Geologia, petrografia e geoquímica das rochas plutônicas precambrianas (unidade metadiorítica Ibitutinga e unidade metatrondhjemítica Caburu) intrusivas nas rochas do greenstone Belt Barbacena, São João del Rei, Minas Gerais

In the southeastern portion of the São Francisco Craton, located between São João Del Rey and Ritápolis cities (Minas Gerai, State) an area of nearly 180 km² of rocks of the Barbacena Greenstone Belt (metaultramafic and amphibolitic rocks, and schists) and associated mafic to felsic plutonic intrusives was mapped. The Granodioritic – Granitic Unit comprises granites, quartz monnzodiorJtes and granodiorites, previously vaguely described in the litera.ture as granite. The parental magmas for this rock unit are interpretated as the most. Possible source of the K-rich solutions responsible for the metasomatic transtormations of the rocks of Ibitutinga Metadioritic Unit and the Caburu Metatrondhjemitic Unil.

Grantor dc:publisher

Universidade Federal do Rio de Janeiro

Year dc:date.issued

1992

Author dc:creator

• Ávila, Ciro Alexandre

Advisor dc:contributor.advisor

• Pires, Fernando Roberto Mendes

• Rochas ígneas
• São João del Rei (MG)
• Petrologia
• Geologia
• Geoquímica

Statement dc:rights

• Acesso Aberto

Language dc:language

por

Handle dc:identifier.uri

http://hdl.handle.net/11422/5755

OAI identifier oai:identifier

oai:pantheon.ufrj.br:11422/5755