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dc.contributor.author
Tickyj, Hugo  
dc.contributor.author
Cingolani, Carlos Alberto  
dc.contributor.author
Varela, Ricardo  
dc.contributor.author
Chemale, Farid  
dc.contributor.other
Cingolani, Carlos Alberto  
dc.date.available
2020-03-04T21:27:07Z  
dc.date.issued
2017  
dc.identifier.citation
Tickyj, Hugo; Cingolani, Carlos Alberto; Varela, Ricardo; Chemale, Farid; Low-Grade Metamorphic Conditions and Isotopic Age Constraints of the La Horqueta Pre-Carboniferous Sequence, Argentinian San Rafael Block; Springer; 2017; 137-159  
dc.identifier.isbn
978-3-319-50151-2  
dc.identifier.uri
http://hdl.handle.net/11336/98809  
dc.description.abstract
The San Rafael block is a pre-Andean geological entity situated in central-western Mendoza Province, Argentina. It is part of the Cuyania composite terrane. In this terrane it is important to consider the units exposed at the ‘pre-Carboniferous’ outcrops because they record geological events before the accretion to Gondwana. One of which is the siliciclastic La Horqueta Formation of an uncertain Lower-Middle Paleozoic sedimentary age. It is characterized by asymmetric, open to similar folds, with southeast vergence. KI values obtained from the La Horqueta Formation in its type area vary from 0.24 to 0.33 Δ°2θ, indicating very low-grade (high anchizonal) to low-grade (epizonal) metamorphic conditions, that increase slightly from south to north. The white mica b-parameter measured (9.016 ± 0.007 Å) suggest an intermediate pressure regime. Whole rock Rb-Sr isochronic ages were obtained on metapelites from the key outcrops in the La Horqueta area (379 ± 15 Ma, MSWD: 1.4) and in the Los Gateados area (371 ± 62 Ma, MSWD: 3.7), indicating that metamorphism and deformation occurred during the Devonian Chanic Orogenic phase, probably related to Chilenia terrane collision. U-Pb LA-MC-ICPMS detrital zircon ages patterns suggest that the La Horqueta Formation received a dominant sedimentary input from Mesoproterozoic sources, minor contributions from cratonic environments of Paleoproterozoic and Neoarchean ages, and finally a younger input from Pampean and Famatinian orogenic belts. U-Pb detrital zircon ages indicate a maximum sedimentation age close to the Silurian-Devonian limit for the La Horqueta Formation.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/restrictedAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Metamorphism  
dc.subject
tectonic vergence  
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Rb-Sr age  
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Detrital zircon  
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Silurian-Devonian  
dc.subject.classification
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
Low-Grade Metamorphic Conditions and Isotopic Age Constraints of the La Horqueta Pre-Carboniferous Sequence, Argentinian San Rafael Block  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.type
info:eu-repo/semantics/bookPart  
dc.type
info:ar-repo/semantics/parte de libro  
dc.date.updated
2020-02-19T18:58:38Z  
dc.journal.pagination
137-159  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlin  
dc.description.fil
Fil: Tickyj, Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; 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  
dc.description.fil
Fil: Varela, Ricardo. 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: Chemale, Farid. Universidade do Vale do Rio dos Sinos; Brasil  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/978-3-319-50153-6_8  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/chapter/10.1007/978-3-319-50153-6_8  
dc.conicet.paginas
267  
dc.source.titulo
Pre-Carboniferous evolution of the San Rafael Block, Argentina: Implications in SW Gondwana Margin