气候变化领域集成服务门户(CCPortal): Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle

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DOI	10.1126/science.abd0312
	Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle
	Wei S.S.; Shearer P.M.; Lithgow-Bertelloni C.; Stixrude L.; Tian D.
发表日期	2020
ISSN	0036-8075
起始页码	983
结束页码	987
卷号	370 期号:6519
英文摘要	The Hawaiian-Emperor seamount chain that includes the Hawaiian volcanoes was created by the Hawaiian mantle plume. Although the mantle plume hypothesis predicts an oceanic plateau produced by massive decompression melting during the initiation stage of the Hawaiian hot spot, the fate of this plateau is unclear. We discovered a megameter-scale portion of thickened oceanic crust in the uppermost lower mantle west of the Sea of Okhotsk by stacking seismic waveforms of SS precursors. We propose that this thick crust represents a major part of the oceanic plateau that was created by the Hawaiian plume head ~100 million years ago and subducted 20 million to 30 million years ago. Our discovery provides temporal and spatial clues of the early history of the Hawaiian plume for future plate reconstructions. © 2020 American Association for the Advancement of Science. All rights reserved.
英文关键词	decompression; lower mantle; mantle plume; melting; oceanic crust; reconstruction; seamount; seismic wave; subduction; submarine volcano; waveform analysis; article; decompression; melting point; plume; Sea of Okhotsk; volcano; waveform; Pacific Ocean; Sea of Okhotsk
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/245994
作者单位	Department of Earth and Environmental Sciences, Michigan State University, East Lansing, MI 48824, United States; Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, San diego, CA 92093, United States; Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095, United States
推荐引用方式 GB/T 7714	Wei S.S.,Shearer P.M.,Lithgow-Bertelloni C.,et al. Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle[J],2020,370(6519).
APA	Wei S.S.,Shearer P.M.,Lithgow-Bertelloni C.,Stixrude L.,&Tian D..(2020).Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle.Science,370(6519).
MLA	Wei S.S.,et al."Oceanic plateau of the Hawaiian mantle plume head subducted to the uppermost lower mantle".Science 370.6519(2020).