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dc.contributor.author
Alessandretti, Luciano
dc.contributor.author
Philipp, Ruy Paulo
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Chemale, Farid, Jr.
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Brückmann, Matheus Philippe
dc.contributor.author
Zvirtes, Gustavo
dc.contributor.author
Matté, Vinícius
dc.contributor.author
Ramos, Victor Alberto
dc.date.available
2017-01-17T18:52:15Z
dc.date.issued
2013-05
dc.identifier.citation
Alessandretti, Luciano; Philipp, Ruy Paulo; Chemale, Farid, Jr.; Brückmann, Matheus Philippe; Zvirtes, Gustavo; et al.; Provenance, volcanic record, and tectonic setting of the Paleozoic Ventania Fold Belt and the Claromecó Foreland Basin: Implications on sedimentation and volcanism along the southwestern Gondwana margin; Elsevier; Journal of South American Earth Sciences; 47; 5-2013; 12-31
dc.identifier.issn
0895-9811
dc.identifier.uri
http://hdl.handle.net/11336/11482
dc.description.abstract
This study focuses on the provenance, volcanic record, and tectonic setting of the Paleozoic Ventania System, a geologic province which comprises the Cambro-Devonian Ventania Fold Belt and the adjoining Permo-Carboniferous Claromecó Foreland Basin, located inboard the deformation front. The Ventania Fold Belt is formed of the Curamalal and Ventana groups, which are composed mainly of mature quartzites that were unconformably deposited on igneous and metamorphic basement. The Pillahuincó Group is exposed as part of the Claromecó Basin and it has lithological and structural features totally distinct from the lowermost groups. This group is composed of immature arkoses and subarkoses with intercalated tuff horizons, unconformably overlaying the quartzites and associated with glacial-marine deposits of the lower Late Carboniferous to Early Permian section. The petrography, as well as major and trace elements (including rare earth elements) support that the Ventania quartzites were derived from cratonic sources and deposited in a passive margin environment. For the Pillahuincó Group, we suggest a transition between rocks derived from and deposited in a passive margin environment to those with geochemical and petrographical signatures indicative of an active continental margin provenance. LA-MC-ICP-MS analysis performed on euhedral and prismatic zircon grains of the tuffs revealed an age of 284 ± 15 Ma. The geochemical fingerprints and geochronological data of the tuffs found in the Claromecó Basin support the presence of an active and widespread Lower Permian pyroclastic activity in southwestern Gondwana, which is interpreted as part of the Choiyoi Volcanic Province in Argentina and Chile.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Geochemistry
dc.subject
Provenance
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Tectonic Setting
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Ventania Fold Belt
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Geoquímica y Geofísica
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
Provenance, volcanic record, and tectonic setting of the Paleozoic Ventania Fold Belt and the Claromecó Foreland Basin: Implications on sedimentation and volcanism along the southwestern Gondwana margin
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-12T21:06:02Z
dc.journal.volume
47
dc.journal.pagination
12-31
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Alessandretti, Luciano. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Philipp, Ruy Paulo. Universidade Federal do Rio Grande do Sul; Brasil
dc.description.fil
Fil: Chemale, Farid, Jr.. Universidade Do Brasilia; Brasil
dc.description.fil
Fil: Brückmann, Matheus Philippe. Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Zvirtes, Gustavo. Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Matté, Vinícius. Universidade Federal do Rio Grande do Sul; Brasil
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Fil: Ramos, Victor Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
dc.journal.title
Journal of South American Earth Sciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0895981113000825
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jsames.2013.05.006
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