气候变化领域集成服务门户(CCPortal): Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province

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DOI	10.1038/s41467-021-26468-5
	Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province
	Thines J.E.; Ukstins I.A.; Wall C.; Schmitz M.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	The main phase of silicic volcanism from the Afro-Arabian large igneous province preserves some of the largest volcanic eruptions on Earth, with six units totaling >8,600 km3 dense rock equivalent (DRE). The large volumes of rapidly emplaced individual eruptions present a case study for examining the tempo of voluminous silicic magma generation and emplacement. Here were report high-precision 206Pb/238U zircon ages and show that the largest sequentially dated eruptions occurred within 48 ± 34 kyr (29.755 ± 0.023 Ma to 29.707 ± 0.025 Ma), yielding the highest known long-term volumetric extrusive rate of silicic volcanism on Earth. While these are the largest known sequential silicic supereruptions, they did not cause major global environmental change. We also provide a robust tie-point for calibration of the geomagnetic polarity timescale by integrating 40Ar/39Ar data with our 206Pb/238U ages to yield new constraints on the duration of the C11n.1r Subchron. © 2021, The Author(s).
语种	英语
scopus关键词	lead 206; radioisotope; unclassified drug; uranium 238; zirconium; calibration; emplacement; explosive volcanism; large igneous province; volcanism; age determination; Article; calibration; chronology; climate change; crystal; environmental change; geochemistry; geological time; laser ablation inductively coupled plasma mass spectrometry; morphology; rock; stratigraphy; volcano; volumetry; Yemen
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251326
作者单位	Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, United States; School of Environment, The University of Auckland, Private Bag 92 019, Auckland, New Zealand; Department of Geosciences, Boise State University, 1295 University Drive, Boise, ID 83706, United States
推荐引用方式 GB/T 7714	Thines J.E.,Ukstins I.A.,Wall C.,et al. Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province[J],2021,12(1).
APA	Thines J.E.,Ukstins I.A.,Wall C.,&Schmitz M..(2021).Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province.Nature Communications,12(1).
MLA	Thines J.E.,et al."Volumetric extrusive rates of silicic supereruptions from the Afro-Arabian large igneous province".Nature Communications 12.1(2021).