Sedimentary and U-Pb detrital zircons provenance of the Paleoproterozoic Piracicaba and Sabar? groups, Quadril?tero Ferr?fero, Southern S?o Francisco craton, Brazil.

The Quadril?tero Ferr?fero is an important mineral province located in Southern S?o Francisco craton, SE Brazil. Its prominent feature is the Gandarela syncline that was formed as part of the regional deformation event in the southernmost part of the craton at ca. 2,000 Ma. The syncline exposes several economically important units of Rio das Velhas and Minas supergroups, widely known for their gold and iron ore mineral deposits. This work focused on the upper Minas Supergroup ? Cercadinho Formation and Sabar? Group in the Gandarela syncline. We showed detail stratigraphic surveys combined with U-Pb detrital zircon analysis. Data reveal the development of high- to low-density turbidity systems. The first one is related to the deposition of Cercadinho Formation that marks the siliciclastic infilling of the Minas basin. For the Sabar? Group, a fine turbidite system of foredeep depocenter is inferred. The detrital zircon analysis indicates that their sediments were derived from Archean, Rhyacian, and Orosirian exhumed terrains, besides granitoids positioned to the south and east of Quadril?tero Ferr?fero. We proposed the age of 2,036 ? 25 Ma as the maximum age of deposition of Sabar? Group, whose sedimentation occurs in the first stages of Minas accretionary orogen