A complete and updated catalogue of impact craters and structures in South America from 2014 is
presented here. Approximately eighty proven suspected and disproven structures have been
identified by several sources in this continent. All the impact sites of this large continent
have been exhaustively reviewed: the proved ones the possible ones and some very doubtful.
Many sites remain without a clear geological in situ confirmation and some of them could be
even rejected. Argentina and Brazil are leading the list containing almost everything detected.
In Bolivia Chile Colombia Guyana Paraguay Perú Uruguay and Venezuela only a few were
observed. Only Ecuador is waiting for new discoveries. So far the largest well stated impact
site is still the Araguainha structure in Brazil with its 40 kilometers in diameter. However
two possible impact structures are larger than Araguainha: Malvinas (with 250 kilometers in
diameter) and Vichada in Colombia (50 kilometers). This study also reports the existence of
some Tertiary-Quaternary glassy impactite layers: the escorias and tierras cocidas of the
pampas in Argentina.
