论文信息 - Chronology of Neoproterozoic-Cambrian granitic magmatism in the Aracuai belt, Eastern Brazil, based on single zircon evaporation dating

Chronology of Neoproterozoic-Cambrian granitic magmatism in the Aracuai belt, Eastern Brazil, based on single zircon evaporation dating

Granitic magmatism related to the orogenic stages of the Aracuai Belt took place at 595-575 Ma, and are represented by two distinct suites. One is composed of I-type granitoids and includes the following plutons: Brasilândia (595±3 Ma), Sao Vitor (576±4 Ma) and Guarataia (574+2 Ma). The other suite comprises S-type granites like the Atalela (591±5 Ma) and Wolf (582±5 Ma) plutons. After a long period of magmatic quiescence, a batholith composed of the Caladao granite and Padre Paraiso charnockite intruded at 519±2 Ma. This magmatic episode is probably associated to the collapse of the orogen.

M. Macambira | C. Noce | A. C. P. Soares

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