New SHRIMP U-Pb data from the Famatina Complex constraining Early-Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina - Resultats de la cerca

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New SHRIMP U-Pb data from the Famatina Complex : constraining Early-Mid Ordovician Famatinian magmatism in the Sierras Pampeanas, Argentina / Dahlquist, Juan Andrés (Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina)) ; Pankhurst, Robert John (British Geological Survey) ; Washington Rapela, Carlos (CIG-CONICET-UNLP) ; Galindo, Carmen (Universidad Complutense de Madrid. Departamento de Petrología y Geoquímica) ; Alasino, Pablo (CRILAR-CONICET) ; Fanning, Mark (Research School of Earth Sciences) ; Saavedra, Julio (Instituto de Recursos Naturales y Agrobiología de Salamanca) ; Baldo, Edgardo G. A (Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina))
New SHRIMP U-Pb zircon ages are reported for igneous and sedimentary rocks of the Famatina Complex, constraining the age of the magmatism and the ensialic basins. Together with whole-rock and isotope geochemistry for the igneous rocks from the complex, these ages indicate that the voluminous parental magmas of metaluminous composition were derived by partial melting of an older lithosphere without significant asthenospheric contribution. [...]
2008 - DOI (Digital Object Identifier)

10.1344/105.000000260
Geologica acta, Vol. 6, Núm. 4 (Desembre 2008) , p. 319-333

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