Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna

Autores
López Steinmetz, Romina Lucrecia; Galli, Claudia Inés
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The environment of the Andean Puna Plateau is mostly characterized by the dominance of evaporative processes due to aridity. Since the intermittent runoff lacks the morphodynamic competence to generate the present day landscape, authors have usually considered that the Puna landscape is a remnant feature of the Miocene arid-climate persistence. Then, a Quaternary-sensu lato-age was assigned to salars, alluvial fans and other geomorphologies. We present evidences from the endorheic depression of Guayatayoc-Salinas Grandes (GSG) located at 3,400 m a.s.l. in the eastern border of northen Puna. The basin includes a saline playa domain in the north (Guayatayoc Playa Lake) and a salt pan in the southern part (Salinas Grandes). We have identified two dissimilar processes originating the subdivision of the GSG depression. The characterization of those processes included sedimentological and geomorphological observations, as well as chronologies using luminescence and radiocarbon. Evidences reveal the development of a saline-lacustrine water body that is associated with the Last Glacial Maximum. During the Late Pleistocene and until ~13.8 cal kyr BP, lake shores were modelled in the front of distal-alluvial fans, the sedimentary aggradation was widespread, and associated with kaoliniticclay accumulation, inyoite, and the formation of peat-deposits. An environmental change towards aridity occurred after 13.8 cal kyr BP, and wetter conditions returned during the early to middle Holocene, around 9 cal kyr BP. Then, incisive river dynamics accompanied the establishment of a playa lake, with montmorillonitic-fine sediments and ulexite generation during later Holocene. The subdivision of the GSG depression onset by the two following processes: 1. the topographic decoupling, that is associated with Las Burras’s alluvial fan aggradation during Pleistocene; 2. the lacustrine regression phase at 13.8 cal kyr BP. Therefore, Guayatayoc and Salinas Grandes are saline systems functioning as a playa lake and a salt pan, respectively, since the Holocene, due to environmental constraints.
Fil: López Steinmetz, Romina Lucrecia. Universidad Nacional de Jujuy. Instituto de Geología Minera; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Galli, Claudia Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Universidad Nacional de Jujuy. Facultad de Ingeniería; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
Materia
ANDES
PLAYA LAKE
QUATERNARY
SALAR
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/38126

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network_name_str CONICET Digital (CONICET)
spelling Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern PunaCambio hidrológico asociado al Último Máximo Glacial-Altitermal durante la transición Pleistoceno-Holoceno en el borde oriental de Puna NorteLópez Steinmetz, Romina LucreciaGalli, Claudia InésANDESPLAYA LAKEQUATERNARYSALARhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The environment of the Andean Puna Plateau is mostly characterized by the dominance of evaporative processes due to aridity. Since the intermittent runoff lacks the morphodynamic competence to generate the present day landscape, authors have usually considered that the Puna landscape is a remnant feature of the Miocene arid-climate persistence. Then, a Quaternary-sensu lato-age was assigned to salars, alluvial fans and other geomorphologies. We present evidences from the endorheic depression of Guayatayoc-Salinas Grandes (GSG) located at 3,400 m a.s.l. in the eastern border of northen Puna. The basin includes a saline playa domain in the north (Guayatayoc Playa Lake) and a salt pan in the southern part (Salinas Grandes). We have identified two dissimilar processes originating the subdivision of the GSG depression. The characterization of those processes included sedimentological and geomorphological observations, as well as chronologies using luminescence and radiocarbon. Evidences reveal the development of a saline-lacustrine water body that is associated with the Last Glacial Maximum. During the Late Pleistocene and until ~13.8 cal kyr BP, lake shores were modelled in the front of distal-alluvial fans, the sedimentary aggradation was widespread, and associated with kaoliniticclay accumulation, inyoite, and the formation of peat-deposits. An environmental change towards aridity occurred after 13.8 cal kyr BP, and wetter conditions returned during the early to middle Holocene, around 9 cal kyr BP. Then, incisive river dynamics accompanied the establishment of a playa lake, with montmorillonitic-fine sediments and ulexite generation during later Holocene. The subdivision of the GSG depression onset by the two following processes: 1. the topographic decoupling, that is associated with Las Burras’s alluvial fan aggradation during Pleistocene; 2. the lacustrine regression phase at 13.8 cal kyr BP. Therefore, Guayatayoc and Salinas Grandes are saline systems functioning as a playa lake and a salt pan, respectively, since the Holocene, due to environmental constraints.Fil: López Steinmetz, Romina Lucrecia. Universidad Nacional de Jujuy. Instituto de Geología Minera; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Galli, Claudia Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Universidad Nacional de Jujuy. Facultad de Ingeniería; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; ArgentinaServicio Nacional de Geología y Minería2015-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38126López Steinmetz, Romina Lucrecia; Galli, Claudia Inés; Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna; Servicio Nacional de Geología y Minería; Andean Geology; 42; 1; 1-2015; 1-190718-70920718-7106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.cl/pdf/andgeol/v42n1/art01.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.5027/andgeoV42n1-a01info:eu-repo/semantics/altIdentifier/url/http://www.andeangeology.cl/index.php/revista1/article/view/V42n1-a01info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=173936233001info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:12Zoai:ri.conicet.gov.ar:11336/38126instacron: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 09:42:13.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
Cambio hidrológico asociado al Último Máximo Glacial-Altitermal durante la transición Pleistoceno-Holoceno en el borde oriental de Puna Norte
title Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
spellingShingle Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
López Steinmetz, Romina Lucrecia
ANDES
PLAYA LAKE
QUATERNARY
SALAR
title_short Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
