气候变化领域集成服务门户(CCPortal): Cenozoic tectonic deformation and uplift of the South Tian Shan: Implications from magnetostratigraphy and balanced cross-section restoration of the Kuqa depression

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DOI	10.1016/j.tecto.2014.04.044
	Cenozoic tectonic deformation and uplift of the South Tian Shan: Implications from magnetostratigraphy and balanced cross-section restoration of the Kuqa depression
	Zhang, Tao; Fang, Xiaomin; Song, Chunhui; Appel, Erwin; Wang, Yadong
通讯作者	Fang, XM (通讯作者)
发表日期	2014
ISSN	0040-1951
EISSN	1879-3266
起始页码	172
结束页码	187
卷号	628
英文摘要	The collision of India with Eurasia has caused rejuvenated deformation and uplift of the remote Tian Shan intracontinental orogenic range and has led to deposition of thick Cenozoic sediments in its flank depressions. However, our knowledge when and how the range was deformed and uplifted is still limited. We carried out detailed tectonic investigations, seismostratigraphic analysis and paleomagnetic dating of the thrust-fold belt in the Kuqa depression at the southern Tian Shan flank. Combined with re-interpretation of other magnetostratigraphic results in the depression, we determined ages of major stratigraphic boundaries and constructed and restored the balanced cross-section across the depression. The results show that the total Cenozoic shortening along the cross section in the depression is similar to 13.95 km. Significant shortening began at similar to 36 Ma, accelerated since similar to 13 Ma and further increased two- to three-fold since 6.5 Ma, especially since similar to 2.6 Ma. This shortening process caused the development of the Kuqa thrust-fold system associated with the variation of the sedimentation rate, upward coarsening of sediments and a progressive development of growth strata. We therefore argue that significant deformation and uplift of the South Tian Shan began at similar to 36 Ma, becoming more evident since similar to 13 Ma, and culminating since similar to 6.5 Ma reaching its peak after similar to 2.6 Ma. (C) 2014 Elsevier B.V. All rights reserved.
关键词	CHINESE TIEN-SHAN DETRITAL ZIRCON GEOCHRONOLOGY DAY CRUSTAL DEFORMATION INDIA-ASIA COLLISION TARIM BASIN NW CHINA KUCHE DEPRESSION NORTHWEST CHINA WESTERN CHINA EASTERN TIANSHAN
英文关键词	Tian Shan; Deformation and uplift; Magnetostratigraphy; Balanced section; Kuqa depression
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000340333000011
来源期刊	TECTONOPHYSICS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258330
推荐引用方式 GB/T 7714	Zhang, Tao,Fang, Xiaomin,Song, Chunhui,et al. Cenozoic tectonic deformation and uplift of the South Tian Shan: Implications from magnetostratigraphy and balanced cross-section restoration of the Kuqa depression[J]. 中国科学院青藏高原研究所,2014,628.
APA	Zhang, Tao,Fang, Xiaomin,Song, Chunhui,Appel, Erwin,&Wang, Yadong.(2014).Cenozoic tectonic deformation and uplift of the South Tian Shan: Implications from magnetostratigraphy and balanced cross-section restoration of the Kuqa depression.TECTONOPHYSICS,628.
MLA	Zhang, Tao,et al."Cenozoic tectonic deformation and uplift of the South Tian Shan: Implications from magnetostratigraphy and balanced cross-section restoration of the Kuqa depression".TECTONOPHYSICS 628(2014).