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BIBTEX RIS

Zircon fission track and U–Pb dating methods applied to São Paulo and Taubaté Basins located in the southeast Brazil

2012; Elsevier BV; Volume: 50; Linguagem: Inglês

10.1016/j.radmeas.2012.07.015

1879-0925

Eduardo Augusto Campos Curvo, Carlos Alberto Tello Saénz, Andrew Carter, Airton Natanael Coelho Dias, Carlos José Soares, Wagner Massayuki Nakasuga, Rosana Silveira Resende, Maria Rosângela Gomes, I. Alencar, J.C. Hadler,

Geochemistry and Geologic Mapping

Zircon samples from the Cenozoic São Paulo and Taubaté Basins and Mantiqueira Mountain Range (southeast Brazil) were concomitantly dated by zircon Fission Track Method (FTM) and in situ U–Pb dating method. While FTM detrital-zircon data are ideally used to provide low-temperature information, U–Pb single detrital grain ages record the time of zircon formation in igneous or high grade metamorphic environments. This methodology may be used to study the possible sources of the basins sediments. The results suggest that the São Paulo Basin is composed of sediments from just one source, the Mantiqueira Mountain Range. On the other hand, the Taubaté Basin presents further sediment sources besides the Mantiqueira Mountain Range.