Title: The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary
Authors: Schulte, Peter ×
Alegret, Laia
Arenillas, Ignacio
Arz, Jose A
Barton, Penny J
Bown, Paul R
Bralower, Timothy J
Christeson, Gail L
Claeys, Philippe
Cockell, Charles S
Collins, Gareth S
Deutsch, Alexander
Goldin, Tamara J
Goto, Kazuhisa
Grajales-Nishimura, Jose M
Grieve, Richard A. F
Gulick, Sean P. S
Johnson, Kirk R
Kiessling, Wolfgang
Koeberl, Christian
Kring, David A
MacLeod, Kenneth G
Matsui, Takafumi
Melosh, Jay
Montanari, Alessandro
Morgan, Joanna V
Neal, Clive R
Nichols, Douglas J
Norris, Richard D
Pierazzo, Elisabetta
Ravizza, Greg
Rebolledo-Vieyra, Mario
Reimold, Wolf Uwe
Robin, Eric
Salge, Tobias
Speijer, Robert
Sweet, Arthur R
Urrutia-Fucugauchi, Jaime
Vajda, Vivi
Whalen, Michael T
Willumsen, Pi S #
Issue Date: Mar-2010
Publisher: Amer assoc advancement science
Series Title: Science vol:327 issue:5970 pages:1214-1218
Abstract: The Cretaceous-Paleogene boundary similar to 65.5 million years ago marks one of the three largest mass extinctions in the past 500 million years. The extinction event coincided with a large asteroid impact at Chicxulub, Mexico, and occurred within the time of Deccan flood basalt volcanism in India. Here, we synthesize records of the global stratigraphy across this boundary to assess the proposed causes of the mass extinction. Notably, a single ejecta-rich deposit compositionally linked to the Chicxulub impact is globally distributed at the Cretaceous-Paleogene boundary. The temporal match between the ejecta layer and the onset of the extinctions and the agreement of ecological patterns in the fossil record with modeled environmental perturbations (for example, darkness and cooling) lead us to conclude that the Chicxulub impact triggered the mass extinction.
ISSN: 0036-8075
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
× corresponding author
# (joint) last author

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