U-Pb and Ar-39/Ar-40 data constraining the ages of the source, emplacement and recrystallization/cooling events from late- to post-D-3 Variscan granites of the Gouveia area, central Portugal

Neiva, A.M.R.; Williams, Ian; Lima, S M; Teixeira, R J S

U-Pb and Ar-39/Ar-40 data constraining the ages of the source, emplacement and recrystallization/cooling events from late- to post-D-3 Variscan granites of the Gouveia area, central Portugal

Date

2012

Authors

Neiva, A.M.R.

Williams, Ian

Lima, S M

Teixeira, R J S

Publisher

Elsevier

Abstract

Late Carboniferous U-Pb ages have been measured on igneous zircon from late- and post-D 3 Sn-bearing two-mica granites from the Gouveia area in the Central Iberian Zone. Inherited zircon from these granites is mainly of Neoproterozoic age, a small amount