Rhyodacites from the Porongos Complex, southermost Brazilian Shield, evaluated by integration of field geology, geochemistry and U-Pb dating with the USP-SHRIMP IIe - Petry, Thales Sebben; Pertille, Juliana; Hartmann, Léo; Philipp, Ruy Paulo; Tassinari, Colombo Celso Gaeta; Sato, Kei (South American Symposium on Isotope Geology, 2014)