Karamaili strike-slipping fault and deformational sequence since Late Plaeozoic in the northern Xinjiang

	Karamaili strike-slipping fault and deformational sequence since Late Plaeozoic in the northern Xinjiang
	Zhao Lei 1,2; Ji JianQing 1; Xu QinQin 1,3; Gong JunFeng 1; Tu JiYao 1; Wang JinDuo 4
刊名	ACTA PETROLOGICA SINICA
	2012-07-01
卷号	28 期号:7 页码:2257-2268
关键词	Late Paleozoic Strike-slip fault Karamaili Continental crust Northern Xinjiang
ISSN号	1000-0569
文献子类	Article
英文摘要	Large-scale strike-slip shearing is the primary style of continental deformation, so the development of the large-scale strike-slip fault indicates to a great extent the formation of continental crust with enough shear strength. As an important tectonic unit in the northern Xinjiang, Kalamaili tectonic belt used to be considered as a Paleozoic suture, though under dispute. The Karamaili strike-slip fault extends as an intermittent fault broken by late faulting on the remote sensing images. The fault is nearly perpendicular to the floor in the field with intensive and steep cleavages,as well as shown on the seismic profile. Flower structures are popularly revealed by cleavages in the geological section. The Carboniferous, Devonian strata and ophiolite were reconstructed strongly by shear faulting with phyllitization and mylonization. Subtension fracture in synpegmatite body and the direction of phacoidal siliceous sandstone indicate that the Karamaili strike-slip fault is a dextral shearing belt. Some evidences can used to infer that the Karamaili strike-slip fault was formed at the interval of 270 similar to 260Ma. We conclude that the Karamaili fault is a Late Paleozoic dextral strike-slip shearing fault. The Karamaili strike-slip shearing zone should be taken into consideration while it is considered to be a Late Paleozoic sutures in East Junggar basin. There are indications that there is a relative mature continent in northern Xinjiang since Permian due to large shearing zones dominate the tectonic evolution of an integrated continent. In the paper, different deformation sequence is also established on the basis of the intersected or cutting relationship of faults since Late Paleozoic.
WOS关键词	CENTRAL TIANSHAN BELT ; NW CHINA
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000306631600025
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84546]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhao Lei
作者单位	1.Peking Univ, Key Lab Orogen Belts & Crustal Evolut, MOE, Sch Earth & Space Sci, Beijing 100871, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Shengli Oil Field Co Ltd, China Petr & Chem Corp, Dongying 257022, Peoples R China
推荐引用方式 GB/T 7714	Zhao Lei,Ji JianQing,Xu QinQin,et al. Karamaili strike-slipping fault and deformational sequence since Late Plaeozoic in the northern Xinjiang[J]. ACTA PETROLOGICA SINICA,2012,28(7):2257-2268.
APA	Zhao Lei,Ji JianQing,Xu QinQin,Gong JunFeng,Tu JiYao,&Wang JinDuo.(2012).Karamaili strike-slipping fault and deformational sequence since Late Plaeozoic in the northern Xinjiang.ACTA PETROLOGICA SINICA,28(7),2257-2268.
MLA	Zhao Lei,et al."Karamaili strike-slipping fault and deformational sequence since Late Plaeozoic in the northern Xinjiang".ACTA PETROLOGICA SINICA 28.7(2012):2257-2268.