Abstract:In this section we present the characteristic microstructures of granitic rocks and mylonites exposed in the southeastern region of Brazil, belonging to the geological context of the Neoproterozoic Araçuaí orogen and the Paleoproterozoic Mineiro belt. The studied rocks include most biotite and biotite hornblende tonalite and granodiorite and minor granite showing similar signatures to magnesian, calcalkalic, metaluminous to peraluminous magmas. As a representative of continental or oceanic magmatic arcs, these… Show more
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