|
|
| Passarelli,Cláudia R.; Basei,Miguel A.S.; Prazeres-Filho,Hélcio J.; Siga-Jr.,Oswaldo; Szabó,Gergely A.J.; Marco-Neto,Joaquim. |
| The Juréia Massif, southeastern São Paulo State (Brazil), is part of the Registro Domain, limited to the north by the Cubatão-Itariri Shear System and to the south by the Serrinha Shear Zone. Mostly composed of migmatitic granitegneiss rocks, represents a Paleoproterozoic terrane (1.9-2.2 Ga) strongly deformed during the Neoproterozoic (750-580 Ma). The present tectonic scenario was established at the end of the Neoproterozoic, as a result of collages associated with the formation of Western Gondwana. The Ponta da Juréia, our study area within the Juréia Massif, is constituted by paragneisses (garnet-muscovite-biotite gneisses). The monazite U-Pb age of 750 Ma is related to a main regional metamorphic event that reached the high amphibolite facies,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tectonic domain; Shear zone; Gneissic rocks; U-Pb geochronology. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000300008 |
| |
