The young guys are in town: a~500 Ma U-Pb Shrimp age for the Santos and Guarujá granites extends futher sout the Ribeira "G5" magmatism - Janasi, Valdecir de Assis; Siga Júnior, Oswaldo; Sato, Kei; Machado, Fábio Braz; Soares Junior, Adilson Viana; Magalhães, Ana Olivia Barufi Franco de; Machado, Andréa Venancio (Congresso Brasileiro de Geologia, 2012)