Short-duration of silicic magmatism from the Paraná Magmatic Province, constrained by highprecision U-Pb zircon geochronology - Rocha, Brenda Chung da; Davies, Joshua H. F. L; Janasi, Valdecir de Assis; Schaltegger, Urs; Nardy, Antonio Jose Ranalli; Luchetti, Ana Carolina Franciosi; Polo, Liza (Goldschmidt Conference, 2018)