Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics
Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 m a.s.l.). These can be explained by various f...
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://dialnet.unirioja.es/servlet/oaiart?codigo=7702896 |
id |
ftdialnet:oai:dialnet.unirioja.es:ART0001427621 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Dialnet - Portada de revistas (Universidad de La Rioja) |
op_collection_id |
ftdialnet |
language |
English |
topic |
rock glacier permafrost active layer kinematics Climatic variability glaciar rocoso glaciar de escombros capa activa cinemática variabilidad climática |
spellingShingle |
rock glacier permafrost active layer kinematics Climatic variability glaciar rocoso glaciar de escombros capa activa cinemática variabilidad climática Trombotto Liaudat, Darío Bottegal, E. Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
topic_facet |
rock glacier permafrost active layer kinematics Climatic variability glaciar rocoso glaciar de escombros capa activa cinemática variabilidad climática |
description |
Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 m a.s.l.). These can be explained by various factors, not only external ones related to the climatic variability and altitude, but also by thermal-hydrological factors that destabilized its internal cryogenic structure. At Balcón I, situated on a sloping terrace of the rock glacier, a transient layer even showed definitive signs of permafrost degradation in the recent years, transforming it in a thermal talik. Long-term studies of surficial boreholes showed that the 0°C isotherm is higher in altitude than the active front of the rock glacier and it has risen 40 m in altitude since the 1990s. As consequence of the thermal changes of the active layer, the rock glacier shows abrupt movements, particularly in its terminal part. Thus geodesic measurements to obtain different speeds and directions were made. At the monitoring area of Balcón I Superior, which lies on a superimposed lobe, the geodesic measurement points revealed significant kinematic activity in the period May 2015 – February 2016, when the largest displacement was approximately 2 m to the South, developing an advance of the front over Balcón I. At Balcón II however, the points moved much less, in the order of 0.30 m yr-1. The present studies suggest that the largest cryogenic sedimentary movements are superficial, that is to say, they are located in the active layer and the supra-permafrost and are due to internal movements produced by melting water coming from the top of the cryoform, and from both sides of the upper basin of the valley. En el período 2008-2016 el glaciar de escombros de Morenas Coloradas, en los Andes Centrales de Mendoza, presentó en sus sitios de monitoreo Balcón I (3560 m s.n.m.), Balcón I Superior (3590 m s.n.m.) and Balcón II (3770 m s.n.m.) situaciones térmicas de capa activa ... |
format |
Article in Journal/Newspaper |
author |
Trombotto Liaudat, Darío Bottegal, E. |
author_facet |
Trombotto Liaudat, Darío Bottegal, E. |
author_sort |
Trombotto Liaudat, Darío |
title |
Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
title_short |
Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
title_full |
Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
title_fullStr |
Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
title_full_unstemmed |
Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics |
title_sort |
recent evolution of the active layer in the morenas coloradas rock glacier, central andes, mendoza, argentina and its relation with kinematics |
publishDate |
2020 |
url |
https://dialnet.unirioja.es/servlet/oaiart?codigo=7702896 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) ENVELOPE(-60.406,-60.406,-62.714,-62.714) ENVELOPE(-62.950,-62.950,-64.350,-64.350) |
geographic |
Argentina Talik Glaciar Rocoso Balcón |
geographic_facet |
Argentina Talik Glaciar Rocoso Balcón |
genre |
permafrost Talik |
genre_facet |
permafrost Talik |
op_source |
Cuadernos de investigación geográfica / Geographical Research Letters, ISSN 1697-9540, Nº 46, 1, 2020, pags. 159-185 |
op_relation |
https://dialnet.unirioja.es/servlet/oaiart?codigo=7702896 (Revista) ISSN 0211-6820 (Revista) ISSN 1697-9540 |
op_rights |
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_version_ |
