Skip navigation
Skip navigation

Evidences of Rhyacian extensional event in the Central Domain of the Borborema Province, NE Brazil

Armstrong, Richard; Guimaraes, Ignez P.; Silva, E.G.; da Silva Filho, Adejardo F.; Almeida, C.N.


Granitic gneisses (Fazenda Salvador) and metamafic to meta-ultramafic rocks occur as intrusions in granodioritic to granitic orthogneisses, in the Central Domain of the Borborema Province, NE Brazil. The Fazenda Salvador orthogneisses are coarse to very coarse grained, porphyroclastic to equigranular and locally migmatized. Enclaves of dioritic compositions are common, usually showing crenulated to lobate contacts with the augen gneisses. Metabasite and meta-ultramafic rocks including...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Comunicacoes Geologicas


File Description SizeFormat Image
01_Armstrong_Evidences_of_Rhyacian_2014.pdf1.14 MBAdobe PDF    Request a copy

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator