Journal articles
On Impact and Volcanism across the Cretaceous-Paleogene Boundary
Pincelli Hull
1
André Bornemann
2
Donald Penman
1
Michael Henehan
3
Richard Norris
4
Paul Wilson
5
Peter Blum
6
Laia Alegret
7
Sietske J. Batenburg
8
Et Al.
Pincelli M. Hull 1
Author
André Bornemann 2
Author
Donald E. Penman 1
Author
Michael J. Henehan 3
Author
Sietske J. Batenburg 8
Author
Et Al.
Author
1
Yale University [New Haven] (157 Church Street, New Haven, CT 06510-2100 - United States)
2
BGR - Bundesanstalt für Geowissenschaften und Rohstoffe (Stilleweg 2, 30665 Hannover, Germany - Germany)
3
GFZ - German Research Centre for Geosciences - Helmholtz-Centre Potsdam (Telegrafenberg, 14473 Potsdam - Germany)
4
SIO - Scripps Institution of Oceanography (University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0208, U.S.A. - United States)
- UC San Diego - University of California [San Diego] (9500 Gilman Dr., La Jolla, CA 92093 USA - United States)
- University of California (United States)
5
NOC - National Oceanography Centre [Southampton] (Waterfront Campus, European Way, Southampton SO14 3ZH, United Kingdom - United Kingdom)
- University of Southampton (University Road, Southampton SO17 1BJ - United Kingdom)
6
International Ocean Discovery Program (College Station, TX - United States)
7
University of Zaragoza - Universidad de Zaragoza [Zaragoza] (Pedro Cerbuna,12
50009 Zaragoza - España - Spain)
8
GR - Géosciences Rennes (Bâtiment 15 - Université de Rennes 1 - Campus de Beaulieu -263 Av du général Leclerc- CS 74205 - 35042 Rennes Cedex - France - France)
- UR1 - Université de Rennes 1 (2 rue du Thabor - CS 46510 - 35065 Rennes cedex - France)
- UNIV-RENNES - Université de Rennes (France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- OSUR - Observatoire des Sciences de l'Univers de Rennes (263 avenue du Général Leclerc - 35042 Rennes cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6118 (France)
Abstract : The cause of the end-Cretaceous mass extinction is vigorously debated, owing to the occurrence of a very large bolide impact and flood basalt volcanism near the boundary. Disentangling their relative importance is complicated by uncertainty regarding kill mechanisms and the relative timing of volcanogenic outgassing, impact, and extinction. We used carbon cycle modeling and paleotemperature records to constrain the timing of volcanogenic outgassing. We found support for major outgassing beginning and ending distinctly before the impact, with only the impact coinciding with mass extinction and biologically amplified carbon cycle change. Our models show that these extinction-related carbon cycle changes would have allowed the ocean to absorb massive amounts of carbon dioxide, thus limiting the global warming otherwise expected from postextinction volcanism.
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-02440458
Contributor : Isabelle Dubigeon <>
Submitted on : Wednesday, January 15, 2020 - 10:59:51 AM
Last modification on : Thursday, March 5, 2020 - 9:45:43 AM
Contributor : Isabelle Dubigeon <>
Submitted on : Wednesday, January 15, 2020 - 10:59:51 AM
Last modification on : Thursday, March 5, 2020 - 9:45:43 AM
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- HAL Id : insu-02440458, version 1
- DOI : 10.1126/science.aay5055
- PUBMED : 31949074
Collections
INSU | GR | GR-PPDB | OSUR | UNIV-RENNES1 | UNIV-RENNES | CNRS
Citation
Pincelli Hull, André Bornemann, Donald Penman, Michael Henehan, Richard Norris, et al.. On Impact and Volcanism across the Cretaceous-Paleogene Boundary. Science, American Association for the Advancement of Science, 2020, 367 (6475), pp.266-272. ⟨10.1126/science.aay5055⟩. ⟨insu-02440458⟩
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