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<identifier>oai:HAL:hal-01639659v1</identifier>
<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Quantifying the release of climate-active gases by large meteorite impacts with a case study of Chicxulub.</title>
<creator>Artemieva, Natalia</creator>
<creator>Morgan, Joanna</creator>
<creator>Gulick, S.P.S.</creator>
<creator>Chenot, E.</creator>
<creator>Christeson, G.L.</creator>
<creator>Claeys, P.</creator>
<creator>Cockell, C.S.</creator>
<creator>Coolen, M.J.L.</creator>
<creator>Ferrière, L.</creator>
<creator>Gebhardt, C.</creator>
<creator>Goto, K.</creator>
<creator>Green, S.</creator>
<creator>Jones, H.</creator>
<creator>Kring, D.A.</creator>
<creator>Lofi, J.</creator>
<creator>Lowery, C.M.</creator>
<creator>Ocampo-Torres, R.</creator>
<creator>Perez-Cruz, L.</creator>
<creator>Pickersgill, A.E.</creator>
<creator>Poelchau, M.</creator>
<creator>Rae, A.S.P.</creator>
<creator>Rasmussen, C.</creator>
<creator>Rebolledo-Vieyra, M.</creator>
<creator>Riller, U.</creator>
<creator>Sato, H.</creator>
<creator>Smit, J.</creator>
<creator>Tikoo, S.M.</creator>
<creator>Tomioka, N.</creator>
<creator>Urrutia-Fucugauchi, J.</creator>
<creator>Whalen, M.T.</creator>
<creator>Wittmann, A.</creator>
<creator>Xiao, L.</creator>
<creator>Yamaguchi, K.E.</creator>
<creator>Zylberman, W.</creator>
<creator>Collins, G.S.</creator>
<creator>Bralower, T.J.</creator>
<contributor>Biogéosciences [Dijon] (BGS) ; Université de Bourgogne (UB) - AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES) ; Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Centre européen de recherche et d'enseignement de géosciences de l'environnement (CEREGE) ; Institut de Recherche pour le Développement (IRD) - Aix Marseille Université (AMU) - Collège de France (CdF) - Institut national des sciences de l'Univers (INSU - CNRS) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Funding from the International Ocean Discovery Program (IODP), the International Continental scientific Drilling Project (ICDP), NASA grant 15-EXO15_2-0054 and NERC grant NE/P005217/1.</contributor>
<description>9 pages</description>
<description>International audience</description>
<source>ISSN: 0094-8276</source>
<source>EISSN: 1944-8007</source>
<source>Geophysical Research Letters</source>
<publisher>American Geophysical Union</publisher>
<identifier>hal-01639659</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01639659</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01639659</source>
<source>Geophysical Research Letters, American Geophysical Union, 2017, 44 (20), pp.10180-10188. 〈http://onlinelibrary.wiley.com/doi/10.1002/2017GL074879/abstract〉. 〈10.1002/2017GL074879〉</source>
<identifier>DOI : 10.1002/2017GL074879</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1002/2017GL074879</relation>
<source>http://onlinelibrary.wiley.com/doi/10.1002/2017GL074879/abstract</source>
<language>en</language>
<subject>[SDU.STU] Sciences of the Universe [physics]/Earth Sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Potentially hazardous asteroids and comets have hit Earth throughout its history, with catastrophic consequences in the case of the Chicxulub impact. Here we reexamine one of the mechanisms that allow an impact to have a global effect—the release of climate-active gases from sedimentary rocks. We use the SOVA hydrocode and model ejected materials for a sufficient time after impact to quantify the volume of gases that reach high enough altitudes (> 25 km) to have global consequences. We vary impact angle, sediment thickness and porosity, water depth, and shock pressure for devolatilization and present the results in a dimensionless form so that the released gases can be estimated for any impact into a sedimentary target. Using new constraints on the Chicxulub impact angle and target composition, we estimate that 325 ± 130 Gt of sulfur and 425 ± 160 Gt CO2 were ejected and produced severe changes to the global climate.</description>
<date>2017-10-28</date>
</dc>
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