The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina
- Autores
- Alvarellos, Victoria; Costa, Carlos H.; Sagripanti, Lucía; Richard, Andrés David; Jagoe, Lucía; Morales Volosin, María Soledad; Folguera, Adrés
- Año de publicación
- 2025
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- At the southern Pampean flat-slab of the Central Andes, Quaternary-active deformation is concentrated at the easternmost thrusts of the Southern Precordillera along the Las Higueras-Las Peñas range (32° 10′-32° 45′S). This range is bounded by the Las Peñas Thrust System (LPTS), which emplaces Cenozoic sedimentary rocks over a suite of Quaternary alluvial deposits undervariable shortening rates. This study focuses on the southern part of this range (La Escondida Creek). Here, the east-verging Quaternary-active thrust front has been shifting toward the piedmont area since Pliocene-Pleistocene times, through discrete splays that bound four different morphotectonic domains. To unravel the shortening related to these propagating thrust splays,we applied trishear forward modeling and retrodeformation of geometric markers such as folded and faulted stratigraphic layers and well-preserved alluvial surfaces, supported by detailed topographic surveys. We compare shortening estimations derived from trishear forward models of deformed layers in a propagating thrust exposure with the data obtained from modeling theresulting thrust scarp morphology on an alluvial surface. Shortening rate assessments for the most recent footwall-propagating thrust yielded scattered values; however, the most reliable estimate is likely below 1 mm/a for this Quaternary frontal thrust.
Fil: Alvarellos, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Costa, Carlos H.. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina
Fil: Sagripanti, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina
Fil: Jagoe, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Morales Volosin, María Soledad. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
Fil: Folguera, Adrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina - Materia
-
Thishear
Quaternary active deformation
Las Higueras - las Peñas range
alluvial deposits - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/272498
Ver los metadatos del registro completo
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The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), ArgentinaAlvarellos, VictoriaCosta, Carlos H.Sagripanti, LucíaRichard, Andrés DavidJagoe, LucíaMorales Volosin, María SoledadFolguera, AdrésThishearQuaternary active deformationLas Higueras - las Peñas rangealluvial depositshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1At the southern Pampean flat-slab of the Central Andes, Quaternary-active deformation is concentrated at the easternmost thrusts of the Southern Precordillera along the Las Higueras-Las Peñas range (32° 10′-32° 45′S). This range is bounded by the Las Peñas Thrust System (LPTS), which emplaces Cenozoic sedimentary rocks over a suite of Quaternary alluvial deposits undervariable shortening rates. This study focuses on the southern part of this range (La Escondida Creek). Here, the east-verging Quaternary-active thrust front has been shifting toward the piedmont area since Pliocene-Pleistocene times, through discrete splays that bound four different morphotectonic domains. To unravel the shortening related to these propagating thrust splays,we applied trishear forward modeling and retrodeformation of geometric markers such as folded and faulted stratigraphic layers and well-preserved alluvial surfaces, supported by detailed topographic surveys. We compare shortening estimations derived from trishear forward models of deformed layers in a propagating thrust exposure with the data obtained from modeling theresulting thrust scarp morphology on an alluvial surface. Shortening rate assessments for the most recent footwall-propagating thrust yielded scattered values; however, the most reliable estimate is likely below 1 mm/a for this Quaternary frontal thrust.Fil: Alvarellos, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Costa, Carlos H.. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; ArgentinaFil: Sagripanti, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; ArgentinaFil: Jagoe, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Morales Volosin, María Soledad. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; ArgentinaFil: Folguera, Adrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaGeoScienceWorld2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/272498Alvarellos, Victoria; Costa, Carlos H.; Sagripanti, Lucía; Richard, Andrés David; Jagoe, Lucía; et al.; The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina; GeoScienceWorld; Lithosphere; 2024; Special 15; 6-2025; 1-191941-82641947-4253CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/lithosphere/article/2024/Special%2015/lithosphere_2024_185/654984/The-Andean-Thrust-Front-Migration-and-Relatedinfo:eu-repo/semantics/altIdentifier/doi/10.2113/2024/lithosphere_2024_185info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-08-25T14:56:22Zoai:ri.conicet.gov.ar:11336/272498instacron: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:34982026-08-25 14:56:22.799CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| title |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| spellingShingle |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina Alvarellos, Victoria Thishear Quaternary active deformation Las Higueras - las Peñas range alluvial deposits |
