Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina

Autores
Payrola Bosio, Patricio Augusto; Zapata, Matias Sebastian; Sobel, Edward Robert; del Papa, Cecilia Eugenia; Pingel, Heiko; Glodny, Johannes; Ledesma, Jonathan Hernán
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
As an integral part of the Eastern Cordillera, the fault-bounded Malcante mountain range (up to 5100 m) in the NW Argentine Andes (ca. 25°S) is located in the transition between the arid Puna Plateau to the west and the humid broken foreland to the east. At this latitude, the topographic gradient of the eastern Andean margin forms an efficient orographic barrier that causes pronounced east–west rainfall and surface-process gradients. In this setting, the Malcante Range is an important, yet poorly studied structural high formed during the Cenozoic topographic growth of the Central Andes. In this study, we combine (a) detailed field observations, (b) a two-dimensional structural reconstruction, (c) apatite fission track and (U–Th-Sm)/He thermochronology of bedrock samples from a vertical transect across the western flank of the Malcante Range, and (d) inverse thermal modelling using QTQt software with the aim of deciphering the exhumation history of this mountain range. Field data indicate the presence of an angular unconformity between Cenozoic foreland deposits and older sedimentary strata, suggesting an initial episode of deformation during the middle-late Eocene, while our thermal model constrains the onset of exhumation at ~10 Ma. We suggest that exhumation was related to the unroofing of the easily erodible sedimentary cover, which prevented significant initial surface uplift. This may have changed as more resilient bedrock was exposed at ~5 Ma according to the thermal model, promoting rapid rock uplift. In combination with published data, our thermochronology allows us to speculate on the existence of a zone of deformation concentrated in the area of the present-day Pasha (24.5°S), Malcante (25°S), and Agua de Castilla (25.4°S) mountain ranges by ca. 10 Ma.
Fil: Payrola Bosio, Patricio Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
Fil: Zapata, Matias Sebastian. Smithsonian Tropical Research Institute; Panamá. University of Missouri; Estados Unidos
Fil: Sobel, Edward Robert. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; Alemania
Fil: del Papa, Cecilia Eugenia. 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: Pingel, Heiko. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; Alemania
Fil: Glodny, Johannes. German Research Centre for Geosciences; Alemania
Fil: Ledesma, Jonathan Hernán. 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
Materia
APATITE (U–TH)/HE
APATITE FISSION TRACK
EASTERN CORDILLERA
MOUNTAIN BUILDING
NW ARGENTINA
THERMOCHRONOLOGY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/141199
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/141199
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW ArgentinaPayrola Bosio, Patricio AugustoZapata, Matias SebastianSobel, Edward Robertdel Papa, Cecilia EugeniaPingel, HeikoGlodny, JohannesLedesma, Jonathan HernánAPATITE (U–TH)/HEAPATITE FISSION TRACKEASTERN CORDILLERAMOUNTAIN BUILDINGNW ARGENTINATHERMOCHRONOLOGYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1As an integral part of the Eastern Cordillera, the fault-bounded Malcante mountain range (up to 5100 m) in the NW Argentine Andes (ca. 25°S) is located in the transition between the arid Puna Plateau to the west and the humid broken foreland to the east. At this latitude, the topographic gradient of the eastern Andean margin forms an efficient orographic barrier that causes pronounced east–west rainfall and surface-process gradients. In this setting, the Malcante Range is an important, yet poorly studied structural high formed during the Cenozoic topographic growth of the Central Andes. In this study, we combine (a) detailed field observations, (b) a two-dimensional structural reconstruction, (c) apatite fission track and (U–Th-Sm)/He thermochronology of bedrock samples from a vertical transect across the western flank of the Malcante Range, and (d) inverse thermal modelling using QTQt software with the aim of deciphering the exhumation history of this mountain range. Field data indicate the presence of an angular unconformity between Cenozoic foreland deposits and older sedimentary strata, suggesting an initial episode of deformation during the middle-late Eocene, while our thermal model constrains the onset of exhumation at ~10 Ma. We suggest that exhumation was related to the unroofing of the easily erodible sedimentary cover, which prevented significant initial surface uplift. This may have changed as more resilient bedrock was exposed at ~5 Ma according to the thermal model, promoting rapid rock uplift. In combination with published data, our thermochronology allows us to speculate on the existence of a zone of deformation concentrated in the area of the present-day Pasha (24.5°S), Malcante (25°S), and Agua de Castilla (25.4°S) mountain ranges by ca. 10 Ma.Fil: Payrola Bosio, Patricio Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; ArgentinaFil: Zapata, Matias Sebastian. Smithsonian Tropical Research Institute; Panamá. University of Missouri; Estados UnidosFil: Sobel, Edward Robert. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; AlemaniaFil: del Papa, Cecilia Eugenia. 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: Pingel, Heiko. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; AlemaniaFil: Glodny, Johannes. German Research Centre for Geosciences; AlemaniaFil: Ledesma, Jonathan Hernán. 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; ArgentinaPergamon-Elsevier Science Ltd2021-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/141199Payrola Bosio, Patricio Augusto; Zapata, Matias Sebastian; Sobel, Edward Robert; del Papa, Cecilia Eugenia; Pingel, Heiko; et al.; Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 105; 1-2021; 1-44; 1029900895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102990info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120305332info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:45:17Zoai:ri.conicet.gov.ar:11336/141199instacron: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 09:45:17.467CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
title Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
spellingShingle Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
Payrola Bosio, Patricio Augusto
APATITE (U–TH)/HE
APATITE FISSION TRACK
EASTERN CORDILLERA
MOUNTAIN BUILDING
NW ARGENTINA
