气候变化领域集成服务门户(CCPortal): On impact and volcanism across the Cretaceous-Paleogene boundary

CCPortal

DOI	10.1126/science.aay5055
	On impact and volcanism across the Cretaceous-Paleogene boundary
	Hull P.M.; Bornemann A.; Penman D.E.; Henehan M.J.; Norris R.D.; Wilson P.A.; Blum P.; Alegret L.; Batenburg S.J.; Bown P.R.; Bralower T.J.; Cournede C.; Deutsch A.; Donner B.; Friedrich O.; Jehle S.; Kim H.; Kroon D.; Lippert P.C.; Loroch D.; Moebius I.; Moriya K.; Peppe D.J.; Ravizza G.E.; Röhl U.; Schueth J.D.; Sepúlveda J.; Sexton P.F.; Sibert E.C.; Śliwińska K.K.; Summons R.E.; Thomas E.; Westerhold T.; Whiteside J.H.; Yamaguchi T.; Zachos J.C.
发表日期	2020
ISSN	0036-8075
起始页码	266
结束页码	272
卷号	367 期号:6475
英文摘要	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. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	carbon dioxide carbon dioxide carbon cycle carbon dioxide Cretaceous-Paleogene boundary flood basalt global warming mass extinction paleotemperature volcanism Article astronomy basalt bolide boundary layer carbon cycle confusion (uncertainty)cosmological phenomena end Cretaceous mass extinction environmental impact environmental temperature greenhouse effect paleoenvironment Paleogene priority journal sea volcanic outgassing volcanism carbon cycle Mexico species extinction theoretical model volcano Carbon Cycle Carbon Dioxide Extinction, Biological Global Warming Mexico Models, Theoretical Volcanic Eruptions
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133782
推荐引用方式 GB/T 7714	Hull P.M.,Bornemann A.,Penman D.E.,et al. On impact and volcanism across the Cretaceous-Paleogene boundary[J]. Science,2020,367(6475).
APA	Hull P.M..,Bornemann A..,Penman D.E..,Henehan M.J..,Norris R.D..,...&Zachos J.C..(2020).On impact and volcanism across the Cretaceous-Paleogene boundary.,367(6475).
MLA	Hull P.M.,et al."On impact and volcanism across the Cretaceous-Paleogene boundary".367.6475(2020).