Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley

Autores
Strelin, J.; Malagnino, E.
Año de publicación
2009
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Although the depositational environment assigned by Darwin to the large erratic blocks and gravels in the Río Santa Cruz valley has been reinterpreted, his geomorphological and stratigraphic observations are still in force. The large erratic blocks he described as crowning the Condor Cliff terrace and spread at the bottom of the valley just east of this locality (Sites 2 and 3), are now interpreted as indicators of the maximum glacial expansion in Patagonia. Similar blocks, though of a different lithology, accumulated over a lower terrace located up-valley (Site 4), are now linked to moraines and glacifluvial terraces of the Penultimate Glaciation. Finally, in addition to the erratic block discovered by Darwin in the lower Río Santa Cruz valley (Site 1), there are others - recently discovered - which probably account for a catastrophic event ascribed to a big glacier-lake outburst during the last interglacial.
Fil:Strelin, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Malagnino, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fuente
Rev. Asoc. Geol. Argent. 2009;64(1):101-108
Materia
Darwin
Erratic blocks
Glaciations
Moraines
Patagonia
depositional environment
geomorphology
glaciation
glaciofluvial deposit
Last Interglacial
moraine
outburst
stratigraphy
Patagonia
South America
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/2.5/ar
Repositorio
Biblioteca Digital (UBA-FCEN)
Institución
Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
OAI Identificador
paperaa:paper_00044822_v64_n1_p101_Strelin
Acceder
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oai_identifier_str paperaa:paper_00044822_v64_n1_p101_Strelin
network_acronym_str BDUBAFCEN
repository_id_str 1896
network_name_str Biblioteca Digital (UBA-FCEN)
spelling Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley Strelin, J.Malagnino, E.DarwinErratic blocksGlaciationsMorainesPatagoniadepositional environmentgeomorphologyglaciationglaciofluvial depositLast InterglacialmoraineoutburststratigraphyPatagoniaSouth AmericaAlthough the depositational environment assigned by Darwin to the large erratic blocks and gravels in the Río Santa Cruz valley has been reinterpreted, his geomorphological and stratigraphic observations are still in force. The large erratic blocks he described as crowning the Condor Cliff terrace and spread at the bottom of the valley just east of this locality (Sites 2 and 3), are now interpreted as indicators of the maximum glacial expansion in Patagonia. Similar blocks, though of a different lithology, accumulated over a lower terrace located up-valley (Site 4), are now linked to moraines and glacifluvial terraces of the Penultimate Glaciation. Finally, in addition to the erratic block discovered by Darwin in the lower Río Santa Cruz valley (Site 1), there are others - recently discovered - which probably account for a catastrophic event ascribed to a big glacier-lake outburst during the last interglacial.Fil:Strelin, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.Fil:Malagnino, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12110/paper_00044822_v64_n1_p101_StrelinRev. Asoc. Geol. Argent. 2009;64(1):101-108reponame:Biblioteca Digital (UBA-FCEN)instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesinstacron:UBA-FCENenginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/2.5/ar2025-10-16T09:30:07Zpaperaa:paper_00044822_v64_n1_p101_StrelinInstitucionalhttps://digital.bl.fcen.uba.ar/Universidad públicaNo correspondehttps://digital.bl.fcen.uba.ar/cgi-bin/oaiserver.cgiana@bl.fcen.uba.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:18962025-10-16 09:30:08.43Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturalesfalse
dc.title.none.fl_str_mv Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
title Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
spellingShingle Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
Strelin, J.
Darwin
Erratic blocks
Glaciations
Moraines
Patagonia
depositional environment
geomorphology
glaciation
glaciofluvial deposit
Last Interglacial
moraine
outburst
stratigraphy
Patagonia
South America
title_short Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
title_full Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
title_fullStr Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
title_full_unstemmed Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
title_sort Charles Darwin and the oLdest Glacial events in Patagonia: The Erratic blocks of the río santa Cruz valley
dc.creator.none.fl_str_mv Strelin, J.
Malagnino, E.
author Strelin, J.
author_facet Strelin, J.
Malagnino, E.
author_role author
author2 Malagnino, E.
author2_role author
dc.subject.none.fl_str_mv Darwin
Erratic blocks
Glaciations
Moraines
Patagonia
depositional environment
geomorphology
glaciation
glaciofluvial deposit
Last Interglacial
moraine
outburst
stratigraphy
Patagonia
South America
topic Darwin
Erratic blocks
Glaciations
Moraines
Patagonia
depositional environment
geomorphology
glaciation
glaciofluvial deposit
Last Interglacial
moraine
outburst
stratigraphy
Patagonia
South America
dc.description.none.fl_txt_mv Although the depositational environment assigned by Darwin to the large erratic blocks and gravels in the Río Santa Cruz valley has been reinterpreted, his geomorphological and stratigraphic observations are still in force. The large erratic blocks he described as crowning the Condor Cliff terrace and spread at the bottom of the valley just east of this locality (Sites 2 and 3), are now interpreted as indicators of the maximum glacial expansion in Patagonia. Similar blocks, though of a different lithology, accumulated over a lower terrace located up-valley (Site 4), are now linked to moraines and glacifluvial terraces of the Penultimate Glaciation. Finally, in addition to the erratic block discovered by Darwin in the lower Río Santa Cruz valley (Site 1), there are others - recently discovered - which probably account for a catastrophic event ascribed to a big glacier-lake outburst during the last interglacial.
Fil:Strelin, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Malagnino, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
description Although the depositational environment assigned by Darwin to the large erratic blocks and gravels in the Río Santa Cruz valley has been reinterpreted, his geomorphological and stratigraphic observations are still in force. The large erratic blocks he described as crowning the Condor Cliff terrace and spread at the bottom of the valley just east of this locality (Sites 2 and 3), are now interpreted as indicators of the maximum glacial expansion in Patagonia. Similar blocks, though of a different lithology, accumulated over a lower terrace located up-valley (Site 4), are now linked to moraines and glacifluvial terraces of the Penultimate Glaciation. Finally, in addition to the erratic block discovered by Darwin in the lower Río Santa Cruz valley (Site 1), there are others - recently discovered - which probably account for a catastrophic event ascribed to a big glacier-lake outburst during the last interglacial.
publishDate 2009
dc.date.none.fl_str_mv 2009
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12110/paper_00044822_v64_n1_p101_Strelin
url http://hdl.handle.net/20.500.12110/paper_00044822_v64_n1_p101_Strelin
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/2.5/ar
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Rev. Asoc. Geol. Argent. 2009;64(1):101-108
reponame:Biblioteca Digital (UBA-FCEN)
instname:Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron:UBA-FCEN
reponame_str Biblioteca Digital (UBA-FCEN)
collection Biblioteca Digital (UBA-FCEN)
instname_str Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
instacron_str UBA-FCEN
institution UBA-FCEN
repository.name.fl_str_mv Biblioteca Digital (UBA-FCEN) - Universidad Nacional de Buenos Aires. Facultad de Ciencias Exactas y Naturales
repository.mail.fl_str_mv ana@bl.fcen.uba.ar
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score 12.712165

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