title_full Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
title_fullStr Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
title_full_unstemmed Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
title_sort Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna
dc.creator.none.fl_str_mv López Steinmetz, Romina Lucrecia
Galli, Claudia Inés
author López Steinmetz, Romina Lucrecia
author_facet López Steinmetz, Romina Lucrecia
Galli, Claudia Inés
author_role author
author2 Galli, Claudia Inés
author2_role author
dc.subject.none.fl_str_mv ANDES
PLAYA LAKE
QUATERNARY
SALAR
topic ANDES
PLAYA LAKE
QUATERNARY
SALAR
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 environment of the Andean Puna Plateau is mostly characterized by the dominance of evaporative processes due to aridity. Since the intermittent runoff lacks the morphodynamic competence to generate the present day landscape, authors have usually considered that the Puna landscape is a remnant feature of the Miocene arid-climate persistence. Then, a Quaternary-sensu lato-age was assigned to salars, alluvial fans and other geomorphologies. We present evidences from the endorheic depression of Guayatayoc-Salinas Grandes (GSG) located at 3,400 m a.s.l. in the eastern border of northen Puna. The basin includes a saline playa domain in the north (Guayatayoc Playa Lake) and a salt pan in the southern part (Salinas Grandes). We have identified two dissimilar processes originating the subdivision of the GSG depression. The characterization of those processes included sedimentological and geomorphological observations, as well as chronologies using luminescence and radiocarbon. Evidences reveal the development of a saline-lacustrine water body that is associated with the Last Glacial Maximum. During the Late Pleistocene and until ~13.8 cal kyr BP, lake shores were modelled in the front of distal-alluvial fans, the sedimentary aggradation was widespread, and associated with kaoliniticclay accumulation, inyoite, and the formation of peat-deposits. An environmental change towards aridity occurred after 13.8 cal kyr BP, and wetter conditions returned during the early to middle Holocene, around 9 cal kyr BP. Then, incisive river dynamics accompanied the establishment of a playa lake, with montmorillonitic-fine sediments and ulexite generation during later Holocene. The subdivision of the GSG depression onset by the two following processes: 1. the topographic decoupling, that is associated with Las Burras’s alluvial fan aggradation during Pleistocene; 2. the lacustrine regression phase at 13.8 cal kyr BP. Therefore, Guayatayoc and Salinas Grandes are saline systems functioning as a playa lake and a salt pan, respectively, since the Holocene, due to environmental constraints.
Fil: López Steinmetz, Romina Lucrecia. Universidad Nacional de Jujuy. Instituto de Geología Minera; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Galli, Claudia Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones y Transferencia de Jujuy. Universidad Nacional de Jujuy. Centro de Investigaciones y Transferencia de Jujuy; Argentina. Universidad Nacional de Jujuy. Facultad de Ingeniería; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina
description The environment of the Andean Puna Plateau is mostly characterized by the dominance of evaporative processes due to aridity. Since the intermittent runoff lacks the morphodynamic competence to generate the present day landscape, authors have usually considered that the Puna landscape is a remnant feature of the Miocene arid-climate persistence. Then, a Quaternary-sensu lato-age was assigned to salars, alluvial fans and other geomorphologies. We present evidences from the endorheic depression of Guayatayoc-Salinas Grandes (GSG) located at 3,400 m a.s.l. in the eastern border of northen Puna. The basin includes a saline playa domain in the north (Guayatayoc Playa Lake) and a salt pan in the southern part (Salinas Grandes). We have identified two dissimilar processes originating the subdivision of the GSG depression. The characterization of those processes included sedimentological and geomorphological observations, as well as chronologies using luminescence and radiocarbon. Evidences reveal the development of a saline-lacustrine water body that is associated with the Last Glacial Maximum. During the Late Pleistocene and until ~13.8 cal kyr BP, lake shores were modelled in the front of distal-alluvial fans, the sedimentary aggradation was widespread, and associated with kaoliniticclay accumulation, inyoite, and the formation of peat-deposits. An environmental change towards aridity occurred after 13.8 cal kyr BP, and wetter conditions returned during the early to middle Holocene, around 9 cal kyr BP. Then, incisive river dynamics accompanied the establishment of a playa lake, with montmorillonitic-fine sediments and ulexite generation during later Holocene. The subdivision of the GSG depression onset by the two following processes: 1. the topographic decoupling, that is associated with Las Burras’s alluvial fan aggradation during Pleistocene; 2. the lacustrine regression phase at 13.8 cal kyr BP. Therefore, Guayatayoc and Salinas Grandes are saline systems functioning as a playa lake and a salt pan, respectively, since the Holocene, due to environmental constraints.
publishDate 2015
dc.date.none.fl_str_mv 2015-01
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/11336/38126
López Steinmetz, Romina Lucrecia; Galli, Claudia Inés; Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna; Servicio Nacional de Geología y Minería; Andean Geology; 42; 1; 1-2015; 1-19
0718-7092
0718-7106
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38126
identifier_str_mv López Steinmetz, Romina Lucrecia; Galli, Claudia Inés; Hydrological change during the pleistocene-holocene transition associated with the last glacial maximum-altithermal in the eastern border of northern Puna; Servicio Nacional de Geología y Minería; Andean Geology; 42; 1; 1-2015; 1-19
0718-7092
0718-7106
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.scielo.cl/pdf/andgeol/v42n1/art01.pdf
info:eu-repo/semantics/altIdentifier/doi/10.5027/andgeoV42n1-a01
info:eu-repo/semantics/altIdentifier/url/http://www.andeangeology.cl/index.php/revista1/article/view/V42n1-a01
info:eu-repo/semantics/altIdentifier/url/http://www.redalyc.org/articulo.oa?id=173936233001
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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application/pdf
dc.publisher.none.fl_str_mv Servicio Nacional de Geología y Minería
publisher.none.fl_str_mv Servicio Nacional de Geología y Minería
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
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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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