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.

Unique catalogue of impact craters in South America Includes supplementary material: sn.pub/extras

Autorentext

The authors belong to a unique and multidisciplinary geological research group in South America, with a substantial background in Near Earth Objects, meteoritic and impact cratering studies. The group has been working on these subjects for more than 10 years in Argentina. R.D. Acevedo is a geologist and graduate of the University of Buenos Aires (UBA), currently working as a scientific investigator for the Argentine National Council of Science (CONICET). M. Rocca is a computer systems analyst, who also studied Geological Sciences at the UBA. Today his work is supported by The Planetary Society. V.M. García is a technical expert at CONICET; his work focuses on researching satellite information, looking for critical localities for impact crater studies.

Inhalt
Introduction.- Argentina.- Bolivia.- Brazil.- Chile.- Colombia.- Paraguay.- Perú.- Uruguay.- Venezuela.- The Guianas.- South Pacific Ocean.