希克蘇魯伯隕石坑
Models suggest that for such a large impact, debris was most likely scattered globally, but has since been eroded away. Its present size is believed to be a smaller portion of a round crater that the bolide originally created. Subsequent geological processes have deformed the crater into the current smaller oval shape. Sudbury Basin is the third-largest crater on Earth, after the Vredefort crater in South Africa, and the Chicxulub crater under Yucatán, Mexico.