Crustal structure of Gondwana- and Yangtze-typed blocks: An example by wide-angle seismic profile from Menglian to Malong in western Yunnan

doi:10.1360/03yd0547

	Crustal structure of Gondwana- and Yangtze-typed blocks: An example by wide-angle seismic profile from Menglian to Malong in western Yunnan
	Zhang, ZJ ; Bai, ZM ; Wang, CY ; Teng, JW ; Lu, QT ; Li, JL ; Sun, SX ; Wang, XZ
刊名	SCIENCE IN CHINA SERIES D-EARTH SCIENCES
	2005-11-01
卷号	48 期号:11 页码:1828-1836
关键词	Gondwana Blocks Yangtze Blocks Wide-angle Profile Crustal Structure Tectonic Setting
ISSN号	1006-9313
DOI	10.1360/03yd0547
文献子类	Article
英文摘要	The wide-angle seismic profile between Menglian and Malong crosses the Baoshan block (Gondwana-typed), and Simao and southwestern Yangtze blocks (Yangtze-typed). By interpreting the wide-angle seismic data, we obtained the seismic crust/upper mantle structure of P-wave velocities together with the seismic reflections of these three blocks, Changning-Menglian and Mojiang suture zones among the mentioned three blocks. Our interpreting results demonstrate that the P-wave crustal velocity of Simao block is slower than that of Baoshan and southwestern Yangtze block and the crustal thickness gradually thickens from the Baoshan block, Simao to southwestern Yangtze block. Crustal reflection patterns of these three blocks have distinct differences too. For the Gondwana-typed blocks, seismic reflections in the upper crust are well developed while in middle-lower crust they are very weak. The crustal reflections in the Yangtze block are very well developed. The crustal reflection patterns in Simao and southwestern Yangtze blocks are distinguishable. The average thickness of the crust in the studied area is about 40 km. And we make some discussions on the crustal thickening model of the three blocks in western Yunnan and tectonic setting of seismic developing and interaction of Gondwana and Yangtze blocks.
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000234318400002
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/65090]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, ZJ
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Seismol Bur, Inst Geophys, Beijing 100081, Peoples R China 3.Chinese Acad Geol Sci, Inst Deposit Resource, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Zhang, ZJ,Bai, ZM,Wang, CY,et al. Crustal structure of Gondwana- and Yangtze-typed blocks: An example by wide-angle seismic profile from Menglian to Malong in western Yunnan[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2005,48(11):1828-1836.
APA	Zhang, ZJ.,Bai, ZM.,Wang, CY.,Teng, JW.,Lu, QT.,...&Wang, XZ.(2005).Crustal structure of Gondwana- and Yangtze-typed blocks: An example by wide-angle seismic profile from Menglian to Malong in western Yunnan.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,48(11),1828-1836.
MLA	Zhang, ZJ,et al."Crustal structure of Gondwana- and Yangtze-typed blocks: An example by wide-angle seismic profile from Menglian to Malong in western Yunnan".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 48.11(2005):1828-1836.