Pliocene Orographic Barrier Uplift in the Southern Central Andes

Autores
Pingel, Heiko; Alonso, Ricardo Narciso; Mulch, Andreas; Rohrmann, Alexander; Sudo, Masafumi; Strecker, R.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sedimentary basin fills along the windward flanks of orogenic plateaus are valuable archives of paleoenvironmental change with the potential to resolve the history of surface uplift and orographic barrier formation. The intermontane basins of the southern Central Andes contain thick successions of sedimentary material that are commonly interbedded with datable volcanic ashes. We relate variations in the hydrogen isotopic composition of hydrated volcanic glass (δDg) of Neogene to Quaternary fills in the semiarid intermontane Humahuaca Basin (Eastern Cordillera, northwest Argentina) to spatiotemporal changes in topography and associated orographic effects. δD values from volcanic glass in the basin strata (–117‰ to –98‰) show two main trends that accompany observed tectonosedimentary events in the study area. Between 6.0 and 3.5 Ma, δDg values decrease by ∼17‰; this is associated with surface uplift in the catchment area. After 3.5 Ma, δDg values show abrupt deuterium enrichment, which we associate with (1) the attainment of threshold elevations for blocking moisture transport in the basin-bounding ranges to the east, and (2) the onset of semiarid conditions in the basin. Such orographic barriers throughout the eastern flanks of the Central Andes have impeded moisture transport into the orogen interior; this has likely helped maintain aridity and internal drainage conditions on the adjacent Andean Plateau.
Fil: Pingel, Heiko. Universität Potsdam; Alemania
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina
Fil: Mulch, Andreas. Goethe Universitat Frankfurt; Alemania. Biodiversität und Klima Forschungszentrum; Alemania
Fil: Rohrmann, Alexander. Universität Potsdam; Alemania
Fil: Sudo, Masafumi. Universität Potsdam; Alemania
Fil: Strecker, R.. Universität Potsdam; Alemania
Materia
Pliocene
Orographic
Isotopes
Andes
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:11336/7157
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Pliocene Orographic Barrier Uplift in the Southern Central AndesPingel, HeikoAlonso, Ricardo NarcisoMulch, AndreasRohrmann, AlexanderSudo, MasafumiStrecker, R.PlioceneOrographicIsotopesAndeshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Sedimentary basin fills along the windward flanks of orogenic plateaus are valuable archives of paleoenvironmental change with the potential to resolve the history of surface uplift and orographic barrier formation. The intermontane basins of the southern Central Andes contain thick successions of sedimentary material that are commonly interbedded with datable volcanic ashes. We relate variations in the hydrogen isotopic composition of hydrated volcanic glass (δDg) of Neogene to Quaternary fills in the semiarid intermontane Humahuaca Basin (Eastern Cordillera, northwest Argentina) to spatiotemporal changes in topography and associated orographic effects. δD values from volcanic glass in the basin strata (–117‰ to –98‰) show two main trends that accompany observed tectonosedimentary events in the study area. Between 6.0 and 3.5 Ma, δDg values decrease by ∼17‰; this is associated with surface uplift in the catchment area. After 3.5 Ma, δDg values show abrupt deuterium enrichment, which we associate with (1) the attainment of threshold elevations for blocking moisture transport in the basin-bounding ranges to the east, and (2) the onset of semiarid conditions in the basin. Such orographic barriers throughout the eastern flanks of the Central Andes have impeded moisture transport into the orogen interior; this has likely helped maintain aridity and internal drainage conditions on the adjacent Andean Plateau.Fil: Pingel, Heiko. Universität Potsdam; AlemaniaFil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; ArgentinaFil: Mulch, Andreas. Goethe Universitat Frankfurt; Alemania. Biodiversität und Klima Forschungszentrum; AlemaniaFil: Rohrmann, Alexander. Universität Potsdam; AlemaniaFil: Sudo, Masafumi. Universität Potsdam; AlemaniaFil: Strecker, R.. Universität Potsdam; AlemaniaGeological Society Of America2014-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7157Pingel, Heiko; Alonso, Ricardo Narciso; Mulch, Andreas; Rohrmann, Alexander; Sudo, Masafumi; et al.; Pliocene Orographic Barrier Uplift in the Southern Central Andes; Geological Society Of America; Geology; 42; 8; 8-2014; 691-6940091-7613enginfo:eu-repo/semantics/altIdentifier/url/http://geology.gsapubs.org/content/early/2014/06/26/G35538.1.abstractinfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1130/G35538.1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:12:36Zoai:ri.conicet.gov.ar:11336/7157instacron: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 10:12:36.334CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pliocene Orographic Barrier Uplift in the Southern Central Andes
title Pliocene Orographic Barrier Uplift in the Southern Central Andes
spellingShingle Pliocene Orographic Barrier Uplift in the Southern Central Andes
Pingel, Heiko
Pliocene
Orographic
Isotopes
Andes
title_short Pliocene Orographic Barrier Uplift in the Southern Central Andes
title_full Pliocene Orographic Barrier Uplift in the Southern Central Andes
title_fullStr Pliocene Orographic Barrier Uplift in the Southern Central Andes
title_full_unstemmed Pliocene Orographic Barrier Uplift in the Southern Central Andes
title_sort Pliocene Orographic Barrier Uplift in the Southern Central Andes
dc.creator.none.fl_str_mv Pingel, Heiko
Alonso, Ricardo Narciso
Mulch, Andreas
Rohrmann, Alexander
Sudo, Masafumi
Strecker, R.
