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The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary

Schulte, Peter (author)
Alegret, Laia (author)
Arenillas, Ignacio (author)
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Arz, Jose A. (author)
Barton, Penny J. (author)
Bown, Paul R. (author)
Bralower, Timothy J. (author)
Christeson, Gail L. (author)
Claeys, Philippe (author)
Cockell, Charles S. (author)
Collins, Gareth S. (author)
Deutsch, Alexander (author)
Goldin, Tamara J. (author)
Goto, Kazuhisa (author)
Grajales-Nishimura, Jose M. (author)
Grieve, Richard A. F. (author)
Gulick, Sean P. S. (author)
Johnson, Kirk R. (author)
Kiessling, Wolfgang (author)
Koeberl, Christian (author)
Kring, David A. (author)
MacLeod, Kenneth G. (author)
Matsui, Takafumi (author)
Melosh, Jay (author)
Montanari, Alessandro (author)
Morgan, Joanna V. (author)
Neal, Clive R. (author)
Nichols, Douglas J. (author)
Norris, Richard D. (author)
Pierazzo, Elisabetta (author)
Ravizza, Greg (author)
Rebolledo-Vieyra, Mario (author)
Reimold, Wolf Uwe (author)
Robin, Eric (author)
Salge, Tobias (author)
Speijer, Robert P. (author)
Sweet, Arthur R. (author)
Urrutia-Fucugauchi, Jaime (author)
Vajda, Vivi (author)
Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
Whalen, Michael T. (author)
Willumsen, Pi (author)
Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science
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 (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2010
2010
English.
In: Science. - : American Association for the Advancement of Science (AAAS). - 1095-9203 .- 0036-8075. ; 327:5970, s. 1214-1218
Related links:
http://dx.doi.org/10...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • 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.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geology (hsv//eng)

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