Mafic magmatism associated with the Goi's magmatic arc in the Anicuns region, Goi's, central Brazil: Sm-Nd isotopes and new ID-TIMS and SHRIMP U-Pb data

Laux, Jorge H; Pimentel, Marcio; Dantas, Elton L; Armstrong, Richard; Armele, Alan; Nilson, Ariplinio

Mafic magmatism associated with the Goi's magmatic arc in the Anicuns region, Goi's, central Brazil: Sm-Nd isotopes and new ID-TIMS and SHRIMP U-Pb data

Date

2004

Authors

Laux, Jorge H

Pimentel, Marcio

Dantas, Elton L

Armstrong, Richard

Armele, Alan

Nilson, Ariplinio

Publisher

Pergamon-Elsevier Ltd

Abstract

Rocks exposed in the Anicuns region, in the eastern part of the Goiás magmatic arc, are represented dominantly by amphibolites (metavolcanic and metaplutonic) and metapelitic rocks. New U-Pb results demonstrate that this association is Neoproterozoic and