A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin

The Western Sierras Pampeanas (WSP) of Argentina record a protracted geological history from the Mesoproterozoic assembly of the Rodinia supercontinent to the early Paleozoic tectonic evolution of SW Gondwana. Two well-known orogenies took place at the proto-Andean margin of Gondwana in the Cambrian...

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Autores: Ramacciotti, Carlos Dino, Casquet, César, Baldo, Edgardo Gaspar Agustín, Galindo Francisco, Carmen, Pankhurst, Robert, Verdecchia, Sebastián Osvaldo, Rapela, Carlos Washington, Fanning, Christopher Mark
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/88855
Acceso en línea:http://hdl.handle.net/11336/88855
Access Level:acceso abierto
Palabra clave:Cambrian clastic metasedimentary rocks
SW Gondwana paleogeography
Sierras Pampeanas
Precordillera/Cuyania terrane
SW Gondwana Cambrian platform
Sr-isotope dating of marbles
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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oai_identifier_str oai:ri.conicet.gov.ar:11336/88855
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
title A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
spellingShingle A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
Ramacciotti, Carlos Dino
Cambrian clastic metasedimentary rocks
SW Gondwana paleogeography
Sierras Pampeanas
Precordillera/Cuyania terrane
SW Gondwana Cambrian platform
Sr-isotope dating of marbles
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
title_full A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
title_fullStr A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
title_full_unstemmed A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
title_sort A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin
dc.creator.none.fl_str_mv Ramacciotti, Carlos Dino
Casquet, César
Baldo, Edgardo Gaspar Agustín
Galindo Francisco, Carmen
Pankhurst, Robert
Verdecchia, Sebastián Osvaldo
Rapela, Carlos Washington
Fanning, Christopher Mark
author Ramacciotti, Carlos Dino
author_facet Ramacciotti, Carlos Dino
Casquet, César
Baldo, Edgardo Gaspar Agustín
Galindo Francisco, Carmen
Pankhurst, Robert
Verdecchia, Sebastián Osvaldo
Rapela, Carlos Washington
Fanning, Christopher Mark
author_role author
author2 Casquet, César
Baldo, Edgardo Gaspar Agustín
Galindo Francisco, Carmen
Pankhurst, Robert
Verdecchia, Sebastián Osvaldo
Rapela, Carlos Washington
Fanning, Christopher Mark
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cambrian clastic metasedimentary rocks
SW Gondwana paleogeography
Sierras Pampeanas
Precordillera/Cuyania terrane
SW Gondwana Cambrian platform
Sr-isotope dating of marbles
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Cambrian clastic metasedimentary rocks
SW Gondwana paleogeography
Sierras Pampeanas
Precordillera/Cuyania terrane
SW Gondwana Cambrian platform
Sr-isotope dating of marbles
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The Western Sierras Pampeanas (WSP) of Argentina record a protracted geological history from the Mesoproterozoic assembly of the Rodinia supercontinent to the early Paleozoic tectonic evolution of SW Gondwana. Two well-known orogenies took place at the proto-Andean margin of Gondwana in the Cambrian and the Ordovician, i.e., the Pampean (545–520 Ma) and Famatinian (490–440 Ma) orogenies, respectively. Between them, an extensive continental platform was developed, where mixed carbonate–siliciclastic sedimentation occurred. This platform was later involved in the Famatinian orogeny when it underwent penetrative deformation and metamorphism. The platform apparently extended from Patagonia to northwestern Argentina and the Eastern Sierras Pampeanas, and has probable equivalents in SW Africa, Peru, and Bolivia. The WSP record the outer (deepest) part of the platform, where carbonates were deposited in addition to siliciclastic sediments. Detrital zircon U–Pb SHRIMP ages from clastic metasedimentary successions and Sr-isotope compositions of marbles from the WSP suggest depositional ages between ca. 525 and 490 Ma. The detrital zircon age patterns further suggest that clastic sedimentation took place in two stages. The first was sourced mainly from re-working of the underlying Neoproterozoic metasedimentary rocks and the uplifted core of the early Cambrian Pampean orogen, without input from the Paleoproterozoic Río de la Plata craton. Sediments of the second stage resulted from the erosion of the still emerged Pampean belt and the Neoproterozoic Brasiliano orogen in the NE with some contribution from the Río de la Plata craton. An important conclusion is that the WSP basement was already part of SW Gondwana in the early Cambrian, and not part of the exotic Precordillera/ Cuyania terrane, as was previously thought.
