Título:
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U–Pb SHRIMP zircon dating of Grenvillian metamorphism in Western Sierras Pampeanas (Argentina): Correlation with the Arequipa-Antofalla craton and constraints on the extent of the Precordillera Terrane
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Autores:
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Casquet, César ;
Pankhurst, R.J. ;
Fanning, C.M. ;
Baldo, Edgardo G. ;
Galindo Francisco, Mª del Carmen ;
Rapela, Carlos W. ;
González Casado, José Manuel ;
Dahlquist, Juan A.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science B. V., Amsterdam, 2006
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Geología: Petrología
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Tipo = Artículo
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Resumen:
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Metamorphism of Grenvillian age (ca. 1.2 Ga; U–Pb zircon dating) is recognized for the first time in the Western Sierras Pampeanas (Sierra de Maz). Conditions reached granulite facies (ca. 780 °C and ca. 780 MPa). Comparing geochronological and petrological characteristics with other outcrops of Mesoproterozoic basement, particularly in the northern and central Arequipa-Antofalla craton, we suggest that these regions were part of a single continental crustal block from Mesoproterozoic times, and thus autochthonous or parautochthonous to Gondwana.
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En línea:
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https://eprints.ucm.es/id/eprint/12165/1/Casquet_et_al_GR_1_2006.pdf
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