Abstract
Our petrogenetic understanding of the Carboniferous granites of the Sierras Pampeanas has
improved in recent years, but their geodynamic setting is still not well constrained. Domeier and
Torsvik (2014) affirm that there is no documented and unambiguous evidence of an active margin
in the proto-Andean margin of Gondwana before the late Carboniferous (~ 320 Ma).