Structure of the mantle transition zone beneath the North China Craton

doi:10.1016/j.jseaes.2015.11.006

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Structure of the mantle transition zone beneath the North China Craton
	Si, Shaokun 1; Zheng, Yanpeng 2; Liu, Baohua 1; Tian, Xiaobo 3,4
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2016-02-01
卷号	116 页码:69-80
关键词	North China Craton Pacific plate subduction Receiver function Discontinuous thickening Mantle transition zone
DOI	10.1016/j.jseaes.2015.11.006
文献子类	Article
英文摘要	Detailed information on deep structural features can improve current understanding of lithospheric thinning and destruction of the North China Craton. In this study, we analyzed receiver functions (RFs) from teleseismic P waveforms recorded by 246 seismic stations beneath the North China Craton (NCC) to determine the topography of the mantle transition zone (MTZ). The results reveal specific features in the 410 and 660 km discontinuities and outlined MTZ thickness beneath the study area. The MTZ structure shows two anomalously thickened regions beneath the NCC (up to 30-40 km thicker than the global average), which are mainly concentrated in the eastern and western sections of the eastern NCC (ENCC). The thickened regions are discontinuous and separated by a distance of about 400 km. Double 660 km discontinuities also appear in the southeastern ENCC. Combining these results with previous findings, we propose a model in which MTZ thickening is caused by discrete remnants of the subducted western Pacific slab. Discontinuities resulting from the stagnant slabs may retain evidence of changes in the rate of Pacific plate subduction as well as the phase transition of the subducted slabs within the MTZ. (C) 2015 Elsevier Ltd. All rights reserved.
WOS关键词	VELOCITY STRUCTURE BENEATH ; JAPAN SUBDUCTION ZONE ; PHASE-TRANSFORMATIONS ; EARTHS MANTLE ; SYSTEM MG2SIO4-FE2SIO4 ; TOMOGRAPHIC-IMAGES ; EMPEROR SEAMOUNTS ; CONTINENTAL-CRUST ; SEISMIC STRUCTURE ; RECEIVER FUNCTION
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000369456000005
资助机构	National Natural Science Foundations of China(41274066 ; National Natural Science Foundations of China(41274066 ; China Postdoctoral Science Foundation(2015M582050) ; China Postdoctoral Science Foundation(2015M582050) ; 41330965 ; 41330965 ; 41504045) ; 41504045) ; National Natural Science Foundations of China(41274066 ; National Natural Science Foundations of China(41274066 ; China Postdoctoral Science Foundation(2015M582050) ; China Postdoctoral Science Foundation(2015M582050) ; 41330965 ; 41330965 ; 41504045) ; 41504045)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/62077]
专题	地质与地球物理研究所_岩石圈演化国家重点实验室
作者单位	1.State Ocean Adm, Natl Deep Sea Ctr, Qingdao 266061, Peoples R China 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Si, Shaokun,Zheng, Yanpeng,Liu, Baohua,et al. Structure of the mantle transition zone beneath the North China Craton[J]. JOURNAL OF ASIAN EARTH SCIENCES,2016,116:69-80.
APA	Si, Shaokun,Zheng, Yanpeng,Liu, Baohua,&Tian, Xiaobo.(2016).Structure of the mantle transition zone beneath the North China Craton.JOURNAL OF ASIAN EARTH SCIENCES,116,69-80.
MLA	Si, Shaokun,et al."Structure of the mantle transition zone beneath the North China Craton".JOURNAL OF ASIAN EARTH SCIENCES 116(2016):69-80.