Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina

Autores
Rahl, Jeffrey; Harbor, David; Galli, Claudia Inés; O'Sullivan, Paul
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The style, tempo, and timing of orogenic plateaus such as the Altiplano-Puna in South America are actively debated. Foreland basin strata in northwestern Argentina preserve a record of the eastward propagation, uplift, and erosion of the eastern margin of the high topography of the Puna plateau and Eastern Cordillera. Herein, we present new sedimentologic and geochronologic data from the Neogene foreland basin strata and modern fluvial sediments at 23°S to reveal the timing of growth and erosion of the modern plateau margin. Traditional sedimentologic approaches, including conglomeratic clast counts and sandstone point-counts, combined with detrital zircon U-Pb age distributions preserve robust signatures that track changes in sediment provenance over the past 12 Ma. Growth of the modern plateau edge commenced between 12 and 7 Ma and erected a topographic barrier that cut off the supply of sediment from more westerly sources. Erosion of this rising block has progressively dissected a cover of early Paleozoic sediments of the Mesón and Santa Victoria Groups, leading to deep incision into the pre-Cambrian metasediments of the Puncoviscana Formation that continues today. Detrital apatite and zircon fission track data from the both the Neogene strata and modern streams document erosion of the frontal block at a rate of about 0.6 mm/a.
Fil: Rahl, Jeffrey. Washington and Lee University; Estados Unidos
Fil: Harbor, David. Washington and Lee University; Estados Unidos
Fil: Galli, Claudia Inés. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina
Fil: O'Sullivan, Paul. GeoSep Services; Estados Unidos
Materia
DETRITAL THERMOCHRONOLOGY
EASTERN CORDILLERA
FORELAND BASIN
NEOGENE
PLATEAU MARGIN
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:11336/91041
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest ArgentinaRahl, JeffreyHarbor, DavidGalli, Claudia InésO'Sullivan, PaulDETRITAL THERMOCHRONOLOGYEASTERN CORDILLERAFORELAND BASINNEOGENEPLATEAU MARGINhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The style, tempo, and timing of orogenic plateaus such as the Altiplano-Puna in South America are actively debated. Foreland basin strata in northwestern Argentina preserve a record of the eastward propagation, uplift, and erosion of the eastern margin of the high topography of the Puna plateau and Eastern Cordillera. Herein, we present new sedimentologic and geochronologic data from the Neogene foreland basin strata and modern fluvial sediments at 23°S to reveal the timing of growth and erosion of the modern plateau margin. Traditional sedimentologic approaches, including conglomeratic clast counts and sandstone point-counts, combined with detrital zircon U-Pb age distributions preserve robust signatures that track changes in sediment provenance over the past 12 Ma. Growth of the modern plateau edge commenced between 12 and 7 Ma and erected a topographic barrier that cut off the supply of sediment from more westerly sources. Erosion of this rising block has progressively dissected a cover of early Paleozoic sediments of the Mesón and Santa Victoria Groups, leading to deep incision into the pre-Cambrian metasediments of the Puncoviscana Formation that continues today. Detrital apatite and zircon fission track data from the both the Neogene strata and modern streams document erosion of the frontal block at a rate of about 0.6 mm/a.Fil: Rahl, Jeffrey. Washington and Lee University; Estados UnidosFil: Harbor, David. Washington and Lee University; Estados UnidosFil: Galli, Claudia Inés. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; ArgentinaFil: O'Sullivan, Paul. GeoSep Services; Estados UnidosAmerican Geophysical Union2018-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/91041Rahl, Jeffrey; Harbor, David; Galli, Claudia Inés; O'Sullivan, Paul; Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina; American Geophysical Union; Tectonics; 37; 11; 11-2018; 4173-41930278-7407CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2017TC004955info:eu-repo/semantics/altIdentifier/doi/10.1029/2017TC004955info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:49:28Zoai:ri.conicet.gov.ar:11336/91041instacron: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:34982025-09-03 09:49:28.834CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
title Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
spellingShingle Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
Rahl, Jeffrey
DETRITAL THERMOCHRONOLOGY
EASTERN CORDILLERA
FORELAND BASIN
NEOGENE
PLATEAU MARGIN
title_short Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
title_full Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
