Evidence for change in crust formation process during the Paleoarchean in the São Francisco Craton (Gavião Block): Coupled zircon Lu-Hf and U-Pb isotopic analyses and tectonic implications

•New U-Pb and Hf isotope data of 3.51–3.4 Ga tonalites and diorites from GB.•Crustal source chance at 3.51 Ga evidenced by the input of juvenile material.•Evidence of input from a strongly depleted mantle at 3.4 Ga.•Change in the geodynamic regime of continental crust formation at ca. 3.51 Ga.