Title of article
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
Author/Authors
Casquet، نويسنده , , César and Pankhurst، نويسنده , , Robert J. and Fanning، نويسنده , , C. Mark and Baldo، نويسنده , , Edgardo and Galindo، نويسنده , , Carmen and Rapela، نويسنده , , Carlos W. and Gonzلlez-Casado، نويسنده , , Jose M. and Dahlquist، نويسنده , , Juan A.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
6
From page
524
To page
529
Abstract
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.
Keywords
Sierras Pampeanas , Argentina , Grenville , U–Pb SHRIMP zircon dating , metamorphism
Journal title
Gondwana Research
Serial Year
2006
Journal title
Gondwana Research
Record number
2363483
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