In 2013, it was stated that the Corossol structure is related to a proposed impact event that is hypothesized to have taken place at the start of the Younger Dryas Episode and it supports the hypothesis that a meteorite impact triggered this cooling episode.[6] A later paper[1] argues that their interpretation is based on the misreading of preliminary results, including a radiocarbon date, published in a conference abstract.[7] Later papers conclude on the basis of regional studies and the presence of till and glacial lineations cutting across the Corossol structure that the radiocarbon date only indicates that it was formed before deglaciation, which occurred approximately 12.7 and 12.4 cal. ka BP. Furthermore, the conference abstract did not take into account the fluvial erosion of the cuestas which support a Pre-Quaternary, possibly Paleogene or older, age for the Corossol structure. As a result, it was concluded that this structure has never been "provisionally dated to 12.9 cal. ka BP" as stated in 2013.[1][2]