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TitleSize and morphology of the Chicxulub impact crater
AuthorMorgan, J; Warner, M; Brittan, J; Buffler, R; Camargo, A; Christeson, G; Denton, P; Hildebrand, A; Hobbs, R; Macintyre, H; Mackenzie, G; Maguire, P; Marin, L; Nakamura, Y; Pilkington, M; Sharpton, V; Snyder, DORCID logo; Snyder, V; Suarez, G; Trejo, A
SourceNature vol. 390, 1997 p. 472-476,
Alt SeriesGeological Survey of Canada, Contribution Series 1997157
PublisherSpringer Nature
Mediapaper; on-line; digital
File formatpdf
Lat/Long WENS -91.0000 -88.0000 23.0000 20.0000
Subjectsgeophysics; extraterrestrial geology; meteorite craters; seismic data; seismic surveys, marine; seismic reflection surveys; Chicxulub Crater; Cretaceous; Tertiary
Illustrationscross-sections; seismic sections
Released1997 12 04
AbstractThe Chicxulub impact in Mexico has been linked to the mass extinction of species at the end of the Cretaceous period. From seismic data collected across the offshore portion of the impact crater, the diameter of the transient cavity is determined to be about 100 km. This parameter is critical for constraining impact-related effects on the Cretaceous environment, with previous estimates of the cavity diameter spanning an order of magnitude in impact energy. The offshore seismic data indicate that the Chicxulub crater has a multi-ring basin morphology, similar to large impact structures observed on other planets, such as Venus.

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