publishDate 2018
dc.date.none.fl_str_mv 2018-05
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/11336/88855
Ramacciotti, Carlos Dino; Casquet, César; Baldo, Edgardo Gaspar Agustín; Galindo Francisco, Carmen; Pankhurst, Robert; et al.; A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin; Springer; International Journal of Earth Sciences; 107; 7; 5-2018; 2605-2625
1437-3254
1437-3262
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88855
identifier_str_mv Ramacciotti, Carlos Dino; Casquet, César; Baldo, Edgardo Gaspar Agustín; Galindo Francisco, Carmen; Pankhurst, Robert; et al.; A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin; Springer; International Journal of Earth Sciences; 107; 7; 5-2018; 2605-2625
1437-3254
1437-3262
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s00531-018-1617-7
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00531-018-1617-7
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/content/pdf/10.1007%2Fs00531-018-1617-7.pdf
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 Springer
publisher.none.fl_str_mv Springer
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
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spelling A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean marginRamacciotti, Carlos DinoCasquet, CésarBaldo, Edgardo Gaspar AgustínGalindo Francisco, CarmenPankhurst, RobertVerdecchia, Sebastián OsvaldoRapela, Carlos WashingtonFanning, Christopher MarkCambrian clastic metasedimentary rocksSW Gondwana paleogeographySierras PampeanasPrecordillera/Cuyania terraneSW Gondwana Cambrian platformSr-isotope dating of marbleshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Western Sierras Pampeanas (WSP) of Argentina record a protracted geological history from the Mesoproterozoic assembly of the Rodinia supercontinent to the early Paleozoic tectonic evolution of SW Gondwana. Two well-known orogenies took place at the proto-Andean margin of Gondwana in the Cambrian and the Ordovician, i.e., the Pampean (545–520 Ma) and Famatinian (490–440 Ma) orogenies, respectively. Between them, an extensive continental platform was developed, where mixed carbonate–siliciclastic sedimentation occurred. This platform was later involved in the Famatinian orogeny when it underwent penetrative deformation and metamorphism. The platform apparently extended from Patagonia to northwestern Argentina and the Eastern Sierras Pampeanas, and has probable equivalents in SW Africa, Peru, and Bolivia. The WSP record the outer (deepest) part of the platform, where carbonates were deposited in addition to siliciclastic sediments. Detrital zircon U–Pb SHRIMP ages from clastic metasedimentary successions and Sr-isotope compositions of marbles from the WSP suggest depositional ages between ca. 525 and 490 Ma. The detrital zircon age patterns further suggest that clastic sedimentation took place in two stages. The first was sourced mainly from re-working of the underlying Neoproterozoic metasedimentary rocks and the uplifted core of the early Cambrian Pampean orogen, without input from the Paleoproterozoic Río de la Plata craton. Sediments of the second stage resulted from the erosion of the still emerged Pampean belt and the Neoproterozoic Brasiliano orogen in the NE with some contribution from the Río de la Plata craton. An important conclusion is that the WSP basement was already part of SW Gondwana in the early Cambrian, and not part of the exotic Precordillera/ Cuyania terrane, as was previously thought.Fil: Ramacciotti, Carlos Dino. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Casquet, César. Universidad Complutense de Madrid; EspañaFil: Baldo, Edgardo Gaspar Agustín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Galindo Francisco, Carmen. Universidad Complutense de Madrid; EspañaFil: Pankhurst, Robert. British Geological Survey; Reino UnidoFil: Verdecchia, Sebastián Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba; ArgentinaFil: Rapela, Carlos Washington. 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: Fanning, Christopher Mark. Australian National University; AustraliaSpringer2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/88855Ramacciotti, Carlos Dino; Casquet, César; Baldo, Edgardo Gaspar Agustín; Galindo Francisco, Carmen; Pankhurst, Robert; et al.; A Cambrian mixed carbonate–siliciclastic platform in SW Gondwana: evidence from the Western Sierras Pampeanas (Argentina) and implications for the early Paleozoic paleogeography of the proto-Andean margin; Springer; International Journal of Earth Sciences; 107; 7; 5-2018; 2605-26251437-32541437-3262CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00531-018-1617-7info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs00531-018-1617-7info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/content/pdf/10.1007%2Fs00531-018-1617-7.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:08:30Zoai:ri.conicet.gov.ar:11336/88855instacron: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 14:08:30.684CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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