40Ar/39Ar and Rb/Sr Geochronology of the Gois-Crixs Dike Swarm, Central Brazil: constraints on the Neoarchean-Paleoproterozoic Tectonic Boundary in South America, and Nd-Sr Signature of the Subcontinental Mantle - Corrêa da Costa, Paulo Cesar; Girardi, Vicente Antonio Vitorio; Teixeira, Wilson (International Geology Review, 2006)