Deep seismic reflection profiling in the Songpan-west Qinling-Linxia basin of the Qinghai-Tibet plateau: data acquisition, data processing and preliminary interpretations

doi:10.6038/cjg20140510

	Deep seismic reflection profiling in the Songpan-west Qinling-Linxia basin of the Qinghai-Tibet plateau: data acquisition, data processing and preliminary interpretations
	Wang Hai-Yan 10; Gao Rui ; Li Qiu-Sheng ; Li Wen-Hui ; Hou He-Sheng ; Kuang Chao-Yang ; Xue Ai-Min ; Huang Wei-Yi
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2014
卷号	57 期号:5 页码:1451-1461
关键词	Deep seismic reflection profile Qinghai-Tibet Plateau Songpan Block West Qinling Linxia Basin Data acquisition and processing Lithosphere structure
ISSN号	0001-5733
DOI	10.6038/cjg20140510
英文摘要	Subduction of the Indian plate underneath the Eurasian plate results in continuous uplift of the Qinghai-Tibet Plateau, whose formation not only led to tectonic deformation of the Asian continent in the late Cenozoic, but also affects landscape patterns of its peripheral areas. The northeast margin of Qinghai Tibet Plateau is the front position where the Qinghai Tibet plateau grows northeastward, and is also an important place of conversion where the India and Eurasia plate collision changes its direction from nearly north-south to northeast and east. In this study, we used deep seismic reflection profiles completed in 2004 and 2008, respectively. We spliced original shot gathers and used some key processing techniques and parameters to obtain a 400 km-long reliable section. This section reveals overall crustal structure and deformation style of the West Qinling orogenic belt and basins on its both sides. The results display the deep tectonic characteristics about the West Qin ling orogenic thrust-napping toward the Ruoergai basin. The north-dipping and south-dipping strong reflections. in the lower crust of the West Qin ling and its south are considered as reflective patterns of the Yangtze and North China plate convergence under the West Qin ling orogenic. Moho geometry and depth indicate the northeast margin of the Tibetan Plateau has experienced intense extension and thinning after the plateau strongly uplifted.
学科主题	固体地球物理学
WOS关键词	NORTHEASTERN MARGIN ; CONTINENTAL DEFORMATION ; VELOCITY STRUCTURE ; HAIYUAN FAULT ; UPPER-MANTLE ; SLIP RATES ; ASIA ; EVOLUTION ; CHINA ; TECTONICS
WOS研究方向	Geochemistry & Geophysics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000336701200010
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40558]
专题	中国地质科学院地质研究所
作者单位	1.[Wang Hai-Yan 2.Gao Rui 3.Li Qiu-Sheng 4.Li Wen-Hui 5.CAGS, Inst Geol, Lithosphere Res Ctr, Beijing 100037, Peoples R China 6.PRC, MLR, Key Lab Earth Probe & Geodynam, Beijing 100037, Peoples R China 7.[Kuang Chao-Yang 8.Huadong Petr Bur, SINOPEC, Geophys Explorat Div 6, Nanjing 210009, Jiangsu, Peoples R China 9.Beijing Petrosound Geoserv Ltd, Beijing 100016, Peoples R China 10.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Wang Hai-Yan,Gao Rui,Li Qiu-Sheng,et al. Deep seismic reflection profiling in the Songpan-west Qinling-Linxia basin of the Qinghai-Tibet plateau: data acquisition, data processing and preliminary interpretations[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(5):1451-1461.
APA	Wang Hai-Yan.,Gao Rui.,Li Qiu-Sheng.,Li Wen-Hui.,Hou He-Sheng.,...&Huang Wei-Yi.(2014).Deep seismic reflection profiling in the Songpan-west Qinling-Linxia basin of the Qinghai-Tibet plateau: data acquisition, data processing and preliminary interpretations.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(5),1451-1461.
MLA	Wang Hai-Yan,et al."Deep seismic reflection profiling in the Songpan-west Qinling-Linxia basin of the Qinghai-Tibet plateau: data acquisition, data processing and preliminary interpretations".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.5(2014):1451-1461.