Evolution of polycyclic basement complexes in the Araçuaí Orogen, based on U-Pb SHRIMP data: Implications for Brazil-Africa links in Paleoproterozoic time

Noce, Carlos MPedrosa-Soares, Antônio Carlosda Silva, Luiz CarlosArmstrong, RichardPiuzana, Danielle2015-12-080301-9268http://hdl.handle.net/1885/33132Paleoproterozoic basement of the Araçuaí Orogen is composed of amphibolite and granulite facies orthogneiss units known as Mantiqueira and Juiz de Fora complexes. Six U-Pb SHRIMP crystallization ages for the Mantiqueira Complex range from 2137 ± 19 toKeywords: amphibolite; granulite; magmatism; orogeny; Proterozoic; SHRIMP dating; Africa; Aracuai; Brazil; Central Africa; Congo; Minas Gerais; South America; Sub-Saharan Africa Araçuaí Orogen; Gneiss complexes; Paleoproterozoic basement; Zircon SHRIMP agesEvolution of polycyclic basement complexes in the Araçuaí Orogen, based on U-Pb SHRIMP data: Implications for Brazil-Africa links in Paleoproterozoic time200710.1016/j.precamres.2007.06.0012015-12-08