New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina

Autores
Colombo, Ferrán; Limarino, Carlos Oscar; Spalletti, Luis Antonio; Gallastegui, Gloria; Rubio Ordoñez, A.; Cuesta, A.; Busquest, P.; Cardó, R.; Cesari, Silvia Nelida; Méndez Bedia, I.; Heredia, N.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Late Palaeozoic formations in the western Precorclillera (km 114 of the N-20 road) were revisitcd (Colombo el aL, in press). The lower mcmber of the Del Ratón Fm overlies the Devonian basemen t with marked angular unconformity (O1 ) and is interpreted as a uord deposit. It consists of conglomerares with igneous clasts, in which Gallastegui el aL (in press) obtained an early Carboniferous 0ate Tournaisian) U-Pb zi rcon age of 348±2 Ma. The u pper member covcrs another smooth unconformity (D2), ancl is interpreted as the deposi t of an alluvial fan system which evolved into a coastal fan del ta. A sharp rise in relative sealevel resulted in thc dcep-sea fan Ca rboniferous deposits of the El Planchón Fm at the end of Chanic orogen y. During the rest of the Carboniferous, these succcssions were incorporated into the proto­ Precordillera high, a remnant of the Chanic cordillera, ancl a new (03) angular unconformity is recorded between Carboniferous ancl Permian dcposi ts. The early Permjan (Asselian) Del Salto Fm, which accumuJated after the collapse of thc proto-PrecordiUera (Gondwanan orogeny), is essen tially composed of sandstone and shalc i nterpreted as coastal and shallo´w marine deposi ts. A new tectonic event is recorded at the top of the Del Salto Fm (04 unconformity), and thc coarse-grained alluvial deposits of the Quebrada del Alumbre Fm accumulatcd d u ri ng the carly Permian according toa new U-Pb zi rcon age of 293±5 Ma (data) from a pyrodastic fall dcposit. Subsequently, a new expansive coastal systcm (Escom brera Fm) was deposi ted over a smoot h u nconformity (05).Barredo el al. (201 2) published a middle Permian U-Pb zircon age of 267±7 Ma from an andesite located within this unit. The Quebrada de la Arena Fm rcsts on anotht´r smooth unconformity (06).This unit consists of siliciclastic deposits accum ulated in continen tal environments (playa-lake, high-si nuosi ty and braided fluvial systems, and alluvial fans). In the lower part of the Quebrada de la Arena Fm, a new mjddle Triassic (Ladinian) age of 2 R±2 Ma (U-Pb zircon) is obtained from a pyroclastic fall dt´posit. Thus, the D6 unconfor mity recorcls the limit between the Permian and the Triassic deposits. The Rincón Blanco Group ("sensu lato"), which líes on an angular unconformity (07), was deposited during the Middle-Late Triassic and displays another angular unconfor mi ty (08) in its lmver part.
