The Jurassic deformation in the Dabie Mountains and its tectonic;significances.

	The Jurassic deformation in the Dabie Mountains and its tectonic;significances.
	Dong, SW 4; Hu, JM ; Li, SZ ; Shi, W ; Gao, R ; Liu, XC ; Xue, HM
刊名	ACTA PETROLOGICA SINICA
	2005
卷号	21 期号:4 页码:1189-1194
关键词	Jurassic intra-continental orogen Dabie Mountains
ISSN号	1000-0569
英文摘要	It was widely accepted that the Dabie orogen underwent an ultrahigh-pressure metamorphism as a result of the Triassic collision between the North China and Yangtze continents. However, there has been much debate on the deformation within the orogen and tectonic setting during the Jurassic. The study on the folding of the pre-Jurassic strata and deep reflection seismic exploration in the foreland belt, the SE deformation of amphibolite facies in the high- and ultrahigh-pressure rocks, and the igneous records of 160 similar to 120 Ma in the orogen suggest that a strong orogeny took place in the Dabie Mountains in the middle Jurassic. The orogeny was related to the Yanshanian movement. Because the North China and Yangtze blocks have collided and formed an uniform continent in Triassic, the Jurassic deformation was of intra-continental origin. A separation of Jurassic deformation from the Triassic collisional process of the Dabie Mountains could reasonably explain the second exhumation of ultrahigh-pressure metamorphic rocks from the mantle-crust boundary to the upper crust, the genesis of migmatization at 150 Ma and magmatic activity at 130 similar to 120 Ma, and the offset of MOHO in the Dabie foreland belt.
学科主题	地层学与地史学
WOS关键词	ULTRAHIGH-PRESSURE OROGEN ; CRUSTAL STRUCTURE ; YANGTZE FORELAND ; EASTERN ; CHINA ; ZIRCON AGES ; THRUST BELT ; EXHUMATION ; COLLISION
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000232291300017
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38008]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China. 2.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China. 3.Ocean Univ Qingdao, Col Geosci, Qingdao 266003, Peoples R China. 4.中国地质科学院地质研究所
推荐引用方式 GB/T 7714	Dong, SW,Hu, JM,Li, SZ,et al. The Jurassic deformation in the Dabie Mountains and its tectonic;significances.[J]. ACTA PETROLOGICA SINICA,2005,21(4):1189-1194.
APA	Dong, SW.,Hu, JM.,Li, SZ.,Shi, W.,Gao, R.,...&Xue, HM.(2005).The Jurassic deformation in the Dabie Mountains and its tectonic;significances..ACTA PETROLOGICA SINICA,21(4),1189-1194.
MLA	Dong, SW,et al."The Jurassic deformation in the Dabie Mountains and its tectonic;significances.".ACTA PETROLOGICA SINICA 21.4(2005):1189-1194.