The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin

Autores
Davila, Federico Miguel; Gimenez, Mario Ernesto; Nobile, Julieta; Martínez, Myriam Patricia
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
At the southern margin of the Andean Puna plateau and within the northernmost Argentine broken foreland, at 28° SL, one of the largest and a highest intermontane basin of the Sierras Pampeanas develop: the Pipanaco Basin. With a surface topography >1000 m on sea level, this basin represents a strategic spot to understand the subsidence and subsequent uplifting history of high‐elevated depositional surfaces within the distal Andean foreland. But the Pipanaco Basin stratigraphic record is almost entirely in subsurface and no geophysical tests are known in the region. We achieved the first high‐resolution gravity approach orientated to understand the subsurface basin geometry. This study, together with stratigraphic correlations and flexural and backstripping analysis, suggests the region was dominated by a regional subsidence episode of 2km occurred between the Miocene‐Pliocene, followed by basement thrusting and 1‐1.5 km of sediment filling within restricted intermontane scenarios between the Pliocene‐Pleistocene. Based on the present‐day position of the basement top and the Neogene‐Present thickness records along the Sierras Pampeanas that show slightly variations along strike, we argue with the proposals that the basin level of the high‐elevated, closedrainage depocenters of Argentina were controlled by sediment aggradation. The close correlation between the basement top position and the mean surface topographies recorded in different swaths indicates deep‐seated geodynamic process affected the northern Sierras Pampeanas. Seismic tomography as well as a preliminary comparison between the hydrostatic and seismic Moho suggest thin lithosphere, overlapped by an uncompensated crust beneath the Pipanaco Basin. This is consistent with a lighter and more buoyant lithosphere along the northern Sierras Pampeanas, which drove the long‐wavelength rise of this part of the broken foreland after the major event of Andean filling.
Fil: Davila, Federico Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Nobile, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Materia
Sierras Pampeanas
Southern Andean
Broken foreland
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acceso abierto
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CONICET Digital (CONICET)
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Consejo Nacional de Investigaciones Científicas y Técnicas
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Acceder
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network_name_str CONICET Digital (CONICET)
spelling The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco BasinDavila, Federico MiguelGimenez, Mario ErnestoNobile, JulietaMartínez, Myriam PatriciaSierras PampeanasSouthern AndeanBroken forelandhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1At the southern margin of the Andean Puna plateau and within the northernmost Argentine broken foreland, at 28° SL, one of the largest and a highest intermontane basin of the Sierras Pampeanas develop: the Pipanaco Basin. With a surface topography >1000 m on sea level, this basin represents a strategic spot to understand the subsidence and subsequent uplifting history of high‐elevated depositional surfaces within the distal Andean foreland. But the Pipanaco Basin stratigraphic record is almost entirely in subsurface and no geophysical tests are known in the region. We achieved the first high‐resolution gravity approach orientated to understand the subsurface basin geometry. This study, together with stratigraphic correlations and flexural and backstripping analysis, suggests the region was dominated by a regional subsidence episode of 2km occurred between the Miocene‐Pliocene, followed by basement thrusting and 1‐1.5 km of sediment filling within restricted intermontane scenarios between the Pliocene‐Pleistocene. Based on the present‐day position of the basement top and the Neogene‐Present thickness records along the Sierras Pampeanas that show slightly variations along strike, we argue with the proposals that the basin level of the high‐elevated, closedrainage depocenters of Argentina were controlled by sediment aggradation. The close correlation between the basement top position and the mean surface topographies recorded in different swaths indicates deep‐seated geodynamic process affected the northern Sierras Pampeanas. Seismic tomography as well as a preliminary comparison between the hydrostatic and seismic Moho suggest thin lithosphere, overlapped by an uncompensated crust beneath the Pipanaco Basin. This is consistent with a lighter and more buoyant lithosphere along the northern Sierras Pampeanas, which drove the long‐wavelength rise of this part of the broken foreland after the major event of Andean filling.Fil: Davila, Federico Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; ArgentinaFil: Nobile, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; ArgentinaWiley Blackwell Publishing, Inc2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/252356Davila, Federico Miguel; Gimenez, Mario Ernesto; Nobile, Julieta; Martínez, Myriam Patricia; The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin; Wiley Blackwell Publishing, Inc; Basin Research; 24; 6; 1-2012; 615-6360950-091XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/10.1111/j.1365-2117.2011.00539.xinfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2117.2011.00539.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:32:56Zoai:ri.conicet.gov.ar:11336/252356instacron: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:34982025-09-29 09:32:57.121CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
title The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
spellingShingle The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
Davila, Federico Miguel
Sierras Pampeanas
Southern Andean
Broken foreland
title_short The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
title_full The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
