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DOI	10.1126/science.aaa0118
	U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction
	Schoene B.; Samperton K.M.; Eddy M.P.; Keller G.; Adatte T.; Bowring S.A.; Khadri S.F.R.; Gertsch B.
发表日期	2015
ISSN	0036-8075
起始页码	182
结束页码	184
卷号	347 期号:6218
英文摘要	The Chicxulub asteroid impact (Mexico) and the eruption of the massive Deccan volcanic province (India) are two proposed causes of the end-Cretaceous mass extinction, which includes the demise of nonavian dinosaurs. Despite widespread acceptance of the impact hypothesis, the lack of a high-resolution eruption timeline for the Deccan basalts has prevented full assessment of their relationship to the mass extinction. Here we apply uranium-lead (U-Pb) zircon geochronology to Deccan rocks and show that the main phase of eruptions initiated ∼250,000 years before the Cretaceous-Paleogene boundary and that >1.1 million cubic kilometers of basalt erupted in ∼750,000 years. Our results are consistent with the hypothesis that the Deccan Traps contributed to the latest Cretaceous environmental change and biologic turnover that culminated in the marine and terrestrial mass extinctions.
英文关键词	lead; uranium; zirconium; silicate; zirconium; climate variation; Cretaceous; Deccan Traps; dinosaur; geochronology; lead; mass extinction; Paleogene; uranium; volcanic eruption; zircon; Article; basalt; chronology; dinosaur; end Cretaceous mass extinction; environmental change; geography; greenhouse effect; marine species; mass extinction; priority journal; rock; terrestrial species; turnover time; animal; astronomy; species extinction; time; volcano; Bay of Campeche; Chicxulub Crater; Mexico [North America]; Yucatan; Dinosauria; Animals; Earth (Planet); Extinction, Biological; Lead; Silicates; Time Factors; Uranium; Volcanic Eruptions; Zirconium
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245389
作者单位	Department of Geosciences, Princeton University, Princeton, NJ 08540, United States; Department of Earth, Atmospheric, And Planetary Sciences, Cambridge, MA 02139, United States; Institut des Sciences de la Terre (ISTE), Université de Lausanne, GEOPOLIS, Lausanne, CH-1015, Switzerland; Department of Geology, Amravati University, Amravati, India
推荐引用方式 GB/T 7714	Schoene B.,Samperton K.M.,Eddy M.P.,et al. U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction[J],2015,347(6218).
APA	Schoene B..,Samperton K.M..,Eddy M.P..,Keller G..,Adatte T..,...&Gertsch B..(2015).U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction.Science,347(6218).
MLA	Schoene B.,et al."U-Pb geochronology of the Deccan Traps and relation to the end-Cretaceous mass extinction".Science 347.6218(2015).