Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy

Autores
Mark, Hannah F.; Wiens, Douglas A.; Ivins, Erik R.; Richter, Andreas Jorg; Ben Mansour, Walid; Magnani, M. Beatrice; Marderwald, Eric Rodolfo; Adaros, Rodrigo; Barrientos, Sergio
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Patagonian slab window has been proposed to enhance the solid Earth response to ice mass load changes in the overlying Northern and Southern Patagonian Icefields (NPI and SPI, respectively). Here, we present the first regional seismic velocity model covering the entire north-south extent of the slab window. A slow velocity anomaly in the uppermost mantle indicates warm mantle temperature, low viscosity, and possibly partial melt. Low velocities just below the Moho suggest that the lithospheric mantle has been thermally eroded over the youngest part of the slab window. The slowest part of the anomaly is north of 49°S, implying that the NPI and the northern SPI overlie lower viscosity mantle than the southern SPI. This comprehensive seismic mapping of the slab window provides key evidence supporting the previously hypothesized connection between post-Little Ice Age anthropogenic ice mass loss and rapid geodetically observed glacial isostatic uplift (≥4 cm/yr).
Fil: Mark, Hannah F.. Washington University in St. Louis; Estados Unidos
Fil: Wiens, Douglas A.. Washington University in St. Louis; Estados Unidos
Fil: Ivins, Erik R.. California Institute of Technology; Estados Unidos
Fil: Richter, Andreas Jorg. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Ben Mansour, Walid. Washington University in St. Louis; Estados Unidos
Fil: Magnani, M. Beatrice. Southern Methodist University; Estados Unidos
Fil: Marderwald, Eric Rodolfo. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Adaros, Rodrigo. No especifíca;
Fil: Barrientos, Sergio. Universidad de Chile; Chile
Materia
SEISMOLOGY
VELOCITY STRUCTURE
PATAGONIA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/188152

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spelling Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial IsostasyMark, Hannah F.Wiens, Douglas A.Ivins, Erik R.Richter, Andreas JorgBen Mansour, WalidMagnani, M. BeatriceMarderwald, Eric RodolfoAdaros, RodrigoBarrientos, SergioSEISMOLOGYVELOCITY STRUCTUREPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Patagonian slab window has been proposed to enhance the solid Earth response to ice mass load changes in the overlying Northern and Southern Patagonian Icefields (NPI and SPI, respectively). Here, we present the first regional seismic velocity model covering the entire north-south extent of the slab window. A slow velocity anomaly in the uppermost mantle indicates warm mantle temperature, low viscosity, and possibly partial melt. Low velocities just below the Moho suggest that the lithospheric mantle has been thermally eroded over the youngest part of the slab window. The slowest part of the anomaly is north of 49°S, implying that the NPI and the northern SPI overlie lower viscosity mantle than the southern SPI. This comprehensive seismic mapping of the slab window provides key evidence supporting the previously hypothesized connection between post-Little Ice Age anthropogenic ice mass loss and rapid geodetically observed glacial isostatic uplift (≥4 cm/yr).Fil: Mark, Hannah F.. Washington University in St. Louis; Estados UnidosFil: Wiens, Douglas A.. Washington University in St. Louis; Estados UnidosFil: Ivins, Erik R.. California Institute of Technology; Estados UnidosFil: Richter, Andreas Jorg. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Ben Mansour, Walid. Washington University in St. Louis; Estados UnidosFil: Magnani, M. Beatrice. Southern Methodist University; Estados UnidosFil: Marderwald, Eric Rodolfo. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Adaros, Rodrigo. No especifíca;Fil: Barrientos, Sergio. Universidad de Chile; ChileAmerican Geophysical Union2022-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/188152Mark, Hannah F.; Wiens, Douglas A.; Ivins, Erik R.; Richter, Andreas Jorg; Ben Mansour, Walid; et al.; Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy; American Geophysical Union; Geophysical Research Letters; 49; 2; 1-2022; 1-100094-8276CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1029/2021GL096863info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GL096863info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:57:14Zoai:ri.conicet.gov.ar:11336/188152instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:57:15.004CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
title Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
spellingShingle Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
Mark, Hannah F.
SEISMOLOGY
VELOCITY STRUCTURE
PATAGONIA
title_short Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
title_full Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
title_fullStr Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
title_full_unstemmed Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
title_sort Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy
dc.creator.none.fl_str_mv Mark, Hannah F.
