Impact event Chicxulub Crater. This crater is centered on the Yucatán Peninsula of Mexico and was discovered by Tony Camargo and Glen Pentfield while working as geophysicists for the Mexican oil company PEMEX. What they reported as a circular feature later turned out to be a crater estimated to be in diameter. This convinced the vast majority of scientists that this extinction resulted from a point event that is most probably an extraterrestrial impact and not from increased volcanism and climate change (which would spread its main effect over a much longer time period). Although there is now general agreement that there
Chesapeake Bay impact crater also one of three factors contributing to the sinking of land near the Chesapeake Bay. For example, Hampton Roads is gradually sinking at a rate between per century. This is occurring because of the slippage of the coast into the crater, the reverse effects of isostatic rebound of the crust of the earth from the weight of long absent glaciers north of Maryland, and groundwater removal. Chesapeake Bay impact crater The Chesapeake Bay impact crater was formed by a bolide that impacted the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch.