First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes
- Autores
- Moreiras, Stella Maris; Paez, Maria Solange; Lauro, Carolina; Jeanneret, Pilar
- Año de publicación
- 2017
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- This paper presents the first numerical cosmogenic ages of glacial deposits from the eastern slope of the Plata peak (6000) in the arid Central Andes (32° S). The moraines are distributed along three different valleys: Vallecitos, Angostura, and Las Mulas. In the first, only one moraine was identified and no blocks could be sampled for dating. The other two have evidence of two glacial advances, Angostura I and Angostura II. The advances Loma de los Morteritos I and II were recognised in the Las Mulas valley. In both cases, first and second advances are preserved at a similar altitude. Surface boulders on the top of moraines were sampled for Be10. Obtained ages are all similar and Late Pleistocene in age. They fit very well with local stratigraphy and regional paleoclimate evidence. The Loma de los Morteritos moraine II located at 3000 masl dated to ∼25,000 years. Ages of ∼8,000 and ∼12,000 years were found for the Angostura II deposit (∼3300 masl). An age was obtained for the outwash deposit identified along the El Salto valley (∼69,000 years) associated with a Late Pleistocene drift. Quantitative datings presented here improve knowledge about the glacial chronology of the Plata range and Quaternary stratigraphy of the Central Andes, even though they represent a maximum age for these glacial advances. New findings support the occurrence of two Late Pleistocene glacial advances, and an older one in the Blanco River valley. Adjusted ages around ∼8,000 and ∼25,000 years for younger stage could be evidence of the Last Glacial Maximum (LGM) period for this region.
Fil: Moreiras, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina
Fil: Paez, Maria Solange. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Lauro, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Fil: Jeanneret, Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina - Materia
-
Argentina
Blanco River
Central Andes
Glaciations
Tcn - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/60544
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First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central AndesMoreiras, Stella MarisPaez, Maria SolangeLauro, CarolinaJeanneret, PilarArgentinaBlanco RiverCentral AndesGlaciationsTcnhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This paper presents the first numerical cosmogenic ages of glacial deposits from the eastern slope of the Plata peak (6000) in the arid Central Andes (32° S). The moraines are distributed along three different valleys: Vallecitos, Angostura, and Las Mulas. In the first, only one moraine was identified and no blocks could be sampled for dating. The other two have evidence of two glacial advances, Angostura I and Angostura II. The advances Loma de los Morteritos I and II were recognised in the Las Mulas valley. In both cases, first and second advances are preserved at a similar altitude. Surface boulders on the top of moraines were sampled for Be10. Obtained ages are all similar and Late Pleistocene in age. They fit very well with local stratigraphy and regional paleoclimate evidence. The Loma de los Morteritos moraine II located at 3000 masl dated to ∼25,000 years. Ages of ∼8,000 and ∼12,000 years were found for the Angostura II deposit (∼3300 masl). An age was obtained for the outwash deposit identified along the El Salto valley (∼69,000 years) associated with a Late Pleistocene drift. Quantitative datings presented here improve knowledge about the glacial chronology of the Plata range and Quaternary stratigraphy of the Central Andes, even though they represent a maximum age for these glacial advances. New findings support the occurrence of two Late Pleistocene glacial advances, and an older one in the Blanco River valley. Adjusted ages around ∼8,000 and ∼25,000 years for younger stage could be evidence of the Last Glacial Maximum (LGM) period for this region.Fil: Moreiras, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; ArgentinaFil: Paez, Maria Solange. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Lauro, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaFil: Jeanneret, Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaPergamon-Elsevier Science Ltd2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60544Moreiras, Stella Maris; Paez, Maria Solange; Lauro, Carolina; Jeanneret, Pilar; First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes; Pergamon-Elsevier Science Ltd; Quaternary International; 438; 5-2017; 50-641040-6182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.quaint.2016.08.041info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S104061821630009Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:02Zoai:ri.conicet.gov.ar:11336/60544instacron: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 09:50:02.406CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
title |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
spellingShingle |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes Moreiras, Stella Maris Argentina Blanco River Central Andes Glaciations Tcn |
title_short |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
title_full |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
title_fullStr |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
