Crust and uppermost mantle structure of the Ailaoshan-Red River fault from receiver function analysis

doi:10.1007/s11430-006-1043-8

	Crust and uppermost mantle structure of the Ailaoshan-Red River fault from receiver function analysis
	Xu Mingjie ; Wang Liangshu ; Liu Jianhua ; Zhong Kai ; Li Hua ; Hu Dezhao ; Xu Zhen
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2006-10-01
卷号	49 期号:10 页码:1043-1052
关键词	receiver function Ailaoshan-Red River fault velocity structure Poisson's ratio crust and upper mantle
ISSN号	1006-9313
DOI	10.1007/s11430-006-1043-8
文献子类	Article
英文摘要	S-wave velocity structure beneath the Ailaoshan-Red River fault was obtained from receiver functions by using teleseismic body wave records of broadband digital seismic stations. The average crustal thickness, V-p/V-s ratio and Poisson's ratio were also estimated. The results indicate that the interface of crust and mantle beneath the Ailaoshan-Red River fault is not a sharp velocity discontinuity but a characteristic transition zone. The velocity increases relatively fast at the depth of Moho and then increases slowly in the uppermost mantle. The average crustal thickness across the fault is 36-37 km on the southwest side and 40-42 km on the northeast side, indicating that the fault cuts the crust. The relatively high Poisson's ratio (0.26-0.28) of the crust implies a high content of mafic materials in the lower crust. Moreover, the lower crust with low velocity could be an ideal position for decoupling between the crust and upper mantle.
WOS关键词	S-WAVE VELOCITY ; POISSONS RATIO ; LITHOSPHERE BENEATH ; YUNNAN PROVINCE ; WESTERN CHINA ; DEFORMATION ; TOMOGRAPHY ; TECTONICS ; PLATEAU ; TIBET
WOS研究方向	Geology
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000242000600004
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66516]
专题	中国科学院地质与地球物理研究所
通讯作者	Xu Mingjie
作者单位	1.Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Xu Mingjie,Wang Liangshu,Liu Jianhua,et al. Crust and uppermost mantle structure of the Ailaoshan-Red River fault from receiver function analysis[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2006,49(10):1043-1052.
APA	Xu Mingjie.,Wang Liangshu.,Liu Jianhua.,Zhong Kai.,Li Hua.,...&Xu Zhen.(2006).Crust and uppermost mantle structure of the Ailaoshan-Red River fault from receiver function analysis.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,49(10),1043-1052.
MLA	Xu Mingjie,et al."Crust and uppermost mantle structure of the Ailaoshan-Red River fault from receiver function analysis".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 49.10(2006):1043-1052.