Paleo- to Mesoproterozoic crustal sources for the igneous felsic rocks of the Costa Marques region, SW Amazonian Craton, Brazil: evidence from preliminary SHRIMP U-Pb zircon ages and Hf isotopes in zircon - Bettencourt, Jorge Silva; Payolla, Bruno Leonelo; Leite Junior, Washington Barbosa; Sato, Kei; Basei, Miguel Angelo Stipp (South American Symposium on Isotope Geology, 2014)