RT Journal Article
T1 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
A1 Casquet Martín, César
A1 Pankhurst, R.J.
A1 Fanning, C.M.
A1 Baldo, Edgardo G.
A1 Galindo Francisco, María Del Carmen
A1 Rapela, Carlos W.
A1 González Casado, José Manuel
A1 Dahlquist, Juan A.
AB 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.
PB Elsevier Science B. V., Amsterdam
SN 1342-937X
YR 2006
FD 2006
LK https://hdl.handle.net/20.500.14352/49545
UL https://hdl.handle.net/20.500.14352/49545
LA eng
DS Docta Complutense
RD 8 abr 2025