author Pingel, Heiko
author_facet Pingel, Heiko
Alonso, Ricardo Narciso
Mulch, Andreas
Rohrmann, Alexander
Sudo, Masafumi
Strecker, R.
author_role author
author2 Alonso, Ricardo Narciso
Mulch, Andreas
Rohrmann, Alexander
Sudo, Masafumi
Strecker, R.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Pliocene
Orographic
Isotopes
Andes
topic Pliocene
Orographic
Isotopes
Andes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Sedimentary basin fills along the windward flanks of orogenic plateaus are valuable archives of paleoenvironmental change with the potential to resolve the history of surface uplift and orographic barrier formation. The intermontane basins of the southern Central Andes contain thick successions of sedimentary material that are commonly interbedded with datable volcanic ashes. We relate variations in the hydrogen isotopic composition of hydrated volcanic glass (δDg) of Neogene to Quaternary fills in the semiarid intermontane Humahuaca Basin (Eastern Cordillera, northwest Argentina) to spatiotemporal changes in topography and associated orographic effects. δD values from volcanic glass in the basin strata (–117‰ to –98‰) show two main trends that accompany observed tectonosedimentary events in the study area. Between 6.0 and 3.5 Ma, δDg values decrease by ∼17‰; this is associated with surface uplift in the catchment area. After 3.5 Ma, δDg values show abrupt deuterium enrichment, which we associate with (1) the attainment of threshold elevations for blocking moisture transport in the basin-bounding ranges to the east, and (2) the onset of semiarid conditions in the basin. Such orographic barriers throughout the eastern flanks of the Central Andes have impeded moisture transport into the orogen interior; this has likely helped maintain aridity and internal drainage conditions on the adjacent Andean Plateau.
Fil: Pingel, Heiko. Universität Potsdam; Alemania
Fil: Alonso, Ricardo Narciso. Universidad Nacional de Salta; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina
Fil: Mulch, Andreas. Goethe Universitat Frankfurt; Alemania. Biodiversität und Klima Forschungszentrum; Alemania
Fil: Rohrmann, Alexander. Universität Potsdam; Alemania
Fil: Sudo, Masafumi. Universität Potsdam; Alemania
Fil: Strecker, R.. Universität Potsdam; Alemania
description Sedimentary basin fills along the windward flanks of orogenic plateaus are valuable archives of paleoenvironmental change with the potential to resolve the history of surface uplift and orographic barrier formation. The intermontane basins of the southern Central Andes contain thick successions of sedimentary material that are commonly interbedded with datable volcanic ashes. We relate variations in the hydrogen isotopic composition of hydrated volcanic glass (δDg) of Neogene to Quaternary fills in the semiarid intermontane Humahuaca Basin (Eastern Cordillera, northwest Argentina) to spatiotemporal changes in topography and associated orographic effects. δD values from volcanic glass in the basin strata (–117‰ to –98‰) show two main trends that accompany observed tectonosedimentary events in the study area. Between 6.0 and 3.5 Ma, δDg values decrease by ∼17‰; this is associated with surface uplift in the catchment area. After 3.5 Ma, δDg values show abrupt deuterium enrichment, which we associate with (1) the attainment of threshold elevations for blocking moisture transport in the basin-bounding ranges to the east, and (2) the onset of semiarid conditions in the basin. Such orographic barriers throughout the eastern flanks of the Central Andes have impeded moisture transport into the orogen interior; this has likely helped maintain aridity and internal drainage conditions on the adjacent Andean Plateau.
publishDate 2014
dc.date.none.fl_str_mv 2014-08
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/11336/7157
Pingel, Heiko; Alonso, Ricardo Narciso; Mulch, Andreas; Rohrmann, Alexander; Sudo, Masafumi; et al.; Pliocene Orographic Barrier Uplift in the Southern Central Andes; Geological Society Of America; Geology; 42; 8; 8-2014; 691-694
0091-7613
url http://hdl.handle.net/11336/7157
identifier_str_mv Pingel, Heiko; Alonso, Ricardo Narciso; Mulch, Andreas; Rohrmann, Alexander; Sudo, Masafumi; et al.; Pliocene Orographic Barrier Uplift in the Southern Central Andes; Geological Society Of America; Geology; 42; 8; 8-2014; 691-694
0091-7613
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://geology.gsapubs.org/content/early/2014/06/26/G35538.1.abstract
info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1130/G35538.1
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 Geological Society Of America
publisher.none.fl_str_mv Geological Society Of America
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
_version_ 1844614034853199872
score 13.070432

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