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DOI	10.1073/pnas.2006087117
	Asteroid impact; not volcanism; caused the end-Cretaceous dinosaur extinction
	Chiarenza A.A.; Farnsworth A.; Mannion P.D.; Lunt D.J.; Valdes P.J.; Morgan J.V.; Allison P.A.
发表日期	2020
ISSN	0027-8424
起始页码	17084
结束页码	17093
卷号	117 期号:29
英文摘要	The Cretaceous/Paleogene mass extinction, 66 Ma, included the demise of non-avian dinosaurs. Intense debate has focused on the relative roles of Deccan volcanism and the Chicxulub asteroid impact as kill mechanisms for this event. Here, we combine fossil-occurrence data with paleoclimate and habitat suitability models to evaluate dinosaur habitability in the wake of various asteroid impact and Deccan volcanism scenarios. Asteroid impact models generate a prolonged cold winter that suppresses potential global dinosaur habitats. Conversely, long-term forcing from Deccan volcanism (carbon dioxide [CO2]-induced warming) leads to increased habitat suitability. Short-term (aerosol cooling) volcanism still allows equatorial habitability. These results support the asteroid impact as the main driver of the non-avian dinosaur extinction. By contrast, induced warming from volcanism mitigated the most extreme effects of asteroid impact, potentially reducing the extinction severity. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Chicxulub; Deccan; Dinosauria; End-Cretaceous; Extinction
语种	英语
scopus关键词	carbon dioxide; Article; astronomy; controlled study; cooling; dinosaur; end Cretaceous mass extinction; environmental impact; environmental impact assessment; nonhuman; paleoclimate; priority journal; seasonal variation; warming; animal; biological model; climate; dinosaur; fossil; history; India; Mexico; paleontology; species extinction; volcano; Animals; Carbon Dioxide; Climate; Dinosaurs; Extinction, Biological; Fossils; History, Ancient; India; Mexico; Minor Planets; Models, Biological; Paleontology; Volcanic Eruptions
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160881
作者单位	Chiarenza, A.A., Department of Earth Science and Engineering, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom, Department of Earth Sciences, University College London, London, WC1E 6BT, United Kingdom; Farnsworth, A., School of Geographical Sciences, University of Bristol, Bristol, BS8 1TH, United Kingdom; Mannion, P.D., Department of Earth Sciences, University College London, London, WC1E 6BT, United Kingdom; Lunt, D.J., School of Geographical Sciences, University of Bristol, Bristol, BS8 1TH, United Kingdom; Valdes, P.J., School of Geographical Sciences, University of Bristol, Bristol, BS8 1TH, United Kingdom; Morgan, J.V., Department of Earth Science and Engineering, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom; Allison, P.A., Department of Earth Science and Engineering, Imperial College London, South Kensington, London, SW7 2AZ, United Kingdom
推荐引用方式 GB/T 7714	Chiarenza A.A.,Farnsworth A.,Mannion P.D.,et al. Asteroid impact; not volcanism; caused the end-Cretaceous dinosaur extinction[J],2020,117(29).
APA	Chiarenza A.A..,Farnsworth A..,Mannion P.D..,Lunt D.J..,Valdes P.J..,...&Allison P.A..(2020).Asteroid impact; not volcanism; caused the end-Cretaceous dinosaur extinction.Proceedings of the National Academy of Sciences of the United States of America,117(29).
MLA	Chiarenza A.A.,et al."Asteroid impact; not volcanism; caused the end-Cretaceous dinosaur extinction".Proceedings of the National Academy of Sciences of the United States of America 117.29(2020).