| title_short |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| title_full |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| title_fullStr |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| title_full_unstemmed |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| title_sort |
The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina |
| dc.creator.none.fl_str_mv |
Alvarellos, Victoria Costa, Carlos H. Sagripanti, Lucía Richard, Andrés David Jagoe, Lucía Morales Volosin, María Soledad Folguera, Adrés |
| author |
Alvarellos, Victoria |
| author_facet |
Alvarellos, Victoria Costa, Carlos H. Sagripanti, Lucía Richard, Andrés David Jagoe, Lucía Morales Volosin, María Soledad Folguera, Adrés |
| author_role |
author |
| author2 |
Costa, Carlos H. Sagripanti, Lucía Richard, Andrés David Jagoe, Lucía Morales Volosin, María Soledad Folguera, Adrés |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Thishear Quaternary active deformation Las Higueras - las Peñas range alluvial deposits |
| topic |
Thishear Quaternary active deformation Las Higueras - las Peñas range alluvial deposits |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
At the southern Pampean flat-slab of the Central Andes, Quaternary-active deformation is concentrated at the easternmost thrusts of the Southern Precordillera along the Las Higueras-Las Peñas range (32° 10′-32° 45′S). This range is bounded by the Las Peñas Thrust System (LPTS), which emplaces Cenozoic sedimentary rocks over a suite of Quaternary alluvial deposits undervariable shortening rates. This study focuses on the southern part of this range (La Escondida Creek). Here, the east-verging Quaternary-active thrust front has been shifting toward the piedmont area since Pliocene-Pleistocene times, through discrete splays that bound four different morphotectonic domains. To unravel the shortening related to these propagating thrust splays,we applied trishear forward modeling and retrodeformation of geometric markers such as folded and faulted stratigraphic layers and well-preserved alluvial surfaces, supported by detailed topographic surveys. We compare shortening estimations derived from trishear forward models of deformed layers in a propagating thrust exposure with the data obtained from modeling theresulting thrust scarp morphology on an alluvial surface. Shortening rate assessments for the most recent footwall-propagating thrust yielded scattered values; however, the most reliable estimate is likely below 1 mm/a for this Quaternary frontal thrust. Fil: Alvarellos, Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Costa, Carlos H.. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina Fil: Sagripanti, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Richard, Andrés David. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Departamento de Geología; Argentina Fil: Jagoe, Lucía. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina Fil: Morales Volosin, María Soledad. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina Fil: Folguera, Adrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina |
| description |
At the southern Pampean flat-slab of the Central Andes, Quaternary-active deformation is concentrated at the easternmost thrusts of the Southern Precordillera along the Las Higueras-Las Peñas range (32° 10′-32° 45′S). This range is bounded by the Las Peñas Thrust System (LPTS), which emplaces Cenozoic sedimentary rocks over a suite of Quaternary alluvial deposits undervariable shortening rates. This study focuses on the southern part of this range (La Escondida Creek). Here, the east-verging Quaternary-active thrust front has been shifting toward the piedmont area since Pliocene-Pleistocene times, through discrete splays that bound four different morphotectonic domains. To unravel the shortening related to these propagating thrust splays,we applied trishear forward modeling and retrodeformation of geometric markers such as folded and faulted stratigraphic layers and well-preserved alluvial surfaces, supported by detailed topographic surveys. We compare shortening estimations derived from trishear forward models of deformed layers in a propagating thrust exposure with the data obtained from modeling theresulting thrust scarp morphology on an alluvial surface. Shortening rate assessments for the most recent footwall-propagating thrust yielded scattered values; however, the most reliable estimate is likely below 1 mm/a for this Quaternary frontal thrust. |
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2025 |
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2025-06 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/272498 Alvarellos, Victoria; Costa, Carlos H.; Sagripanti, Lucía; Richard, Andrés David; Jagoe, Lucía; et al.; The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina; GeoScienceWorld; Lithosphere; 2024; Special 15; 6-2025; 1-19 1941-8264 1947-4253 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/272498 |
| identifier_str_mv |
Alvarellos, Victoria; Costa, Carlos H.; Sagripanti, Lucía; Richard, Andrés David; Jagoe, Lucía; et al.; The Andean Thrust Front Migration and Related Shortening Rates during the Late Pleistocene-Holocene (32° 30′S), Argentina; GeoScienceWorld; Lithosphere; 2024; Special 15; 6-2025; 1-19 1941-8264 1947-4253 CONICET Digital CONICET |
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eng |
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eng |
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