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O Macico Lagoa Preta (Sudeste do Brasil, Minas Gerais/Espirito Santo) e uma associacao de rochas ignease metaigneas. Estes magmas intrudiram o embasamento gnaissico-migmatitico durante a estruturacao doOrogeno Aracuai-Oeste Congo no Neoproterozoico, um dos muitos orogenos Brasiliano/Pan-Africano quese desenvolveram durante a amalgamacao do Oeste Gondwana. O Macico e composto por dois plutons separados por uma falha direcional de orientacao N60-70E. Rochas do Pluton Norte sao cumulados gabroicose anortositossem deformacao ou metamorfismo. O Pluton Sul e constituido por gabros, charnockito, dioritos e granitos deformados e metamorfizados. Dados geologicos e petrograficos indicam que o Pluton Norte foi intrudido numa fase tardia pos-tectonica enquanto o Pluton Sul tem caracteristicas sin-tectonicas. Abstract: The Lagoa Preta Massif (Southeast Brazil, Minas Gerais/Espirito Santo), consist of an association of igneousand metaigneous rocks. These magmas intruded gneissic-migmatitic basement during the building of theNeoproterozoic Aracuai-West Congo Orogen, one of the many Brasiliano/Pan-African orogens that developedduring assembly of West Gondwana. The massif is composed of two plutons separated by a directional faultwith a N60-70E orientation. Rocks from Northern Pluton are gabbroic cumulates and anorthosites, notdeformed nor metamorphosed. The Southern Pluton is constituted by deformed and metamorphosed gabbros,charnockite, diorite and granites. Geological and petrographical data pointed out that the Northern Plutonwas emplaced during a late to post-tectonic phase of the Brasiliano Orogeny while the Southern Plutonmagmas were emplaced on a syn-tectonic one.

PLUTONISMO SIN- E TARDI/PÓS-COLISIONAL NO BRASILIANO: EXEMPLO DO MACIÇO LAGOA PRETA (MG/ES)