Wiens, Douglas A.
Ivins, Erik R.
Richter, Andreas Jorg
Ben Mansour, Walid
Magnani, M. Beatrice
Marderwald, Eric Rodolfo
Adaros, Rodrigo
Barrientos, Sergio
author Mark, Hannah F.
author_facet Mark, Hannah F.
Wiens, Douglas A.
Ivins, Erik R.
Richter, Andreas Jorg
Ben Mansour, Walid
Magnani, M. Beatrice
Marderwald, Eric Rodolfo
Adaros, Rodrigo
Barrientos, Sergio
author_role author
author2 Wiens, Douglas A.
Ivins, Erik R.
Richter, Andreas Jorg
Ben Mansour, Walid
Magnani, M. Beatrice
Marderwald, Eric Rodolfo
Adaros, Rodrigo
Barrientos, Sergio
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv SEISMOLOGY
VELOCITY STRUCTURE
PATAGONIA
topic SEISMOLOGY
VELOCITY STRUCTURE
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Patagonian slab window has been proposed to enhance the solid Earth response to ice mass load changes in the overlying Northern and Southern Patagonian Icefields (NPI and SPI, respectively). Here, we present the first regional seismic velocity model covering the entire north-south extent of the slab window. A slow velocity anomaly in the uppermost mantle indicates warm mantle temperature, low viscosity, and possibly partial melt. Low velocities just below the Moho suggest that the lithospheric mantle has been thermally eroded over the youngest part of the slab window. The slowest part of the anomaly is north of 49°S, implying that the NPI and the northern SPI overlie lower viscosity mantle than the southern SPI. This comprehensive seismic mapping of the slab window provides key evidence supporting the previously hypothesized connection between post-Little Ice Age anthropogenic ice mass loss and rapid geodetically observed glacial isostatic uplift (≥4 cm/yr).
Fil: Mark, Hannah F.. Washington University in St. Louis; Estados Unidos
Fil: Wiens, Douglas A.. Washington University in St. Louis; Estados Unidos
Fil: Ivins, Erik R.. California Institute of Technology; Estados Unidos
Fil: Richter, Andreas Jorg. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Ben Mansour, Walid. Washington University in St. Louis; Estados Unidos
Fil: Magnani, M. Beatrice. Southern Methodist University; Estados Unidos
Fil: Marderwald, Eric Rodolfo. Universidad Nacional de la Plata. Facultad de Cs.astronomicas y Geofisicas. Laboratorio Maggia.; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Adaros, Rodrigo. No especifíca;
Fil: Barrientos, Sergio. Universidad de Chile; Chile
description The Patagonian slab window has been proposed to enhance the solid Earth response to ice mass load changes in the overlying Northern and Southern Patagonian Icefields (NPI and SPI, respectively). Here, we present the first regional seismic velocity model covering the entire north-south extent of the slab window. A slow velocity anomaly in the uppermost mantle indicates warm mantle temperature, low viscosity, and possibly partial melt. Low velocities just below the Moho suggest that the lithospheric mantle has been thermally eroded over the youngest part of the slab window. The slowest part of the anomaly is north of 49°S, implying that the NPI and the northern SPI overlie lower viscosity mantle than the southern SPI. This comprehensive seismic mapping of the slab window provides key evidence supporting the previously hypothesized connection between post-Little Ice Age anthropogenic ice mass loss and rapid geodetically observed glacial isostatic uplift (≥4 cm/yr).
publishDate 2022
dc.date.none.fl_str_mv 2022-01
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/11336/188152
Mark, Hannah F.; Wiens, Douglas A.; Ivins, Erik R.; Richter, Andreas Jorg; Ben Mansour, Walid; et al.; Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy; American Geophysical Union; Geophysical Research Letters; 49; 2; 1-2022; 1-10
0094-8276
CONICET Digital
CONICET
url http://hdl.handle.net/11336/188152
identifier_str_mv Mark, Hannah F.; Wiens, Douglas A.; Ivins, Erik R.; Richter, Andreas Jorg; Ben Mansour, Walid; et al.; Lithospheric Erosion in the Patagonian Slab Window, and Implications for Glacial Isostasy; American Geophysical Union; Geophysical Research Letters; 49; 2; 1-2022; 1-10
0094-8276
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1029/2021GL096863
info:eu-repo/semantics/altIdentifier/doi/10.1029/2021GL096863
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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