Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina

The piedmont of Cordillera Frontal between c. 33° and 34°S (Mendoza, Argentina) is a highly populated area deeply modified by human activities, known as Valle de Uco. It is situated within the borderland region of the geological provinces of Cordillera Frontal and Cuyo basin. The landscape is domina...

Descripción completa

Detalles Bibliográficos
Autores: Zárate, Marcelo Arístides, Mehl, Adriana Ester, Perucca, Laura Patricia A.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/19364
Acceso en línea:http://hdl.handle.net/11336/19364
Access Level:acceso abierto
Palabra clave:Sedimentologia
Geomorfologia
Cuaternario
Piedemonte Cordillera Frontal
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
id AR_2d477d7d2fe513f91ef0a3b8cb22f795
oai_identifier_str oai:ri.conicet.gov.ar:11336/19364
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
title Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
spellingShingle Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
Zárate, Marcelo Arístides
Sedimentologia
Geomorfologia
Cuaternario
Piedemonte Cordillera Frontal
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
title_full Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
title_fullStr Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
title_full_unstemmed Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
title_sort Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina
dc.creator.none.fl_str_mv Zárate, Marcelo Arístides
Mehl, Adriana Ester
Perucca, Laura Patricia A.
author Zárate, Marcelo Arístides
author_facet Zárate, Marcelo Arístides
Mehl, Adriana Ester
Perucca, Laura Patricia A.
author_role author
author2 Mehl, Adriana Ester
Perucca, Laura Patricia A.
author2_role author
author
dc.subject.none.fl_str_mv Sedimentologia
Geomorfologia
Cuaternario
Piedemonte Cordillera Frontal
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Sedimentologia
Geomorfologia
Cuaternario
Piedemonte Cordillera Frontal
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The piedmont of Cordillera Frontal between c. 33° and 34°S (Mendoza, Argentina) is a highly populated area deeply modified by human activities, known as Valle de Uco. It is situated within the borderland region of the geological provinces of Cordillera Frontal and Cuyo basin. The landscape is dominantly composed of both erosional and depositional landforms made of fluvio-aeolian deposits fractured and folded by tectonic processes together with some landforms of volcanic origin. Alluvial fans, related to several aggradational cycles of Quaternary age, are the most remarkable geomorphological units. Several tectonic features are present giving rise to conspicuous morphological features. Some of the streams are structurally controlled by faults while several drainage anomalies that indicate active tectonic processes have been identified. The Late Quaternary alluvial sequences, dominantly comprising sandy and silty deposits of volcaniclastic composition and secondarily metamorphic rocks, represent the fine-grained sedimentary facies of the fluvial systems accumulated in a distal fan environment. The alluvial deposits have been incised by several episodes of erosion since Pleistocene time. The Andes Cordillera and the piedmont of Mendoza province (Argentina) are an active tectonic area characterized by a complex geological setting that determines a heterogeneous landscape. Of particular environmental and human significance is the piedmont of Cordillera Frontal between c. 33° and 34°S. Known as Valle de Uco, it is a highly populated area deeply modified by human activities and constitutes one of the three man-made agricultural oases of Mendoza province (Fig. 1). Consequently, the reconstruction of the piedmont evolution and the understanding of the processes involved are essential to evaluate possible environmental responses under the present climatic fluctuations in a densely populated area. Several contributions have demonstrated the environmental sensitivity of the region during Quaternary time as documented by the record of Pleistocene and Holocene glacial advances in the Andean headwaters of the fluvial systems (e.g. Espizúa 2004, 2005; Espizúa & Pitte 2009; Messager 2010) along with geomorphological, palaeoenvironmental and palaeoclimatic studies (Baker et al. 2009; Paez et al. 2010). In order to understand the nature and characteristics of the present landscape, analysis of the Late Pleistocene and Holocene period is especially important. This key time interval covering the recent geological past includes a dramatic climatic change: the transition of the last glacial cycle to the present interglacial (Saltzman 2002). In addition, the Cordillera Frontal piedmont is considered as one of the source areas of the aeolian deposits of central Argentina (Zárate 2003; Mehl et al. 2012). Knowledge of the sedimentary record is therefore significant to validate the current models of aeolian sedimentation. These issues have renewed interest in the area and instigated multidisciplinary analysis by our research team. The studies, still under progress, include stratigraphical, sedimentological, geochronogical, morphostructural and palaeontological analysis, with the general aim of reconstructing the environmental and climatic conditions during Late Quaternary time across the Cordillera Frontal piedmont (e.g. Mehl & Zárate 2012; Rojo et al. 2012) and the eastern piedmont of San Rafael block, situated to the south (Tripaldi et al. 2011). Simultaneously, other authors (e.g. Pepin 2010; Pepin et al. 2013; Casa et al. 2011) have focused on tectonic, geomorphological and geochronological analyses in the study area (e.g. Cordón del Carrizalito piedmont, Las Tunas fluvial system). The purpose of this paper is to provide a general overview of the Quaternary stratigraphy and evolution of the Cordillera Frontal piedmont at Valle de Uco. Special emphasis is placed on Late Pleistocene and Holocene alluvial sequences that exhibit a suitable stratigraphic resolution for palaeoenvironmental reconstructions. The chronology and morphotectonic of the area are also analysed, along with the composition and provenance of the sediments. The final aim is to contribute to the understanding of the landscape dynamics in an active tectonic setting within the context of the Quaternary climate cycles.
publishDate 2014
dc.date.none.fl_str_mv 2014-02
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/11336/19364
