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cratères de Rio Cuarto

Rock formation · Argentina

The Río Cuarto craters is the name given to a set of ten elongate, rimmed depressions that lie within the Pampas of Córdoba Province,. These depressions are aligned and distributed along a northeast to southwest trending line for a distance of 50 km (31 mi). They are the most prominent and well preserved of hundreds of other similarly elongate and aligned depressions found on the Argentinian Pampas. Schultz and others argue that these ten depressions are a cluster of a primary and its associated secondary impact craters that were created by an unusual very low angle meteoroid impact and its fragmentation that occurred less than 10,000 years ago. Although often included in official catalogues of Earth impact features, their impact origin remains controversial as a model for their origin as terrestrial aeolian landforms has been proposed and is also well regarded in the scientific literature.