Datación Sm-Nd del metamorfismo en ía Sierra de las Imanas (Sierras Pampeanas Occidentales, Argentina)

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dc.contributor.authorGalindo, Carmen
dc.contributor.authorMurra, J.
dc.contributor.authorBaldo, Edgardo G.
dc.contributor.authorCasquet Martín, César
dc.contributor.authorRapela, C.
dc.contributor.authorPankhurst, R. J.
dc.contributor.authorDahlquist, J. A.
dc.date.accessioned2014-10-27T09:49:07Z
dc.date.available2014-10-27T09:49:07Z
dc.date.issued2003
dc.description.abstractSm-Nd garnet geochronology of a migmatite gneiss from the Sierra de las Imanas (Western Sierras Pampeanas) has provided a peak metamorphic age of 464.6 ± 4.5 Ma, i.e., Middle Ordovician, corresponding to the Famatinian orogeny of Western Argentina This age agrees with metamorphic ages obtained in nearby areas by U-Pb SHRIMP dating of zircon overgrowths. This coincidence confirms the reliability of the Sm-Nd garnet chronometer in the study of metamorphic terranes. A Proterozoic Toxt age of 1628 Ma suggests the involvement of an old recycled crustal component in the sedimentary protolith of the migmatiteen_US
dc.identifier.urihttp://hdl.handle.net/10272/8980
dc.language.isospaen_US
dc.publisherSociedad Geológica de Españaen_US
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.otherSm-Nd datingen_US
dc.subject.otherMetamorphismen_US
dc.subject.otherSierras Pampeanasen_US
dc.subject.otherArgentinaen_US
dc.titleDatación Sm-Nd del metamorfismo en ía Sierra de las Imanas (Sierras Pampeanas Occidentales, Argentina)en_US
dc.titleSm-Nd dating of metamorphism of the Sierra de las Imanas (Sierras Pampeanas Occidentales, Argentina)eng
dc.typejournal articleen_US
dspace.entity.typePublication

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Geogaceta -- Nº 35, (2003)