Calc-alkaline and tholeiitic dyke swarms of Tandilia, Rio de la Plata craton, Argentina: U-Pb, Sm-Nd, and Rb-Sr 40Ar/39Ar data provide new clues for intraplate rifting shortly after the Trans-Amazonian orogeny - Teixeira, Wilson; Pinese, José Paulo Peccinini; Girardi, Vicente Antonio Vitorio; Piccirillo, Enzo Michele; Echeveste, H.; Ribot, A.; Fernandez, R.; Renne, Paul; Heaman, Larry M.; Iacumin, M. (Precambrian Research, 2002)