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dc.contributor.author
Lodolo, Emanuele
dc.contributor.author
Lozano, Jorge Gabriel
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Donda, Federica
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Bran, Donaldo Mauricio
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Baradello, Luca
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Tassone, Alejandro Alberto
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Romeo, Roberto
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Paterlini, Marcelo
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Grossi, Maurizio
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Caffau, Mauro
dc.contributor.author
Vilas, Juan Francisco A.
dc.date.available
2021-10-06T16:19:57Z
dc.date.issued
2020-09
dc.identifier.citation
Lodolo, Emanuele; Lozano, Jorge Gabriel; Donda, Federica; Bran, Donaldo Mauricio; Baradello, Luca; et al.; Late-glacial fluctuations of two southern Patagonia outlet glaciers revealed by high-resolution seismic surveys; Academic Press Inc Elsevier Science; Quaternary Research; 97; 9-2020; 111-124
dc.identifier.issn
0033-5894
dc.identifier.uri
http://hdl.handle.net/11336/142892
dc.description.abstract
Lago Argentino hosts various calving glaciers, among them the famous Perito Moreno. Whereas the onland late Pleistocene– Holocene glacial history is rather well constrained, the submerged glacier-related features were until now undisclosed. Here we present a series of high-resolution seismic profiles revealing moraine bodies associated with the late-glacial glacier dynamics and the first bathymetric map of the Brazo Rico and Brazo Sur, the two southern arms of Lago Argentino. At the eastern termination of Brazo Rico, we identified at the lake floor the submerged expression of the Puerto Bandera 3 moraine mapped onshore, which represents the oldest event (12,660 ± 70 cal yr BP oldest minimum age) recognized in this lake arm, and seven other younger events expressed by a series of terminal and recessional moraines. Along the Brazo Sur, few moraine bodies have been imaged by seismic data. Here, the youngest temporal constraint comes from the Frías moraine (ca. 6000 cal yr BP), which closes off the southern end of the Brazo Sur. At the confluence of the two arms, the Perito Moreno and the former Frías glacier merged and flowed toward east during their late-glacial maximum advance (i.e., Puerto Bandera 1 moraine). The subaqueous evidence of moraine bodies testifies to the occurrence of previously undocumented pulses of the Perito Moreno and former Frías glaciers within the general phase of late Pleistocene–Holocene regression.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Academic Press Inc Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BATHYMETRIC MAP
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BRAZO RICO
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BRAZO SUR
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FORMER FRÍAS GLACIER
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H-R SEISMIC PROFILES
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LAGO ARGENTINO
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LATE-GLACIAL GLACIER FLUCTUATIONS
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PERITO MORENO GLACIER
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SOUTH PATAGONIA
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TERMINAL AND RECESSIONAL MORAINES
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Geoquímica y Geofísica
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Late-glacial fluctuations of two southern Patagonia outlet glaciers revealed by high-resolution seismic surveys
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-09-07T18:34:01Z
dc.journal.volume
97
dc.journal.pagination
111-124
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Lodolo, Emanuele. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Lozano, Jorge Gabriel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Donda, Federica. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Bran, Donaldo Mauricio. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Baradello, Luca. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Tassone, Alejandro Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina
dc.description.fil
Fil: Romeo, Roberto. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Paterlini, Marcelo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
dc.description.fil
Fil: Grossi, Maurizio. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Caffau, Mauro. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.description.fil
Fil: Vilas, Juan Francisco A.. Istituto Nazionale di Oceanografia e di Geofisica Sperimentale; Italia
dc.journal.title
Quaternary Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/quaternary-research/article/abs/lateglacial-fluctuations-of-two-southern-patagonia-outlet-glaciers-revealed-by-highresolution-seismic-surveys/AA21115E2FB4B42F9BB183E2F5869775
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1017/qua.2020.20
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