Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina

Autores
Perucca, Laura Patricia A.; Rothis, Luis Martin; Vargas, Horacio N.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The drainage pattern on the western piedmont of the Sierra de La Cantera is divergent, typical of alluvial fans and showing anomalies that are directly related to the trace of La Cantera thrust. In previous studies, two types of anomalies were identified: upstream of the fault scarp, rivers have a broom-shaped pattern, while downstream – in the hanging block – streams become denser, more sinuous and incised. In this contribution, these morphotectonic aspects were analyzed in detail, making direct and indirect analysis to quantify the relationship between these anomalies and the faults affecting alluvial fans. In addition, the influence of neotectonic activity on smaller water course patterns in the alluvial fan areas was investigated in order to find indicators of on-going vertical movements, since the spatial arrangements of these piedmont channels are determined by slope and structure, where active faults cause diversions or anomalies. Topographic profiles in two selected channels cutting across the trace of the fault were performed using a differential GPS in order to establish the relationship between the sinuosity and slope of these rivers. The results obtained allow us to state that the most sinuous channels have lower slopes and are located in the hanging wall of the fault. Morphometric analysis of scarps stated that active tectonics have played an essential role in controlling the drainage pattern in the piedmont, leading the rivers to adjust to these slope variations.
Fil: Perucca, Laura Patricia A.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rothis, Luis Martin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia de San Juan. Ministerio de Planificacion Federal, Inversion Publica y Servicios. Secretaria de Obras Publicas. Instituto Nacional de Prevencion Sismica; Argentina
Fil: Vargas, Horacio N.. CHISÑANCO SRL.; Argentina
Materia
Neotectonics
La Cantera thrust
River pattern anomalies
Precordillera
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:11336/5277
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, ArgentinaPerucca, Laura Patricia A.Rothis, Luis MartinVargas, Horacio N.NeotectonicsLa Cantera thrustRiver pattern anomaliesPrecordillerahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The drainage pattern on the western piedmont of the Sierra de La Cantera is divergent, typical of alluvial fans and showing anomalies that are directly related to the trace of La Cantera thrust. In previous studies, two types of anomalies were identified: upstream of the fault scarp, rivers have a broom-shaped pattern, while downstream – in the hanging block – streams become denser, more sinuous and incised. In this contribution, these morphotectonic aspects were analyzed in detail, making direct and indirect analysis to quantify the relationship between these anomalies and the faults affecting alluvial fans. In addition, the influence of neotectonic activity on smaller water course patterns in the alluvial fan areas was investigated in order to find indicators of on-going vertical movements, since the spatial arrangements of these piedmont channels are determined by slope and structure, where active faults cause diversions or anomalies. Topographic profiles in two selected channels cutting across the trace of the fault were performed using a differential GPS in order to establish the relationship between the sinuosity and slope of these rivers. The results obtained allow us to state that the most sinuous channels have lower slopes and are located in the hanging wall of the fault. Morphometric analysis of scarps stated that active tectonics have played an essential role in controlling the drainage pattern in the piedmont, leading the rivers to adjust to these slope variations.Fil: Perucca, Laura Patricia A.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rothis, Luis Martin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia de San Juan. Ministerio de Planificacion Federal, Inversion Publica y Servicios. Secretaria de Obras Publicas. Instituto Nacional de Prevencion Sismica; ArgentinaFil: Vargas, Horacio N.. CHISÑANCO SRL.; ArgentinaElsevier2013-09info: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/11336/5277Perucca, Laura Patricia A.; Rothis, Luis Martin; Vargas, Horacio N.; Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina; Elsevier; Geomorphology; 204; 9-2013; 673–6820169-555Xenginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169555X13004728info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2013.09.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:45Zoai:ri.conicet.gov.ar:11336/5277instacron: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 10:01:45.326CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
title Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
spellingShingle Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
Perucca, Laura Patricia A.
Neotectonics
La Cantera thrust
River pattern anomalies
Precordillera
title_short Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
title_full Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
title_fullStr Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
title_full_unstemmed Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
title_sort Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina
dc.creator.none.fl_str_mv Perucca, Laura Patricia A.
