气候变化领域集成服务门户(CCPortal): Destruction of Cratonic Lithosphere Induced by Oceanic Subduction Initiation

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DOI	10.1029/2020GL089140
	Destruction of Cratonic Lithosphere Induced by Oceanic Subduction Initiation
	Chen M.; Shen X.; Leng W.; Chen L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Based on the plate reconstruction which shows that most core parts of present cratons locate in the interior of the continents during the supercontinent cycles, we propose that the oceanic subduction initiation may trigger the destruction of marginal cratonic lithosphere. We develop a simplified force analysis for the destruction of subcontinental lithospheric mantle (SCLM) by the subduction initiation. Our analysis suggests three key parameters: the SCLM thickness, the contact angle between SCLM and oceanic plate, and the coefficient of friction of the SCLM. Our numerical models further support our analysis and demonstrate that a thicker SCLM with a larger contact angle is easier to be destructed by subduction initiation, and the yield strength of the SCLM has a significant impact on the spatial range of its destruction. Our results provide important insights into the parameters controlling cratonic lithospheric destruction and explain the distribution of preserved cratons in the interior of continental plates. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Friction; Oceanography; Coefficient of frictions; Force analysis; Oceanic plate; Oceanic subduction; Plate reconstruction; Sub-continental lithospheric mantles; Subduction initiation; Supercontinents; Contact angle; lithosphere; mantle; numerical model; subduction; subduction zone; supercontinent
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170031
作者单位	Laboratory of Seismology and Physics of Earth's Interior, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China; CAS Center for Excellence in Comparative Planetology, Hefei, China; State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Chen M.,Shen X.,Leng W.,et al. Destruction of Cratonic Lithosphere Induced by Oceanic Subduction Initiation[J],2020,47(15).
APA	Chen M.,Shen X.,Leng W.,&Chen L..(2020).Destruction of Cratonic Lithosphere Induced by Oceanic Subduction Initiation.Geophysical Research Letters,47(15).
MLA	Chen M.,et al."Destruction of Cratonic Lithosphere Induced by Oceanic Subduction Initiation".Geophysical Research Letters 47.15(2020).