Fil: Colombo, Ferrán. Universidad de Barcelona; España
Fil: Limarino, Carlos Oscar. 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: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Gallastegui, Gloria. Instituto Geológico y Minero de España; España
Fil: Rubio Ordoñez, A.. Universidad de Oviedo; España
Fil: Cuesta, A.. Universidad de Oviedo; España
Fil: Busquest, P.. Universidad de Barcelona; España
Fil: Cardó, R.. Universidad Nacional de San Juan; Argentina
Fil: Cesari, Silvia Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Méndez Bedia, I.. Universidad de Oviedo; España
Fil: Heredia, N.. Instituto Geológico y Minero de España; España
Gondwana 15 North meets South
Madrid
España
Universidad Complutense de Madrid
Materia
Late Paleozoic
Precordillera
Andes
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/234169
Acceder
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network_name_str CONICET Digital (CONICET)
spelling New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, ArgentinaColombo, FerránLimarino, Carlos OscarSpalletti, Luis AntonioGallastegui, GloriaRubio Ordoñez, A.Cuesta, A.Busquest, P.Cardó, R.Cesari, Silvia NelidaMéndez Bedia, I.Heredia, N.Late PaleozoicPrecordilleraAndesArgentinahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Late Palaeozoic formations in the western Precorclillera (km 114 of the N-20 road) were revisitcd (Colombo el aL, in press). The lower mcmber of the Del Ratón Fm overlies the Devonian basemen t with marked angular unconformity (O1 ) and is interpreted as a uord deposit. It consists of conglomerares with igneous clasts, in which Gallastegui el aL (in press) obtained an early Carboniferous 0ate Tournaisian) U-Pb zi rcon age of 348±2 Ma. The u pper member covcrs another smooth unconformity (D2), ancl is interpreted as the deposi t of an alluvial fan system which evolved into a coastal fan del ta. A sharp rise in relative sealevel resulted in thc dcep-sea fan Ca rboniferous deposits of the El Planchón Fm at the end of Chanic orogen y. During the rest of the Carboniferous, these succcssions were incorporated into the proto­ Precordillera high, a remnant of the Chanic cordillera, ancl a new (03) angular unconformity is recorded between Carboniferous ancl Permian dcposi ts. The early Permjan (Asselian) Del Salto Fm, which accumuJated after the collapse of thc proto-PrecordiUera (Gondwanan orogeny), is essen tially composed of sandstone and shalc i nterpreted as coastal and shallo´w marine deposi ts. A new tectonic event is recorded at the top of the Del Salto Fm (04 unconformity), and thc coarse-grained alluvial deposits of the Quebrada del Alumbre Fm accumulatcd d u ri ng the carly Permian according toa new U-Pb zi rcon age of 293±5 Ma (data) from a pyrodastic fall dcposit. Subsequently, a new expansive coastal systcm (Escom brera Fm) was deposi ted over a smoot h u nconformity (05).Barredo el al. (201 2) published a middle Permian U-Pb zircon age of 267±7 Ma from an andesite located within this unit. The Quebrada de la Arena Fm rcsts on anotht´r smooth unconformity (06).This unit consists of siliciclastic deposits accum ulated in continen tal environments (playa-lake, high-si nuosi ty and braided fluvial systems, and alluvial fans). In the lower part of the Quebrada de la Arena Fm, a new mjddle Triassic (Ladinian) age of 2 R±2 Ma (U-Pb zircon) is obtained from a pyroclastic fall dt´posit. Thus, the D6 unconfor mity recorcls the limit between the Permian and the Triassic deposits. The Rincón Blanco Group ("sensu lato"), which líes on an angular unconformity (07), was deposited during the Middle-Late Triassic and displays another angular unconfor mi ty (08) in its lmver part.Fil: Colombo, Ferrán. Universidad de Barcelona; EspañaFil: Limarino, Carlos Oscar. 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: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Gallastegui, Gloria. Instituto Geológico y Minero de España; EspañaFil: Rubio Ordoñez, A.. Universidad de Oviedo; EspañaFil: Cuesta, A.. Universidad de Oviedo; EspañaFil: Busquest, P.. Universidad de Barcelona; EspañaFil: Cardó, R.. Universidad Nacional de San Juan; ArgentinaFil: Cesari, Silvia Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Méndez Bedia, I.. Universidad de Oviedo; EspañaFil: Heredia, N.. Instituto Geológico y Minero de España; EspañaGondwana 15 North meets SouthMadridEspañaUniversidad Complutense de MadridUniversidad Complutense de MadridCasquet, CésarGutierrez Marco, Juan CarlosFernández Suarez, Javier2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/234169New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina; Gondwana 15 North meets South; Madrid; España; 2014; 40-40CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://docta.ucm.es/entities/publication/5f37c92c-15cd-4f60-8489-b733d815322fInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:23:59Zoai:ri.conicet.gov.ar:11336/234169instacron: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:34982025-09-10 13:23:59.871CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
title New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
spellingShingle New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
Colombo, Ferrán
Late Paleozoic
Precordillera
Andes
Argentina
title_short New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
title_full New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
title_fullStr New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
title_full_unstemmed New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
title_sort New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina
dc.creator.none.fl_str_mv Colombo, Ferrán
Limarino, Carlos Oscar
Spalletti, Luis Antonio
Gallastegui, Gloria
Rubio Ordoñez, A.
