Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)

Considering the high concentration of rock avalanches in the northern part of the Neuquén province of Argentina (36°-38°S and 70°-71°W) and their association with lacustrine basins forming natural dams, their catastrophic collapse seems not to be such a common process as could be expected for these...

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Detalles Bibliográficos
Autores principales: Penna, Ivanna Marina, Folguera, Andrés
Publicado: 2007
Materias:
Neuquén
Outburst flood
Rock avalanches
Sedimentary analysis
alluvial deposit
collapse structure
flooding
fluvial geomorphology
outburst
Postglacial
river terrace
rock avalanche
sedimentology
Argentina
Neuquen
South America
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v62_n3_p460_Penna
http://hdl.handle.net/20.500.12110/paper_00044822_v62_n3_p460_Penna
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00044822_v62_n3_p460_Penna
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spelling paper:paper_00044822_v62_n3_p460_Penna2023-06-08T14:26:04Z Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W) Penna, Ivanna Marina Folguera, Andrés Neuquén Outburst flood Rock avalanches Sedimentary analysis alluvial deposit collapse structure flooding fluvial geomorphology outburst Postglacial river terrace rock avalanche sedimentology Argentina Neuquen South America Considering the high concentration of rock avalanches in the northern part of the Neuquén province of Argentina (36°-38°S and 70°-71°W) and their association with lacustrine basins forming natural dams, their catastrophic collapse seems not to be such a common process as could be expected for these cases. The present work depicts the area immediately affected by the outburst flood corresponding to the Navarrete dam catastrophic collapse (175 × 106 m3), through a sedimentological analysis, generated since the arroyo Colorado was blocked due to a rock avalanche deposit during not well constrained postglacial times. The outburst flood dispersion is initially inferred based on morphological criteria and then determined from a sedimentological analysis of its matrix. Furthermore, the matrix is compared to that of the fluvial terraces, which have been sampled along the arroyo Colorado. This comparison shows that even though differences among them are not so significant through most of the study area, matrix frequency starts to be distinctive from the most distant point of sampling. Fil:Penna, I.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Folguera, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v62_n3_p460_Penna http://hdl.handle.net/20.500.12110/paper_00044822_v62_n3_p460_Penna
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Neuquén
Outburst flood
Rock avalanches
Sedimentary analysis
alluvial deposit
collapse structure
flooding
fluvial geomorphology
outburst
Postglacial
river terrace
rock avalanche
sedimentology
Argentina
Neuquen
South America
spellingShingle Neuquén
Outburst flood
Rock avalanches
Sedimentary analysis
alluvial deposit
collapse structure
flooding
fluvial geomorphology
outburst
Postglacial
river terrace
rock avalanche
sedimentology
Argentina
Neuquen
South America
Penna, Ivanna Marina
Folguera, Andrés
Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
topic_facet Neuquén
Outburst flood
Rock avalanches
Sedimentary analysis
alluvial deposit
collapse structure
flooding
fluvial geomorphology
outburst
Postglacial
river terrace
rock avalanche
sedimentology
Argentina
Neuquen
South America
description Considering the high concentration of rock avalanches in the northern part of the Neuquén province of Argentina (36°-38°S and 70°-71°W) and their association with lacustrine basins forming natural dams, their catastrophic collapse seems not to be such a common process as could be expected for these cases. The present work depicts the area immediately affected by the outburst flood corresponding to the Navarrete dam catastrophic collapse (175 × 106 m3), through a sedimentological analysis, generated since the arroyo Colorado was blocked due to a rock avalanche deposit during not well constrained postglacial times. The outburst flood dispersion is initially inferred based on morphological criteria and then determined from a sedimentological analysis of its matrix. Furthermore, the matrix is compared to that of the fluvial terraces, which have been sampled along the arroyo Colorado. This comparison shows that even though differences among them are not so significant through most of the study area, matrix frequency starts to be distinctive from the most distant point of sampling.
author Penna, Ivanna Marina
Folguera, Andrés
author_facet Penna, Ivanna Marina
Folguera, Andrés
author_sort Penna, Ivanna Marina
title Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
title_short Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
title_full Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
title_fullStr Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
title_full_unstemmed Identification of the area immediately affected by outburst flood of the Laguna Navarrete, Province of Neuquén (36°30′S-71°W)
title_sort identification of the area immediately affected by outburst flood of the laguna navarrete, province of neuquén (36°30′s-71°w)
publishDate 2007
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v62_n3_p460_Penna
http://hdl.handle.net/20.500.12110/paper_00044822_v62_n3_p460_Penna
work_keys_str_mv AT pennaivannamarina identificationoftheareaimmediatelyaffectedbyoutburstfloodofthelagunanavarreteprovinceofneuquen3630s71w
AT folgueraandres identificationoftheareaimmediatelyaffectedbyoutburstfloodofthelagunanavarreteprovinceofneuquen3630s71w
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