title_fullStr The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
title_full_unstemmed The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
title_sort The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin
dc.creator.none.fl_str_mv Davila, Federico Miguel
Gimenez, Mario Ernesto
Nobile, Julieta
Martínez, Myriam Patricia
author Davila, Federico Miguel
author_facet Davila, Federico Miguel
Gimenez, Mario Ernesto
Nobile, Julieta
Martínez, Myriam Patricia
author_role author
author2 Gimenez, Mario Ernesto
Nobile, Julieta
Martínez, Myriam Patricia
author2_role author
author
author
dc.subject.none.fl_str_mv Sierras Pampeanas
Southern Andean
Broken foreland
topic Sierras Pampeanas
Southern Andean
Broken foreland
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv At the southern margin of the Andean Puna plateau and within the northernmost Argentine broken foreland, at 28° SL, one of the largest and a highest intermontane basin of the Sierras Pampeanas develop: the Pipanaco Basin. With a surface topography >1000 m on sea level, this basin represents a strategic spot to understand the subsidence and subsequent uplifting history of high‐elevated depositional surfaces within the distal Andean foreland. But the Pipanaco Basin stratigraphic record is almost entirely in subsurface and no geophysical tests are known in the region. We achieved the first high‐resolution gravity approach orientated to understand the subsurface basin geometry. This study, together with stratigraphic correlations and flexural and backstripping analysis, suggests the region was dominated by a regional subsidence episode of 2km occurred between the Miocene‐Pliocene, followed by basement thrusting and 1‐1.5 km of sediment filling within restricted intermontane scenarios between the Pliocene‐Pleistocene. Based on the present‐day position of the basement top and the Neogene‐Present thickness records along the Sierras Pampeanas that show slightly variations along strike, we argue with the proposals that the basin level of the high‐elevated, closedrainage depocenters of Argentina were controlled by sediment aggradation. The close correlation between the basement top position and the mean surface topographies recorded in different swaths indicates deep‐seated geodynamic process affected the northern Sierras Pampeanas. Seismic tomography as well as a preliminary comparison between the hydrostatic and seismic Moho suggest thin lithosphere, overlapped by an uncompensated crust beneath the Pipanaco Basin. This is consistent with a lighter and more buoyant lithosphere along the northern Sierras Pampeanas, which drove the long‐wavelength rise of this part of the broken foreland after the major event of Andean filling.
Fil: Davila, Federico Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Gimenez, Mario Ernesto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
Fil: Nobile, Julieta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Martínez, Myriam Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Juan; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto Geofísico Sismológico Volponi; Argentina
description At the southern margin of the Andean Puna plateau and within the northernmost Argentine broken foreland, at 28° SL, one of the largest and a highest intermontane basin of the Sierras Pampeanas develop: the Pipanaco Basin. With a surface topography >1000 m on sea level, this basin represents a strategic spot to understand the subsidence and subsequent uplifting history of high‐elevated depositional surfaces within the distal Andean foreland. But the Pipanaco Basin stratigraphic record is almost entirely in subsurface and no geophysical tests are known in the region. We achieved the first high‐resolution gravity approach orientated to understand the subsurface basin geometry. This study, together with stratigraphic correlations and flexural and backstripping analysis, suggests the region was dominated by a regional subsidence episode of 2km occurred between the Miocene‐Pliocene, followed by basement thrusting and 1‐1.5 km of sediment filling within restricted intermontane scenarios between the Pliocene‐Pleistocene. Based on the present‐day position of the basement top and the Neogene‐Present thickness records along the Sierras Pampeanas that show slightly variations along strike, we argue with the proposals that the basin level of the high‐elevated, closedrainage depocenters of Argentina were controlled by sediment aggradation. The close correlation between the basement top position and the mean surface topographies recorded in different swaths indicates deep‐seated geodynamic process affected the northern Sierras Pampeanas. Seismic tomography as well as a preliminary comparison between the hydrostatic and seismic Moho suggest thin lithosphere, overlapped by an uncompensated crust beneath the Pipanaco Basin. This is consistent with a lighter and more buoyant lithosphere along the northern Sierras Pampeanas, which drove the long‐wavelength rise of this part of the broken foreland after the major event of Andean filling.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/252356
Davila, Federico Miguel; Gimenez, Mario Ernesto; Nobile, Julieta; Martínez, Myriam Patricia; The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin; Wiley Blackwell Publishing, Inc; Basin Research; 24; 6; 1-2012; 615-636
0950-091X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/252356
identifier_str_mv Davila, Federico Miguel; Gimenez, Mario Ernesto; Nobile, Julieta; Martínez, Myriam Patricia; The evolution of the high‐elevated depocenters of the northern Sierras Pampeanas ( ca . 28˚ SL), Argentine broken foreland, South‐Central Andes: the Pipanaco Basin; Wiley Blackwell Publishing, Inc; Basin Research; 24; 6; 1-2012; 615-636
0950-091X
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/10.1111/j.1365-2117.2011.00539.x
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2117.2011.00539.x
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
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
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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score 13.070432

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