Cuesta, A.
Busquest, P.
Cardó, R.
Cesari, Silvia Nelida
Méndez Bedia, I.
Heredia, N.
author Colombo, Ferrán
author_facet Colombo, Ferrán
Limarino, Carlos Oscar
Spalletti, Luis Antonio
Gallastegui, Gloria
Rubio Ordoñez, A.
Cuesta, A.
Busquest, P.
Cardó, R.
Cesari, Silvia Nelida
Méndez Bedia, I.
Heredia, N.
author_role author
author2 Limarino, Carlos Oscar
Spalletti, Luis Antonio
Gallastegui, Gloria
Rubio Ordoñez, A.
Cuesta, A.
Busquest, P.
Cardó, R.
Cesari, Silvia Nelida
Méndez Bedia, I.
Heredia, N.
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Casquet, César
Gutierrez Marco, Juan Carlos
Fernández Suarez, Javier
dc.subject.none.fl_str_mv Late Paleozoic
Precordillera
Andes
Argentina
topic Late Paleozoic
Precordillera
Andes
Argentina
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Late Palaeozoic formations in the western Precorclillera (km 114 of the N-20 road) were revisitcd (Colombo el aL, in press). The lower mcmber of the Del Ratón Fm overlies the Devonian basemen t with marked angular unconformity (O1 ) and is interpreted as a uord deposit. It consists of conglomerares with igneous clasts, in which Gallastegui el aL (in press) obtained an early Carboniferous 0ate Tournaisian) U-Pb zi rcon age of 348±2 Ma. The u pper member covcrs another smooth unconformity (D2), ancl is interpreted as the deposi t of an alluvial fan system which evolved into a coastal fan del ta. A sharp rise in relative sealevel resulted in thc dcep-sea fan Ca rboniferous deposits of the El Planchón Fm at the end of Chanic orogen y. During the rest of the Carboniferous, these succcssions were incorporated into the proto­ Precordillera high, a remnant of the Chanic cordillera, ancl a new (03) angular unconformity is recorded between Carboniferous ancl Permian dcposi ts. The early Permjan (Asselian) Del Salto Fm, which accumuJated after the collapse of thc proto-PrecordiUera (Gondwanan orogeny), is essen tially composed of sandstone and shalc i nterpreted as coastal and shallo´w marine deposi ts. A new tectonic event is recorded at the top of the Del Salto Fm (04 unconformity), and thc coarse-grained alluvial deposits of the Quebrada del Alumbre Fm accumulatcd d u ri ng the carly Permian according toa new U-Pb zi rcon age of 293±5 Ma (data) from a pyrodastic fall dcposit. Subsequently, a new expansive coastal systcm (Escom brera Fm) was deposi ted over a smoot h u nconformity (05).Barredo el al. (201 2) published a middle Permian U-Pb zircon age of 267±7 Ma from an andesite located within this unit. The Quebrada de la Arena Fm rcsts on anotht´r smooth unconformity (06).This unit consists of siliciclastic deposits accum ulated in continen tal environments (playa-lake, high-si nuosi ty and braided fluvial systems, and alluvial fans). In the lower part of the Quebrada de la Arena Fm, a new mjddle Triassic (Ladinian) age of 2 R±2 Ma (U-Pb zircon) is obtained from a pyroclastic fall dt´posit. Thus, the D6 unconfor mity recorcls the limit between the Permian and the Triassic deposits. The Rincón Blanco Group ("sensu lato"), which líes on an angular unconformity (07), was deposited during the Middle-Late Triassic and displays another angular unconfor mi ty (08) in its lmver part.