THERMOCHRONOLOGY
title_short Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
title_full Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
title_fullStr Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
title_full_unstemmed Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
title_sort Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina
dc.creator.none.fl_str_mv Payrola Bosio, Patricio Augusto
Zapata, Matias Sebastian
Sobel, Edward Robert
del Papa, Cecilia Eugenia
Pingel, Heiko
Glodny, Johannes
Ledesma, Jonathan Hernán
author Payrola Bosio, Patricio Augusto
author_facet Payrola Bosio, Patricio Augusto
Zapata, Matias Sebastian
Sobel, Edward Robert
del Papa, Cecilia Eugenia
Pingel, Heiko
Glodny, Johannes
Ledesma, Jonathan Hernán
author_role author
author2 Zapata, Matias Sebastian
Sobel, Edward Robert
del Papa, Cecilia Eugenia
Pingel, Heiko
Glodny, Johannes
Ledesma, Jonathan Hernán
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv APATITE (U–TH)/HE
APATITE FISSION TRACK
EASTERN CORDILLERA
MOUNTAIN BUILDING
NW ARGENTINA
THERMOCHRONOLOGY
topic APATITE (U–TH)/HE
APATITE FISSION TRACK
EASTERN CORDILLERA
MOUNTAIN BUILDING
NW ARGENTINA
THERMOCHRONOLOGY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv As an integral part of the Eastern Cordillera, the fault-bounded Malcante mountain range (up to 5100 m) in the NW Argentine Andes (ca. 25°S) is located in the transition between the arid Puna Plateau to the west and the humid broken foreland to the east. At this latitude, the topographic gradient of the eastern Andean margin forms an efficient orographic barrier that causes pronounced east–west rainfall and surface-process gradients. In this setting, the Malcante Range is an important, yet poorly studied structural high formed during the Cenozoic topographic growth of the Central Andes. In this study, we combine (a) detailed field observations, (b) a two-dimensional structural reconstruction, (c) apatite fission track and (U–Th-Sm)/He thermochronology of bedrock samples from a vertical transect across the western flank of the Malcante Range, and (d) inverse thermal modelling using QTQt software with the aim of deciphering the exhumation history of this mountain range. Field data indicate the presence of an angular unconformity between Cenozoic foreland deposits and older sedimentary strata, suggesting an initial episode of deformation during the middle-late Eocene, while our thermal model constrains the onset of exhumation at ~10 Ma. We suggest that exhumation was related to the unroofing of the easily erodible sedimentary cover, which prevented significant initial surface uplift. This may have changed as more resilient bedrock was exposed at ~5 Ma according to the thermal model, promoting rapid rock uplift. In combination with published data, our thermochronology allows us to speculate on the existence of a zone of deformation concentrated in the area of the present-day Pasha (24.5°S), Malcante (25°S), and Agua de Castilla (25.4°S) mountain ranges by ca. 10 Ma.
Fil: Payrola Bosio, Patricio Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Salta. Instituto de Bio y Geociencias del NOA. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Museo de Ciencias Naturales. Instituto de Bio y Geociencias del NOA; Argentina
Fil: Zapata, Matias Sebastian. Smithsonian Tropical Research Institute; Panamá. University of Missouri; Estados Unidos
Fil: Sobel, Edward Robert. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; Alemania
Fil: del Papa, Cecilia Eugenia. 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: Pingel, Heiko. Universitat Potsdam. Mathematisch Nautrwissenschaften Fakultat. Institut für Geowissenschaften; Alemania
Fil: Glodny, Johannes. German Research Centre for Geosciences; Alemania
Fil: Ledesma, Jonathan Hernán. 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
description As an integral part of the Eastern Cordillera, the fault-bounded Malcante mountain range (up to 5100 m) in the NW Argentine Andes (ca. 25°S) is located in the transition between the arid Puna Plateau to the west and the humid broken foreland to the east. At this latitude, the topographic gradient of the eastern Andean margin forms an efficient orographic barrier that causes pronounced east–west rainfall and surface-process gradients. In this setting, the Malcante Range is an important, yet poorly studied structural high formed during the Cenozoic topographic growth of the Central Andes. In this study, we combine (a) detailed field observations, (b) a two-dimensional structural reconstruction, (c) apatite fission track and (U–Th-Sm)/He thermochronology of bedrock samples from a vertical transect across the western flank of the Malcante Range, and (d) inverse thermal modelling using QTQt software with the aim of deciphering the exhumation history of this mountain range. Field data indicate the presence of an angular unconformity between Cenozoic foreland deposits and older sedimentary strata, suggesting an initial episode of deformation during the middle-late Eocene, while our thermal model constrains the onset of exhumation at ~10 Ma. We suggest that exhumation was related to the unroofing of the easily erodible sedimentary cover, which prevented significant initial surface uplift. This may have changed as more resilient bedrock was exposed at ~5 Ma according to the thermal model, promoting rapid rock uplift. In combination with published data, our thermochronology allows us to speculate on the existence of a zone of deformation concentrated in the area of the present-day Pasha (24.5°S), Malcante (25°S), and Agua de Castilla (25.4°S) mountain ranges by ca. 10 Ma.
publishDate 2021
dc.date.none.fl_str_mv 2021-01
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/11336/141199
Payrola Bosio, Patricio Augusto; Zapata, Matias Sebastian; Sobel, Edward Robert; del Papa, Cecilia Eugenia; Pingel, Heiko; et al.; Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 105; 1-2021; 1-44; 102990
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/141199
identifier_str_mv Payrola Bosio, Patricio Augusto; Zapata, Matias Sebastian; Sobel, Edward Robert; del Papa, Cecilia Eugenia; Pingel, Heiko; et al.; Exhumation and structural evolution of the high-elevation Malcante Range, Eastern Cordillera, NW Argentina; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 105; 1-2021; 1-44; 102990
0895-9811
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2020.102990
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0895981120305332
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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