiges Wasserreservoir für die Provinz Mendoza. Die hiermit ... |
format |
Article in Journal/Newspaper |
author |
Alonso, Victoria Trombotto, Dario Tomas |
author_facet |
Alonso, Victoria Trombotto, Dario Tomas |
author_sort |
Alonso, Victoria |
title |
Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
title_short |
Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
title_full |
Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
title_fullStr |
Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
title_full_unstemmed |
Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina) |
title_sort |
mapping and permafrost altitudes in a periglacial environment: the laguna del diamante reserve (central andes, argentina) |
publisher |
Gebruder Borntraeger |
url |
http://hdl.handle.net/11336/3018 |
long_lat |
ENVELOPE(-48.500,-48.500,-82.667,-82.667) ENVELOPE(156.404,156.404,61.679,61.679) ENVELOPE(-59.676,-59.676,-62.488,-62.488) |
geographic |
Argentina Diamante Vulkan Maipo |
geographic_facet |
Argentina Diamante Vulkan Maipo |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1127/0372-8854/2012/0098 info:eu-repo/semantics/altIdentifier/url/https://www.schweizerbart.de/papers/zfg/detail/57/79903/Mapping_and_permafrost_altitudes_in_a_periglacial_?af=crossref http://hdl.handle.net/11336/3018 Alonso, Victoria; Trombotto, Dario Tomas; Mapping and permafrost altitudes in a periglacial environment: The Laguna del Diamante Reserve (Central Andes, Argentina); Gebruder Borntraeger; Zeitschrift Fur Geomorphologie; 57; 2; 6-2013; 171-186 0372-8854 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1127/0372-8854/2012/0098 |
container_title |
Zeitschrift für Geomorphologie |
container_volume |
57 |
container_issue |
2 |
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171 |
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186 |
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