The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera

The Laguna Derrumbe is a body of water located in the North Patagonian Andes, in Chubut province, Argentina. This lake is contained in a glacial cirque and dammed by the terminal moraine of the namesake glacier. Through field survey it was possible to describe this lake and an important rocky deposi...

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Autores principales: Colavitto, B., Orts, D.L., Folguera, A.
Formato: JOUR
Materias:
Climate change
Earthquake
Mass wasting
Patagonian Andes
climate change
dam failure
flood
glacier retreat
moraine
outburst
Andes
Argentina
Chubut
Patagonia
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v69_n3_p457_Colavitto
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00044822_v69_n3_p457_Colavitto
record_format dspace
spelling todo:paper_00044822_v69_n3_p457_Colavitto2023-10-03T13:58:58Z The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera Colavitto, B. Orts, D.L. Folguera, A. Climate change Earthquake Mass wasting Patagonian Andes climate change dam failure flood glacier retreat moraine outburst Andes Argentina Chubut Patagonia The Laguna Derrumbe is a body of water located in the North Patagonian Andes, in Chubut province, Argentina. This lake is contained in a glacial cirque and dammed by the terminal moraine of the namesake glacier. Through field survey it was possible to describe this lake and an important rocky deposit downstream of it, which is interpreted as an outburst flood deposit. These deposits are generated by high-energy processes related to the failure of a natural dam, in this case a moraine dam. The study made allowed to conclude that the frontal moraine of the Derrumbe glacier suffered a partial rupture in historic times, unleashing a flash flood downstream to the lake, through the Tigre river valley in the town of Cholila. In this work the possible causes that led to the failure are discussed, concluding that the main cause was probably the fast retreat that the glacier experimented in the 50's and early 60's, similarly to the general glacier retreat observed in the Patagonian Andes during the last century. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v69_n3_p457_Colavitto
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Climate change
Earthquake
Mass wasting
Patagonian Andes
climate change
dam failure
flood
glacier retreat
moraine
outburst
Andes
Argentina
Chubut
Patagonia
spellingShingle Climate change
Earthquake
Mass wasting
Patagonian Andes
climate change
dam failure
flood
glacier retreat
moraine
outburst
Andes
Argentina
Chubut
Patagonia
Colavitto, B.
Orts, D.L.
Folguera, A.
The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
topic_facet Climate change
Earthquake
Mass wasting
Patagonian Andes
climate change
dam failure
flood
glacier retreat
moraine
outburst
Andes
Argentina
Chubut
Patagonia
description The Laguna Derrumbe is a body of water located in the North Patagonian Andes, in Chubut province, Argentina. This lake is contained in a glacial cirque and dammed by the terminal moraine of the namesake glacier. Through field survey it was possible to describe this lake and an important rocky deposit downstream of it, which is interpreted as an outburst flood deposit. These deposits are generated by high-energy processes related to the failure of a natural dam, in this case a moraine dam. The study made allowed to conclude that the frontal moraine of the Derrumbe glacier suffered a partial rupture in historic times, unleashing a flash flood downstream to the lake, through the Tigre river valley in the town of Cholila. In this work the possible causes that led to the failure are discussed, concluding that the main cause was probably the fast retreat that the glacier experimented in the 50's and early 60's, similarly to the general glacier retreat observed in the Patagonian Andes during the last century.
format JOUR
author Colavitto, B.
Orts, D.L.
Folguera, A.
author_facet Colavitto, B.
Orts, D.L.
Folguera, A.
author_sort Colavitto, B.
title The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
title_short The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
title_full The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
title_fullStr The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
title_full_unstemmed The historic outburst flood of the laguna Derrumbe, Cholila, Chubut. Fast glacier retreat and moraine dam failure in North Patagonian Cordillera
title_sort historic outburst flood of the laguna derrumbe, cholila, chubut. fast glacier retreat and moraine dam failure in north patagonian cordillera
url http://hdl.handle.net/20.500.12110/paper_00044822_v69_n3_p457_Colavitto
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