Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana

In the Famatina range, Sierras Pampeanas of Argentina (SW Gondwana), subvertical calc-alkaline lamprophyric dike swarms crop out through >300 km. The dikes cut Ordovician units with a prominent NW-SE trending and are covered by continental sedimentary successions of Pennsylvanian to Permian age....

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Detalles Bibliográficos
Autores: Martina, Federico, Canelo, Horacio Nicolas, Davila, Federico Miguel, de Hollanda, María Helena M., Teixeira, Wilson
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:11336/88921
Acceso en línea:http://hdl.handle.net/11336/88921
Access Level:acceso abierto
Palabra clave:40AR/39AR GEOCHRONOLOGY
FAMATINA RANGE
LAMPROPHYRE DIKE SWARM
MISSISSIPPIAN
STRUCTURAL ANALYSIS
SW GONDWANA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
id AR_45d8cc726c823bf1eb3b4ea36e30d12e
oai_identifier_str oai:ri.conicet.gov.ar:11336/88921
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
title Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
spellingShingle Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
Martina, Federico
40AR/39AR GEOCHRONOLOGY
FAMATINA RANGE
LAMPROPHYRE DIKE SWARM
MISSISSIPPIAN
STRUCTURAL ANALYSIS
SW GONDWANA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
title_full Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
title_fullStr Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
title_full_unstemmed Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
title_sort Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana
dc.creator.none.fl_str_mv Martina, Federico
Canelo, Horacio Nicolas
Davila, Federico Miguel
de Hollanda, María Helena M.
Teixeira, Wilson
author Martina, Federico
author_facet Martina, Federico
Canelo, Horacio Nicolas
Davila, Federico Miguel
de Hollanda, María Helena M.
Teixeira, Wilson
author_role author
author2 Canelo, Horacio Nicolas
Davila, Federico Miguel
de Hollanda, María Helena M.
Teixeira, Wilson
author2_role author
author
author
author
dc.subject.none.fl_str_mv 40AR/39AR GEOCHRONOLOGY
FAMATINA RANGE
LAMPROPHYRE DIKE SWARM
MISSISSIPPIAN
STRUCTURAL ANALYSIS
SW GONDWANA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic 40AR/39AR GEOCHRONOLOGY
FAMATINA RANGE
LAMPROPHYRE DIKE SWARM
MISSISSIPPIAN
STRUCTURAL ANALYSIS
SW GONDWANA
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description In the Famatina range, Sierras Pampeanas of Argentina (SW Gondwana), subvertical calc-alkaline lamprophyric dike swarms crop out through >300 km. The dikes cut Ordovician units with a prominent NW-SE trending and are covered by continental sedimentary successions of Pennsylvanian to Permian age. The dikes show a strong structural control associated with Riedel fault systems. Detailed field analysis suggested a ∼N-S opening direction oblique to the attitude of dike walls and a left-lateral transtensional tectonics during the emplacement. 40Ar/39Ar geochronology of a lamprophyric sample defined a crystallization age (plateau; whole rock) of 357.1 ± 7.1 Ma (MSWD = 2.3). Coetaneous ductile zones with dominant strike-slip motion, documented along western Argentina for >600 km, suggest a regional event in SW Gondwana during the Mississippian. We propose that this deformation was the result of the counterclockwise fast rotation of Gondwana between 365 and 345 Ma, when the Famatina range and western Argentina occupied a sub-polar position. A transform margin along SW Gondwana better explains our (and others) data rather than a subduction margin. This scenario is also consistent with the occurrence of A-type granites and normal-fault basins within the foreland as well as bimodal volcanics.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
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/11336/88921
Martina, Federico; Canelo, Horacio Nicolas; Davila, Federico Miguel; de Hollanda, María Helena M.; Teixeira, Wilson; Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 83; 4-2018; 68-80
0895-9811
CONICET Digital
CONICET
url http://hdl.handle.net/11336/88921
identifier_str_mv Martina, Federico; Canelo, Horacio Nicolas; Davila, Federico Miguel; de Hollanda, María Helena M.; Teixeira, Wilson; Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 83; 4-2018; 68-80
0895-9811
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://linkinghub.elsevier.com/retrieve/pii/S0895981117303917
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.02.006
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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_ 1799195288012849152
spelling Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of GondwanaMartina, FedericoCanelo, Horacio NicolasDavila, Federico Miguelde Hollanda, María Helena M.Teixeira, Wilson40AR/39AR GEOCHRONOLOGYFAMATINA RANGELAMPROPHYRE DIKE SWARMMISSISSIPPIANSTRUCTURAL ANALYSISSW GONDWANAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In the Famatina range, Sierras Pampeanas of Argentina (SW Gondwana), subvertical calc-alkaline lamprophyric dike swarms crop out through >300 km. The dikes cut Ordovician units with a prominent NW-SE trending and are covered by continental sedimentary successions of Pennsylvanian to Permian age. The dikes show a strong structural control associated with Riedel fault systems. Detailed field analysis suggested a ∼N-S opening direction oblique to the attitude of dike walls and a left-lateral transtensional tectonics during the emplacement. 40Ar/39Ar geochronology of a lamprophyric sample defined a crystallization age (plateau; whole rock) of 357.1 ± 7.1 Ma (MSWD = 2.3). Coetaneous ductile zones with dominant strike-slip motion, documented along western Argentina for >600 km, suggest a regional event in SW Gondwana during the Mississippian. We propose that this deformation was the result of the counterclockwise fast rotation of Gondwana between 365 and 345 Ma, when the Famatina range and western Argentina occupied a sub-polar position. A transform margin along SW Gondwana better explains our (and others) data rather than a subduction margin. This scenario is also consistent with the occurrence of A-type granites and normal-fault basins within the foreland as well as bimodal volcanics.Fil: Martina, Federico. 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; ArgentinaFil: Canelo, Horacio Nicolas. 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; ArgentinaFil: Davila, Federico Miguel. 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; ArgentinaFil: de Hollanda, María Helena M.. Universidade de Sao Paulo; BrasilFil: Teixeira, Wilson. Universidade de Sao Paulo; BrasilPergamon-Elsevier Science Ltd2018-04info: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/11336/88921Martina, Federico; Canelo, Horacio Nicolas; Davila, Federico Miguel; de Hollanda, María Helena M.; Teixeira, Wilson; Mississippian lamprophyre dikes in western Sierras Pampeanas, Argentina: Evidence of transtensional tectonics along the SW margin of Gondwana; Pergamon-Elsevier Science Ltd; Journal of South American Earth Sciences; 83; 4-2018; 68-800895-9811CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0895981117303917info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jsames.2018.02.006info:eu-repo/semantics/openAccessAtribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)https://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:48:07Zoai:ri.conicet.gov.ar:11336/88921instacron: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 13:48:07.925CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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