1766165923258957824 |
spelling |
ftdialnet:oai:dialnet.unirioja.es:ART0001427621 2023-05-15T17:57:29+02:00 Recent evolution of the active layer in the Morenas Coloradas rock glacier, Central Andes, Mendoza, Argentina and its relation with kinematics Trombotto Liaudat, Darío Bottegal, E. 2020 application/pdf https://dialnet.unirioja.es/servlet/oaiart?codigo=7702896 eng eng https://dialnet.unirioja.es/servlet/oaiart?codigo=7702896 (Revista) ISSN 0211-6820 (Revista) ISSN 1697-9540 LICENCIA DE USO: Los documentos a texto completo incluidos en Dialnet son de acceso libre y propiedad de sus autores y/o editores. Por tanto, cualquier acto de reproducción, distribución, comunicación pública y/o transformación total o parcial requiere el consentimiento expreso y escrito de aquéllos. Cualquier enlace al texto completo de estos documentos deberá hacerse a través de la URL oficial de éstos en Dialnet. Más información: https://dialnet.unirioja.es/info/derechosOAI | INTELLECTUAL PROPERTY RIGHTS STATEMENT: Full text documents hosted by Dialnet are protected by copyright and/or related rights. This digital object is accessible without charge, but its use is subject to the licensing conditions set by its authors or editors. Unless expressly stated otherwise in the licensing conditions, you are free to linking, browsing, printing and making a copy for your own personal purposes. All other acts of reproduction and communication to the public are subject to the licensing conditions expressed by editors and authors and require consent from them. Any link to this document should be made using its official URL in Dialnet. More info: https://dialnet.unirioja.es/info/derechosOAI Cuadernos de investigación geográfica / Geographical Research Letters, ISSN 1697-9540, Nº 46, 1, 2020, pags. 159-185 rock glacier permafrost active layer kinematics Climatic variability glaciar rocoso glaciar de escombros capa activa cinemática variabilidad climática text (article) 2020 ftdialnet 2021-02-02T13:44:20Z Between 2008 and 2016 the Morenas Coloradas rock glacier in the Central Andes of Mendoza showed different thermal characteristics at three monitoring sites in active layers, Balcón I (3560 m a.s.l.), Balcón I Superior (3590 m a.s.l.) and Balcón II (3770 m a.s.l.). These can be explained by various factors, not only external ones related to the climatic variability and altitude, but also by thermal-hydrological factors that destabilized its internal cryogenic structure. At Balcón I, situated on a sloping terrace of the rock glacier, a transient layer even showed definitive signs of permafrost degradation in the recent years, transforming it in a thermal talik. Long-term studies of surficial boreholes showed that the 0°C isotherm is higher in altitude than the active front of the rock glacier and it has risen 40 m in altitude since the 1990s. As consequence of the thermal changes of the active layer, the rock glacier shows abrupt movements, particularly in its terminal part. Thus geodesic measurements to obtain different speeds and directions were made. At the monitoring area of Balcón I Superior, which lies on a superimposed lobe, the geodesic measurement points revealed significant kinematic activity in the period May 2015 – February 2016, when the largest displacement was approximately 2 m to the South, developing an advance of the front over Balcón I. At Balcón II however, the points moved much less, in the order of 0.30 m yr-1. The present studies suggest that the largest cryogenic sedimentary movements are superficial, that is to say, they are located in the active layer and the supra-permafrost and are due to internal movements produced by melting water coming from the top of the cryoform, and from both sides of the upper basin of the valley. En el período 2008-2016 el glaciar de escombros de Morenas Coloradas, en los Andes Centrales de Mendoza, presentó en sus sitios de monitoreo Balcón I (3560 m s.n.m.), Balcón I Superior (3590 m s.n.m.) and Balcón II (3770 m s.n.m.) situaciones térmicas de capa activa ... Article in Journal/Newspaper permafrost Talik Dialnet - Portada de revistas (Universidad de La Rioja) Argentina Talik ENVELOPE(146.601,146.601,59.667,59.667) Glaciar Rocoso ENVELOPE(-60.406,-60.406,-62.714,-62.714) Balcón ENVELOPE(-62.950,-62.950,-64.350,-64.350) |