These features have been found at dozens of other impact sites across the planet, and are now considered to be the hallmarks of an extra-terrestrial impact event.
Dintho tsena di fumanwe dibakeng tse ding tse nang le tshusumetso ho pholletsa le lefatshe, mme jwale di nkwa e le matshwao a diketsahalo tse ding tsa lefatshe.