title_fullStr Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
title_full_unstemmed Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
title_sort Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina
dc.creator.none.fl_str_mv Rahl, Jeffrey
Harbor, David
Galli, Claudia Inés
O'Sullivan, Paul
author Rahl, Jeffrey
author_facet Rahl, Jeffrey
Harbor, David
Galli, Claudia Inés
O'Sullivan, Paul
author_role author
author2 Harbor, David
Galli, Claudia Inés
O'Sullivan, Paul
author2_role author
author
author
dc.subject.none.fl_str_mv DETRITAL THERMOCHRONOLOGY
EASTERN CORDILLERA
FORELAND BASIN
NEOGENE
PLATEAU MARGIN
topic DETRITAL THERMOCHRONOLOGY
EASTERN CORDILLERA
FORELAND BASIN
NEOGENE
PLATEAU MARGIN
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 style, tempo, and timing of orogenic plateaus such as the Altiplano-Puna in South America are actively debated. Foreland basin strata in northwestern Argentina preserve a record of the eastward propagation, uplift, and erosion of the eastern margin of the high topography of the Puna plateau and Eastern Cordillera. Herein, we present new sedimentologic and geochronologic data from the Neogene foreland basin strata and modern fluvial sediments at 23°S to reveal the timing of growth and erosion of the modern plateau margin. Traditional sedimentologic approaches, including conglomeratic clast counts and sandstone point-counts, combined with detrital zircon U-Pb age distributions preserve robust signatures that track changes in sediment provenance over the past 12 Ma. Growth of the modern plateau edge commenced between 12 and 7 Ma and erected a topographic barrier that cut off the supply of sediment from more westerly sources. Erosion of this rising block has progressively dissected a cover of early Paleozoic sediments of the Mesón and Santa Victoria Groups, leading to deep incision into the pre-Cambrian metasediments of the Puncoviscana Formation that continues today. Detrital apatite and zircon fission track data from the both the Neogene strata and modern streams document erosion of the frontal block at a rate of about 0.6 mm/a.
Fil: Rahl, Jeffrey. Washington and Lee University; Estados Unidos
Fil: Harbor, David. Washington and Lee University; Estados Unidos
Fil: Galli, Claudia Inés. Universidad Nacional de Jujuy. Instituto de Ecorregiones Andinas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Ecorregiones Andinas; Argentina
Fil: O'Sullivan, Paul. GeoSep Services; Estados Unidos
description The style, tempo, and timing of orogenic plateaus such as the Altiplano-Puna in South America are actively debated. Foreland basin strata in northwestern Argentina preserve a record of the eastward propagation, uplift, and erosion of the eastern margin of the high topography of the Puna plateau and Eastern Cordillera. Herein, we present new sedimentologic and geochronologic data from the Neogene foreland basin strata and modern fluvial sediments at 23°S to reveal the timing of growth and erosion of the modern plateau margin. Traditional sedimentologic approaches, including conglomeratic clast counts and sandstone point-counts, combined with detrital zircon U-Pb age distributions preserve robust signatures that track changes in sediment provenance over the past 12 Ma. Growth of the modern plateau edge commenced between 12 and 7 Ma and erected a topographic barrier that cut off the supply of sediment from more westerly sources. Erosion of this rising block has progressively dissected a cover of early Paleozoic sediments of the Mesón and Santa Victoria Groups, leading to deep incision into the pre-Cambrian metasediments of the Puncoviscana Formation that continues today. Detrital apatite and zircon fission track data from the both the Neogene strata and modern streams document erosion of the frontal block at a rate of about 0.6 mm/a.
publishDate 2018
dc.date.none.fl_str_mv 2018-11
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/11336/91041
Rahl, Jeffrey; Harbor, David; Galli, Claudia Inés; O'Sullivan, Paul; Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina; American Geophysical Union; Tectonics; 37; 11; 11-2018; 4173-4193
0278-7407
CONICET Digital
CONICET
url http://hdl.handle.net/11336/91041
identifier_str_mv Rahl, Jeffrey; Harbor, David; Galli, Claudia Inés; O'Sullivan, Paul; Foreland Basin Record of Uplift and Exhumation of the Eastern Cordillera, Northwest Argentina; American Geophysical Union; Tectonics; 37; 11; 11-2018; 4173-4193
0278-7407
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://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2017TC004955
info:eu-repo/semantics/altIdentifier/doi/10.1029/2017TC004955
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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score 13.13397

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