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dc.contributor.author
Esper Angillieri, Maria Yanina
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dc.contributor.author
Perucca, Laura Patricia A.
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dc.date.available
2016-03-23T15:02:56Z
dc.date.issued
2014-12
dc.identifier.citation
Esper Angillieri, Maria Yanina; Perucca, Laura Patricia A.; A large and active debris-rockslide in the Central Andes of Argentina (30.26°S): Morphometry and triggering mechanisms; Elsevier; Quaternary International; 374; 12-2014; 182-188
dc.identifier.issn
1040-6182
dc.identifier.uri
http://hdl.handle.net/11336/4918
dc.description.abstract
A large (>0.1 km2) and complex mass movement in the Central Andes of Argentina (final portion of Cordillera de Olivares, Frontal Cordillera), was studied to identify the triggering factors and understand their relationship with geomorphic, cryogenic and climatic dynamics. This debris-rockslide is composed of clast supported blocks of Permian–Triassic volcanic breccias. In order to characterize this feature, high resolution satellite imagery interpretation was carried out, together with the study of the landslide detachment zones and landslide bodies. These debris-rockslide events could have originated as a consequence of the combination of internal slow deformation and fragmentation under periglacial conditions, followed by a sudden collapse of the rock mass. Pre- and post-slide digital elevation models (DEMs) were created from topographical data with the help of a Geographic Information System (GIS) tool. Approximately 14.89 M m3 of rock and debris travelled nearly 2 km from an elevation of 5023 m–4325 m asl. Although usually the origin of such catastrophic movements is related to seismically active areas with earthquakes whose magnitude frequently exceed Ms 6, our hypothesis is that this debris-rockslide event has a climatic origin caused by large snow accumulations during winters and subsequent fast meltdown processes during spring, which would have facilitated the sliding. The paper outlines the important role that snowmelt can play in the genesis and evolution of rock displacements and the importance of meteorological data, seismic catalogues, historical aerial photography and satellite images in geomorphological back-analysis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Debris Slide
dc.subject
Cordillera
dc.subject
Earthquake
dc.subject
Argentina
dc.subject.classification
Geología
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
A large and active debris-rockslide in the Central Andes of Argentina (30.26°S): Morphometry and triggering mechanisms
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
374
dc.journal.pagination
182-188
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Esper Angillieri, Maria Yanina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina
dc.description.fil
Fil: Perucca, Laura Patricia A.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Juan. Centro de Investigaciones de la Geosfera y Biosfera; Argentina
dc.journal.title
Quaternary International
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1040618214009707
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.quaint.2014.12.019
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2014.12.019
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