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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/38126
Ver los metadatos del registro completo
id |
CONICETDig_9b9989c43397852c0f03218606ed6dd2 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/38126 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf 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 |
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_ |
1844613330194399232 |
score |
13.070432 |