title_full_unstemmed |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
title_sort |
First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes |
dc.creator.none.fl_str_mv |
Moreiras, Stella Maris Paez, Maria Solange Lauro, Carolina Jeanneret, Pilar |
author |
Moreiras, Stella Maris |
author_facet |
Moreiras, Stella Maris Paez, Maria Solange Lauro, Carolina Jeanneret, Pilar |
author_role |
author |
author2 |
Paez, Maria Solange Lauro, Carolina Jeanneret, Pilar |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Argentina Blanco River Central Andes Glaciations Tcn |
topic |
Argentina Blanco River Central Andes Glaciations Tcn |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
This paper presents the first numerical cosmogenic ages of glacial deposits from the eastern slope of the Plata peak (6000) in the arid Central Andes (32° S). The moraines are distributed along three different valleys: Vallecitos, Angostura, and Las Mulas. In the first, only one moraine was identified and no blocks could be sampled for dating. The other two have evidence of two glacial advances, Angostura I and Angostura II. The advances Loma de los Morteritos I and II were recognised in the Las Mulas valley. In both cases, first and second advances are preserved at a similar altitude. Surface boulders on the top of moraines were sampled for Be10. Obtained ages are all similar and Late Pleistocene in age. They fit very well with local stratigraphy and regional paleoclimate evidence. The Loma de los Morteritos moraine II located at 3000 masl dated to ∼25,000 years. Ages of ∼8,000 and ∼12,000 years were found for the Angostura II deposit (∼3300 masl). An age was obtained for the outwash deposit identified along the El Salto valley (∼69,000 years) associated with a Late Pleistocene drift. Quantitative datings presented here improve knowledge about the glacial chronology of the Plata range and Quaternary stratigraphy of the Central Andes, even though they represent a maximum age for these glacial advances. New findings support the occurrence of two Late Pleistocene glacial advances, and an older one in the Blanco River valley. Adjusted ages around ∼8,000 and ∼25,000 years for younger stage could be evidence of the Last Glacial Maximum (LGM) period for this region. Fil: Moreiras, Stella Maris. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina. Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias; Argentina Fil: Paez, Maria Solange. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Lauro, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina Fil: Jeanneret, Pilar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina |
description |
This paper presents the first numerical cosmogenic ages of glacial deposits from the eastern slope of the Plata peak (6000) in the arid Central Andes (32° S). The moraines are distributed along three different valleys: Vallecitos, Angostura, and Las Mulas. In the first, only one moraine was identified and no blocks could be sampled for dating. The other two have evidence of two glacial advances, Angostura I and Angostura II. The advances Loma de los Morteritos I and II were recognised in the Las Mulas valley. In both cases, first and second advances are preserved at a similar altitude. Surface boulders on the top of moraines were sampled for Be10. Obtained ages are all similar and Late Pleistocene in age. They fit very well with local stratigraphy and regional paleoclimate evidence. The Loma de los Morteritos moraine II located at 3000 masl dated to ∼25,000 years. Ages of ∼8,000 and ∼12,000 years were found for the Angostura II deposit (∼3300 masl). An age was obtained for the outwash deposit identified along the El Salto valley (∼69,000 years) associated with a Late Pleistocene drift. Quantitative datings presented here improve knowledge about the glacial chronology of the Plata range and Quaternary stratigraphy of the Central Andes, even though they represent a maximum age for these glacial advances. New findings support the occurrence of two Late Pleistocene glacial advances, and an older one in the Blanco River valley. Adjusted ages around ∼8,000 and ∼25,000 years for younger stage could be evidence of the Last Glacial Maximum (LGM) period for this region. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05 |
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/11336/60544 Moreiras, Stella Maris; Paez, Maria Solange; Lauro, Carolina; Jeanneret, Pilar; First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes; Pergamon-Elsevier Science Ltd; Quaternary International; 438; 5-2017; 50-64 1040-6182 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/60544 |
identifier_str_mv |
Moreiras, Stella Maris; Paez, Maria Solange; Lauro, Carolina; Jeanneret, Pilar; First cosmogenic ages for glacial deposits from the Plata range (33° S): New inferences for Quaternary landscape evolution in the Central Andes; Pergamon-Elsevier Science Ltd; Quaternary International; 438; 5-2017; 50-64 1040-6182 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.quaint.2016.08.041 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S104061821630009X |
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 |
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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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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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1844613544585199616 |
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13.070432 |