Early Cambrian U-Pb zircon age and Hf-isotope data from the Guasayán pluton, Sierras Pampeanas, Argentina: implications for the northwestern boundary of the Pampean arc - Dahlquist, Juan; Verdecchia, Sebastián O; Baldo, Edgardo G. A.; Basei, Miguel Angelo Stipp; Alasino, Pablo; Urán, Gimena A; Rapela, Carlos W.; Campos Neto, Mario da Costa; Zandomeni, Priscila S. (Andean Geology, 2016)