气候变化领域集成服务门户(CCPortal): Amagmatic Subduction Produced by Mantle Serpentinization and Oceanic Crust Delamination

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DOI	10.1029/2019GL086257
	Amagmatic Subduction Produced by Mantle Serpentinization and Oceanic Crust Delamination
	Yang J.; Lu G.; Liu T.; Li Y.; Wang K.; Wang X.; Sun B.; Faccenda M.; Zhao L.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:9
英文摘要	Recycling of oceanic lithosphere and serpentinized peridotites into the mantle leads to dehydration melting and volcanic arcs. However, the mechanism of the occurrence of long-term volcanic gap in subduction zones remains poorly understood. Two-dimensional thermomechanical numerical models focusing on resisting the transport of the major hosts of hydrous minerals to mantle depths, show that thin oceanic crust together with rheologically weak and buoyant serpentinized mantle could result in hydrated lithologies piling up in the accretionary wedge and no or sparse occurrence of arc magmatism. This scenario may occur during subduction of oceanic lithosphere formed at (ultra)slow-spreading margins characterized by thin crust and extensive mantle serpentinization, which is a plausible explanation for the “arc gaps” in the Alps and southern Tibet. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Accretionary wedge; Hydrous mineral; Oceanic lithosphere; Serpentinization; Serpentinized peridotites; Southern Tibet; Subduction zones; Thermomechanical numerical model; Volcanoes; accretionary prism; dehydration melting; hydrous mineral; magmatism; mantle; oceanic crust; oceanic lithosphere; seafloor spreading; serpentinization; subduction; Alps; China; Xizang
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/170395
作者单位	State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Dipartimento di Geoscienze, Università di Padova, Padua, Italy; Institute of Earth Science, University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Yang J.,Lu G.,Liu T.,et al. Amagmatic Subduction Produced by Mantle Serpentinization and Oceanic Crust Delamination[J],2020,47(9).
APA	Yang J..,Lu G..,Liu T..,Li Y..,Wang K..,...&Zhao L..(2020).Amagmatic Subduction Produced by Mantle Serpentinization and Oceanic Crust Delamination.Geophysical Research Letters,47(9).
MLA	Yang J.,et al."Amagmatic Subduction Produced by Mantle Serpentinization and Oceanic Crust Delamination".Geophysical Research Letters 47.9(2020).