Mexican site for K/T impact crater?

Details Mexican site for K/T impact crater? Mexican site for K/T impact crater?

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.351..105p&link_type=abstract

Nature (ISSN 0028-0836), vol. 351, May 9, 1991, p. 105.

Astronomy and Astrophysics

Astrophysics

36

Earth, Cretaceous-Tertiary Event, Impacts, Craters, Position (Location), Diagrams, Chicxulub Crater, Yucatan, Anomalies, Size, Description, Fracturing, Origin, Formation

Scientific paper

Research throughout the Caribbean suggests that the geophysical anomalies in the Yucatan first noted by Penfield and Camargo (1981) and called the Chicxulub crater could be the site of the impact purported to have caused the K/T extinctions. A semicircular ring of sink holes, known locally as cenotes, which correlates with the geophysical anomalies has been identified, and it is argued that the origin of the cenote ring is related to postimpact subsidence of the Chicxulub crater rim. If there is indeed a crater, the region within the cenote ring corresponds to its floor and the crater rim diameter is probably larger than 200 km. If confirmed as a site of impact, the Chicxulub crater would be the largest terrestrial impact crater known, which is consistent with the uniqueness of the K/T global catastrophe.

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