Velocity structure of layered block and deep dynamic process in the lithosphere beneath the Yinshan orogenic belt and Ordos Basin

doi:10.3969/j.issn.0001-5733.2010.01.008

	Velocity structure of layered block and deep dynamic process in the lithosphere beneath the Yinshan orogenic belt and Ordos Basin
	Teng Ji-Wen 1; Wang Fu-Yun 2; Zhao Wen-Zhi 3; Zhang Yong-Qian 1; Zhang Xian-Kang 2; Yan Ya-Fen 1; Zhao Jin-Ren 2; Li Ming 3; Yang Hui 1; Zhang Hong-Shuang 1
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2010
卷号	53 期号:1 页码:67-85
关键词	Yinshan orogenic belt Ordos Basin Layer-block velocity structure in lithosphere Deep dynamic process
ISSN号	0001-5733
DOI	10.3969/j.issn.0001-5733.2010.01.008
文献子类	Article
英文摘要	The Yinshan orogenic Belt in the northern margin of Ordos Basin is not only a transition region between strong and weak tectonic activities, but also a basin/mountain coupling zone, so there are different deep dynamical processes in the orogenic belt and basin region. Based on the high resolution data from a wide-angle reflection and refraction seismic sounding, we get the fine lithospheric structure along the profile of Mandula-Ordos-Yulin-Yanchuan as long as 650 km. Some results are summarized as follows: 1. The crust thickness is about 40 to 45 km from south to north in the profile. The property of medium and structure are different in different tectonic units. Obvious differences exist in the velocity distribution, structure pattern, and interface undulation and attributes. The velocity is 8.0 similar to 8.1 km/s on the top layer of the upper mantle. 2. There are five deep and big faults in the profile, dividing the region into four tectonic units with obviously different crust-mantle structure beneath the Ordos Basin, the basin-mountain coupling belt, Yinshan orogenic belt, and Inner Mongolia tectonic area, which have respectively inherent deep processes and dynamic responses. Furthermore, we define the Bayan Obo fault between Yinshan and Inner Mongolia as the south boundary of Paleo-Asian Ocean. Subsequently, Yinshan orogenic belt and a good many metallic mineral resources were formed and frequent earthquakes happened. Therefore, the structure of the crust and mantle in this coupling region is quite complicated, and is divided into layers and blocks. Obviously, in the forming of mountains, basins rocks minerals and disasters, there are special deep process and dynamic mechanism.
WOS关键词	NORTH CHINA CRATON
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000274274500008
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71990]
专题	中国科学院地质与地球物理研究所
通讯作者	Teng Ji-Wen
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Earthquake Adm, Geophys Explorat Ctr, Zhengzhou 450002, Peoples R China 3.SINOPEC Res Inst Potroloum Explorat & Dev, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Teng Ji-Wen,Wang Fu-Yun,Zhao Wen-Zhi,et al. Velocity structure of layered block and deep dynamic process in the lithosphere beneath the Yinshan orogenic belt and Ordos Basin[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(1):67-85.
APA	Teng Ji-Wen.,Wang Fu-Yun.,Zhao Wen-Zhi.,Zhang Yong-Qian.,Zhang Xian-Kang.,...&Ruan Xiao-Min.(2010).Velocity structure of layered block and deep dynamic process in the lithosphere beneath the Yinshan orogenic belt and Ordos Basin.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(1),67-85.
MLA	Teng Ji-Wen,et al."Velocity structure of layered block and deep dynamic process in the lithosphere beneath the Yinshan orogenic belt and Ordos Basin".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.1(2010):67-85.