气候变化领域集成服务门户(CCPortal): U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction

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DOI	10.1126/science.aau2422
	U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction
	Schoene B.; Eddy M.P.; Samperton K.M.; Keller C.B.; Keller G.; Adatte T.; Khadri S.F.R.
发表日期	2019
ISSN	0036-8075
起始页码	862
结束页码	866
卷号	363 期号:6429
英文摘要	Temporal correlation between some continental flood basalt eruptions and mass extinctions has been proposed to indicate causality, with eruptive volatile release driving environmental degradation and extinction. We tested this model for the Deccan Traps flood basalt province, which, along with the Chicxulub bolide impact, is implicated in the Cretaceous-Paleogene (K-Pg) extinction approximately 66 million years ago. We estimated Deccan eruption rates with uranium-lead (U-Pb) zircon geochronology and resolved four high-volume eruptive periods. According to this model, maximum eruption rates occurred before and after the K-Pg extinction, with one such pulse initiating tens of thousands of years prior to both the bolide impact and extinction. These findings support extinction models that incorporate both catastrophic events as drivers of environmental deterioration associated with the K-Pg extinction and its aftermath. © The Authors, some rights reserved.
英文关键词	lead; uranium; zirconium; catastrophic event; Cretaceous; Cretaceous-Paleogene boundary; Deccan Traps; environmental degradation; flood basalt; geochronology; mass extinction; uranium-lead dating; Article; basalt; bolide impact; Chicxulub impact; chronology; degradation; disaster; end Cretaceous mass extinction; environmental impact; environmental parameters; eruption rate; geographic origin; India; priority journal; volcano
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/245388
作者单位	Department of Geosciences, Princeton University, Princeton, NJ, United States; Nuclear and Chemical Sciences Division, Lawrence Livermore National Laboratory, Livermore, CA, United States; Berkeley Geochronology Center, Berkeley, CA, United States; ISTE, Institut des Sciences de la Terre, Université de Lausanne, GEOPOLIS, Lausanne, Switzerland; Department of Geology, Amravati University, Amravati, India
推荐引用方式 GB/T 7714	Schoene B.,Eddy M.P.,Samperton K.M.,et al. U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction[J],2019,363(6429).
APA	Schoene B..,Eddy M.P..,Samperton K.M..,Keller C.B..,Keller G..,...&Khadri S.F.R..(2019).U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction.Science,363(6429).
MLA	Schoene B.,et al."U-Pb constraints on pulsed eruption of the Deccan Traps across the end-Cretaceous mass extinction".Science 363.6429(2019).