Features of crust and lithosphere velocity structures along the north-south tectonic belt and adjacent regions in China

doi:10.6038/cjg20141208

	Features of crust and lithosphere velocity structures along the north-south tectonic belt and adjacent regions in China
	Jiang Wei-Wei 1; Jiang Di-Di 1,2; Xu Yi 1; Hao Tian-Yao 1; Hu Wei-Jian 1; Yu Jing-Feng 1,2
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2014-12-01
卷号	57 期号:12 页码:3944-3956
关键词	North-South tectonic belt Crust Lithosphere velocity structure Seismic tomography
ISSN号	0001-5733
DOI	10.6038/cjg20141208
文献子类	Article
英文摘要	We conduct gravity data inversion using the Parker-Oldenburg method to calculate crustal thickness, and employ seismic tomography to research the three-dimensional velocity structure of the crust and mantle along the north-south tectonic zone in central China. According to results of calculation we attempt to reveal the crust and lithosphere structures and the deformation characteristics in the study area. Then we further discuss the deep causes of crust-mantle tectonic evolution in the Tibetan Plateau active zones, the upper mantle rheological property in the study area and its dynamics significance. Studies show that crustal thickness of the north-south tectonic belt is highly variable, with thickening crust in west, stable crust of Ordos Basin and Sichuan Basin in east, and thinning crust farther east. The boundary between thinning and thickening lithosphere is along the Da Hinggan Ling Mountains-Taihang Mountains-Qinling Mountains-Daba Mountains-Wuling Mountains. It is also the deep tectonic between the eastern continental margin zone and central Yangzi-Ordos Craton regions. Not only are the shallow geological structures different on both sides, but alos the physical properties and thermal activity in deep upper mantle are distinctly different. It indicates that, in the study area, the structure of lithosphere and asthenosphere and the distribution of deep material have lateral heterogeneity. The deep tectonic boundary between central regions and the Tibetan Plateau is roughly along 100-102 degrees E.
WOS关键词	UPPER-MANTLE ; TOMOGRAPHY ; BENEATH ; PLATEAU ; TIBET
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000347270700009
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/85732]
专题	中国科学院地质与地球物理研究所
通讯作者	Jiang Wei-Wei
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jiang Wei-Wei,Jiang Di-Di,Xu Yi,et al. Features of crust and lithosphere velocity structures along the north-south tectonic belt and adjacent regions in China[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(12):3944-3956.
APA	Jiang Wei-Wei,Jiang Di-Di,Xu Yi,Hao Tian-Yao,Hu Wei-Jian,&Yu Jing-Feng.(2014).Features of crust and lithosphere velocity structures along the north-south tectonic belt and adjacent regions in China.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(12),3944-3956.
MLA	Jiang Wei-Wei,et al."Features of crust and lithosphere velocity structures along the north-south tectonic belt and adjacent regions in China".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.12(2014):3944-3956.