Rothis, Luis Martin
Vargas, Horacio N.
author Perucca, Laura Patricia A.
author_facet Perucca, Laura Patricia A.
Rothis, Luis Martin
Vargas, Horacio N.
author_role author
author2 Rothis, Luis Martin
Vargas, Horacio N.
author2_role author
author
dc.subject.none.fl_str_mv Neotectonics
La Cantera thrust
River pattern anomalies
Precordillera
topic Neotectonics
La Cantera thrust
River pattern anomalies
Precordillera
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 drainage pattern on the western piedmont of the Sierra de La Cantera is divergent, typical of alluvial fans and showing anomalies that are directly related to the trace of La Cantera thrust. In previous studies, two types of anomalies were identified: upstream of the fault scarp, rivers have a broom-shaped pattern, while downstream – in the hanging block – streams become denser, more sinuous and incised. In this contribution, these morphotectonic aspects were analyzed in detail, making direct and indirect analysis to quantify the relationship between these anomalies and the faults affecting alluvial fans. In addition, the influence of neotectonic activity on smaller water course patterns in the alluvial fan areas was investigated in order to find indicators of on-going vertical movements, since the spatial arrangements of these piedmont channels are determined by slope and structure, where active faults cause diversions or anomalies. Topographic profiles in two selected channels cutting across the trace of the fault were performed using a differential GPS in order to establish the relationship between the sinuosity and slope of these rivers. The results obtained allow us to state that the most sinuous channels have lower slopes and are located in the hanging wall of the fault. Morphometric analysis of scarps stated that active tectonics have played an essential role in controlling the drainage pattern in the piedmont, leading the rivers to adjust to these slope variations.
Fil: Perucca, Laura Patricia A.. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rothis, Luis Martin. Universidad Nacional de San Juan. Facultad de Ciencias Exactas Fisicas y Naturales. Instituto de Geologia "Dr. Emiliano Aparicio". Gabinete de Neotectonica y Geomorfologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Provincia de San Juan. Ministerio de Planificacion Federal, Inversion Publica y Servicios. Secretaria de Obras Publicas. Instituto Nacional de Prevencion Sismica; Argentina
Fil: Vargas, Horacio N.. CHISÑANCO SRL.; Argentina
description The drainage pattern on the western piedmont of the Sierra de La Cantera is divergent, typical of alluvial fans and showing anomalies that are directly related to the trace of La Cantera thrust. In previous studies, two types of anomalies were identified: upstream of the fault scarp, rivers have a broom-shaped pattern, while downstream – in the hanging block – streams become denser, more sinuous and incised. In this contribution, these morphotectonic aspects were analyzed in detail, making direct and indirect analysis to quantify the relationship between these anomalies and the faults affecting alluvial fans. In addition, the influence of neotectonic activity on smaller water course patterns in the alluvial fan areas was investigated in order to find indicators of on-going vertical movements, since the spatial arrangements of these piedmont channels are determined by slope and structure, where active faults cause diversions or anomalies. Topographic profiles in two selected channels cutting across the trace of the fault were performed using a differential GPS in order to establish the relationship between the sinuosity and slope of these rivers. The results obtained allow us to state that the most sinuous channels have lower slopes and are located in the hanging wall of the fault. Morphometric analysis of scarps stated that active tectonics have played an essential role in controlling the drainage pattern in the piedmont, leading the rivers to adjust to these slope variations.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
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/11336/5277
Perucca, Laura Patricia A.; Rothis, Luis Martin; Vargas, Horacio N.; Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina; Elsevier; Geomorphology; 204; 9-2013; 673–682
0169-555X
url http://hdl.handle.net/11336/5277
identifier_str_mv Perucca, Laura Patricia A.; Rothis, Luis Martin; Vargas, Horacio N.; Morphotectonic and neotectonic control on river pattern in the Sierra de la Cantera piedmont, Central Precordillera, province of San Juan, Argentina; Elsevier; Geomorphology; 204; 9-2013; 673–682
0169-555X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0169555X13004728
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2013.09.014
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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