Zárate, Marcelo Arístides; Mehl, Adriana Ester; Perucca, Laura Patricia A.; Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina; Geological Society of America; Geological Society of London Special Publication; 399; 2-2014; 293-310
0305-8719
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19364
identifier_str_mv Zárate, Marcelo Arístides; Mehl, Adriana Ester; Perucca, Laura Patricia A.; Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina; Geological Society of America; Geological Society of London Special Publication; 399; 2-2014; 293-310
0305-8719
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://sp.lyellcollection.org/content/399/1/293
info:eu-repo/semantics/altIdentifier/doi/10.1144/SP399.8
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
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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_ 1799195219446464512
spelling Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, ArgentinaZárate, Marcelo ArístidesMehl, Adriana EsterPerucca, Laura Patricia A.SedimentologiaGeomorfologiaCuaternarioPiedemonte Cordillera Frontalhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The piedmont of Cordillera Frontal between c. 33° and 34°S (Mendoza, Argentina) is a highly populated area deeply modified by human activities, known as Valle de Uco. It is situated within the borderland region of the geological provinces of Cordillera Frontal and Cuyo basin. The landscape is dominantly composed of both erosional and depositional landforms made of fluvio-aeolian deposits fractured and folded by tectonic processes together with some landforms of volcanic origin. Alluvial fans, related to several aggradational cycles of Quaternary age, are the most remarkable geomorphological units. Several tectonic features are present giving rise to conspicuous morphological features. Some of the streams are structurally controlled by faults while several drainage anomalies that indicate active tectonic processes have been identified. The Late Quaternary alluvial sequences, dominantly comprising sandy and silty deposits of volcaniclastic composition and secondarily metamorphic rocks, represent the fine-grained sedimentary facies of the fluvial systems accumulated in a distal fan environment. The alluvial deposits have been incised by several episodes of erosion since Pleistocene time. The Andes Cordillera and the piedmont of Mendoza province (Argentina) are an active tectonic area characterized by a complex geological setting that determines a heterogeneous landscape. Of particular environmental and human significance is the piedmont of Cordillera Frontal between c. 33° and 34°S. Known as Valle de Uco, it is a highly populated area deeply modified by human activities and constitutes one of the three man-made agricultural oases of Mendoza province (Fig. 1). Consequently, the reconstruction of the piedmont evolution and the understanding of the processes involved are essential to evaluate possible environmental responses under the present climatic fluctuations in a densely populated area. Several contributions have demonstrated the environmental sensitivity of the region during Quaternary time as documented by the record of Pleistocene and Holocene glacial advances in the Andean headwaters of the fluvial systems (e.g. Espizúa 2004, 2005; Espizúa & Pitte 2009; Messager 2010) along with geomorphological, palaeoenvironmental and palaeoclimatic studies (Baker et al. 2009; Paez et al. 2010). In order to understand the nature and characteristics of the present landscape, analysis of the Late Pleistocene and Holocene period is especially important. This key time interval covering the recent geological past includes a dramatic climatic change: the transition of the last glacial cycle to the present interglacial (Saltzman 2002). In addition, the Cordillera Frontal piedmont is considered as one of the source areas of the aeolian deposits of central Argentina (Zárate 2003; Mehl et al. 2012). Knowledge of the sedimentary record is therefore significant to validate the current models of aeolian sedimentation. These issues have renewed interest in the area and instigated multidisciplinary analysis by our research team. The studies, still under progress, include stratigraphical, sedimentological, geochronogical, morphostructural and palaeontological analysis, with the general aim of reconstructing the environmental and climatic conditions during Late Quaternary time across the Cordillera Frontal piedmont (e.g. Mehl & Zárate 2012; Rojo et al. 2012) and the eastern piedmont of San Rafael block, situated to the south (Tripaldi et al. 2011). Simultaneously, other authors (e.g. Pepin 2010; Pepin et al. 2013; Casa et al. 2011) have focused on tectonic, geomorphological and geochronological analyses in the study area (e.g. Cordón del Carrizalito piedmont, Las Tunas fluvial system). The purpose of this paper is to provide a general overview of the Quaternary stratigraphy and evolution of the Cordillera Frontal piedmont at Valle de Uco. Special emphasis is placed on Late Pleistocene and Holocene alluvial sequences that exhibit a suitable stratigraphic resolution for palaeoenvironmental reconstructions. The chronology and morphotectonic of the area are also analysed, along with the composition and provenance of the sediments. The final aim is to contribute to the understanding of the landscape dynamics in an active tectonic setting within the context of the Quaternary climate cycles.Fil: Zárate, Marcelo Arístides. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaFil: Mehl, Adriana Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaFil: Perucca, Laura Patricia A.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina. Universidad Nacional de San Juan. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Geología "Dr. Emiliano Aparicio". Gabinete de Neotectónica y Geomorfología; ArgentinaGeological Society of America2014-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19364Zárate, Marcelo Arístides; Mehl, Adriana Ester; Perucca, Laura Patricia A.; Quaternary evolution of the Cordillera Frontal piedmont between c. 33° and 34°S Mendoza, Argentina; Geological Society of America; Geological Society of London Special Publication; 399; 2-2014; 293-3100305-8719CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://sp.lyellcollection.org/content/399/1/293info:eu-repo/semantics/altIdentifier/doi/10.1144/SP399.8info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:46:28Zoai:ri.conicet.gov.ar:11336/19364instacron: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:34982024-05-08 13:46:29.192CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
score 15,811543

Similares en LA Referencia