Rochas Igneas Nazareno Mg
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1. Evolução geologica das rochas maficas e ultramaficas no Greenstone Belt Barbacena, região de Nazareno, MG
The study area is located at the southem border of the São Francisco Craton and shows plutonic, vo1canic and sedimentary rocks, of Archean to Mesoproterozoic age, reworked by later thermo-tectonic events. Two different groups of mafic and ultramafic rocks occur in this region. The first is a komatiite-tholeiite sequence belonging to the Barbacena Greenstone
Publicado em: 2002