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O MAGMATISMO PALEOPROTEROZÓICO DA REGIÃO DE SÃO FÉLIX DO XINGU, PROVÍNCIA ESTANÍFERA DO SUL DO PARÁ: PETROGRAFIA E GEOCRONOLOGIA

2006; Sociedade Brasileira de Geologia; Volume: 36; Issue: 4 Linguagem: Inglês

10.25249/0375-7536.2006364724732

2177-4382

Sabrina Cristina Cordovil Pinho, Carlos Marcello Dias Fernandes, NILSON PINTO TEIXEIRA, Antonio Lima de Paiva Júnior, Vanessa Lobato Cruz, Cláudio Nery Lamarão, Cândido Augusto Veloso Moura,

Geochemistry and Geologic Mapping

New petrographical and geochronological data are presented for three granitics bodies of the Velho Guilherme Intrusive Suite and for the Uatumã Group volcanic rocks, which occur around Sao Felix do Xingu town, Southern Pará Tin Province. The faciological characterization of these rocks reveals remarkable similarities among the Serra da Queimada, Santa Rosa, and Vila Santa Rosa porphyritic massifs, strengthening the results or other studies on other bodies of this suite. The volcanic rocks of the Uatumã Group represent a bimodal suite closely associated with these massifs. Pb-Pb zircon ages of approximately 1880 Ma for these rocks point to an exclusively Paleoproterozoic volcano-plutonic magmatism.