Fil: Colombo, Ferrán. Universidad de Barcelona; España
Fil: Limarino, Carlos Oscar. 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: Spalletti, Luis Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Gallastegui, Gloria. Instituto Geológico y Minero de España; España
Fil: Rubio Ordoñez, A.. Universidad de Oviedo; España
Fil: Cuesta, A.. Universidad de Oviedo; España
Fil: Busquest, P.. Universidad de Barcelona; España
Fil: Cardó, R.. Universidad Nacional de San Juan; Argentina
Fil: Cesari, Silvia Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Méndez Bedia, I.. Universidad de Oviedo; España
Fil: Heredia, N.. Instituto Geológico y Minero de España; España
Gondwana 15 North meets South
Madrid
España
Universidad Complutense de Madrid
description Late Palaeozoic formations in the western Precorclillera (km 114 of the N-20 road) were revisitcd (Colombo el aL, in press). The lower mcmber of the Del Ratón Fm overlies the Devonian basemen t with marked angular unconformity (O1 ) and is interpreted as a uord deposit. It consists of conglomerares with igneous clasts, in which Gallastegui el aL (in press) obtained an early Carboniferous 0ate Tournaisian) U-Pb zi rcon age of 348±2 Ma. The u pper member covcrs another smooth unconformity (D2), ancl is interpreted as the deposi t of an alluvial fan system which evolved into a coastal fan del ta. A sharp rise in relative sealevel resulted in thc dcep-sea fan Ca rboniferous deposits of the El Planchón Fm at the end of Chanic orogen y. During the rest of the Carboniferous, these succcssions were incorporated into the proto­ Precordillera high, a remnant of the Chanic cordillera, ancl a new (03) angular unconformity is recorded between Carboniferous ancl Permian dcposi ts. The early Permjan (Asselian) Del Salto Fm, which accumuJated after the collapse of thc proto-PrecordiUera (Gondwanan orogeny), is essen tially composed of sandstone and shalc i nterpreted as coastal and shallo´w marine deposi ts. A new tectonic event is recorded at the top of the Del Salto Fm (04 unconformity), and thc coarse-grained alluvial deposits of the Quebrada del Alumbre Fm accumulatcd d u ri ng the carly Permian according toa new U-Pb zi rcon age of 293±5 Ma (data) from a pyrodastic fall dcposit. Subsequently, a new expansive coastal systcm (Escom brera Fm) was deposi ted over a smoot h u nconformity (05).Barredo el al. (201 2) published a middle Permian U-Pb zircon age of 267±7 Ma from an andesite located within this unit. The Quebrada de la Arena Fm rcsts on anotht´r smooth unconformity (06).This unit consists of siliciclastic deposits accum ulated in continen tal environments (playa-lake, high-si nuosi ty and braided fluvial systems, and alluvial fans). In the lower part of the Quebrada de la Arena Fm, a new mjddle Triassic (Ladinian) age of 2 R±2 Ma (U-Pb zircon) is obtained from a pyroclastic fall dt´posit. Thus, the D6 unconfor mity recorcls the limit between the Permian and the Triassic deposits. The Rincón Blanco Group ("sensu lato"), which líes on an angular unconformity (07), was deposited during the Middle-Late Triassic and displays another angular unconfor mi ty (08) in its lmver part.
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/234169
New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina; Gondwana 15 North meets South; Madrid; España; 2014; 40-40
CONICET Digital
CONICET
url http://hdl.handle.net/11336/234169
identifier_str_mv New geochronological data and evolution of the Late Paleozoic formations in the western Andean Precordillera, San Juan, Argentina; Gondwana 15 North meets South; Madrid; España; 2014; 40-40
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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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
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application/pdf
application/pdf
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dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Universidad Complutense de Madrid
publisher.none.fl_str_mv Universidad Complutense de Madrid
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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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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