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dc.contributor.author
Manassero, Marcelo Jorge
dc.contributor.author
Cingolani, Carlos Alberto
dc.contributor.author
Abre, Paulina
dc.date.available
2019-04-12T22:15:14Z
dc.date.issued
2009-05
dc.identifier.citation
Manassero, Marcelo Jorge; Cingolani, Carlos Alberto; Abre, Paulina; A Silurian - Devonian marine platform-deltaic system in the San Rafael Block, Argentine Precordillera-Cuyania terrane: Lithofacies and provenance; Geological Society Publications House; Geological Society of London Special Publication; 314; 5-2009; 215-240
dc.identifier.issn
0016-7649
dc.identifier.uri
http://hdl.handle.net/11336/74330
dc.description.abstract
The San Rafael Block is included as a part of the pre-Andean region, in the southern sector of the Argentine Precordillera-Cuyania terrane, within the western Gondwana margin. The Río Seco de los Castaños Formation (Upper Silurian-Lower Devonian) is one of the major marine-siliciclastic pre-Carboniferous units, and is interpreted as a distal to proximal silty platform-deltaic system. The dominant sedimentary processes were wave and storm action and the source areas were located to the east, close to the study area. The rocks are mainly of immature arkosic sandstones showing both recycled orogen and continental block provenances. Sedimentological characteristics of conglomerate-filled channels and an organic-matter-rich bed are described. X-ray diffraction analyses of the clay minerals from the sequences show that very low-grade metamorphic conditions acted during the Early Carboniferous. Geochemical analyses indicate moderate to strong weathering, and potassium metasomatism. Zr/Sc ratios lower than 22, no important enrichments of Zr, Th/Sc ratios, high Sc and Cr concentration and the Eu-anomalies indicate a provenance from a less evolved upper continental crust. TDM ages and ε Nd are within the range of the Mesoproterozoic basement and Palaeozoic supracrustal rocks from the Precordillera-Cuyania terrane. Probable sources, tectonic setting and land-sea interactions are discussed. © The Geological Society of London 2009.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Geological Society Publications House
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sedimentology
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San Rafael Block
dc.subject
Lithofacies
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Provenance
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Geología
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
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CIENCIAS NATURALES Y EXACTAS
dc.title
A Silurian - Devonian marine platform-deltaic system in the San Rafael Block, Argentine Precordillera-Cuyania terrane: Lithofacies and provenance
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-27T13:56:37Z
dc.identifier.eissn
0305-8719
dc.journal.volume
314
dc.journal.pagination
215-240
dc.journal.pais
Reino Unido
dc.journal.ciudad
London
dc.description.fil
Fil: Manassero, Marcelo Jorge. 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
dc.description.fil
Fil: Cingolani, Carlos Alberto. 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. División Científica de Geología, Facultad Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, (1900), La Plata; Argentina
dc.description.fil
Fil: Abre, Paulina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. División Científica de Geología, Facultad Ciencias Naturales y Museo, Universidad Nacional de La Plata, Paseo del Bosque s/n, (1900), La Plata; Argentina
dc.journal.title
Geological Society of London Special Publication
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1144/SP314.12
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://sp.lyellcollection.org/content/314/1/215
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