There is considerable discussion about the origin and the morphogenesis of the Iberá
depression, and that according to several authors this aspect should be treated from
the point of view of the climate structure. During its genesis, shaping and fluvial
deposition acted caused by changes or shifts in the bed of the Parana River, as well
as semiarid periods that submitted the region to aeolian erosion and deflation,
changing the configuration of valleys and hills. More recently, the depressions were
occupied by water, evolving toward the current landscape