气候变化领域集成服务门户(CCPortal): New paleomagnetic constraints on syntectonic growth strata in the western Qaidam Basin, NE Tibetan Plateau

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DOI	10.1016/j.tecto.2020.228401
	New paleomagnetic constraints on syntectonic growth strata in the western Qaidam Basin, NE Tibetan Plateau
	Zhang, Weilin; Appel, Erwin; Fang, Xiaomin; Setzer, Fabian; Song, Chunhui; Meng, Qingquan; Yan, Maodu
通讯作者	Zhang, WL (通讯作者)
发表日期	2020
ISSN	0040-1951
EISSN	1879-3266
卷号	780
英文摘要	Accompanied by crustal shortening and mountain uplift caused by the large-magnitude south-north directed shortening under the collision between India and Eurasia, syntectonic growth strata in the western Qaidam Basin document important information about intense intracontinental deformation of the NE Tibetan Plateau. To better address the development of the Qaidam basin and the propagation of the growth strata associated with multiple tectonic uplifts of the Tibetan Plateau, we conducted a detailed paleomagnetic study on the late-Neogene fluvio-lacustrine sedimentary sequence exposed at two outcrop sections and a drill core in the western Qaidam Basin, and integrated the results with previous magnetostratigraphic studies. Based on well-determined ages of the centers and limbs of the two anticlines, we found an episodic late Cenozoic crustal shortening in the center of the western Qaidam Basin, as evidenced by syntectonic offlap growth strata deposited beginning at similar to 3.2 Ma. Combined with data from sedimentary facies and seismic profiles, we suggest that offlap growth strata progressively became younger from southwest to northeast in the center of the western Qaidam Basin due to strong basinward propagation of the eastern Kunlun fault and quick short-lived pulses of multiple tectonic uplifts of the NE Tibetan Plateau.
关键词	CENOZOIC TECTONIC EVOLUTION ALTYN-TAGH FAULT CLIMATE-CHANGE DEFORMATION HISTORY SECTION RESTORATION NORTHERN TIBET LINXIA BASIN XINING BASIN THRUST BELT CORE SG-1
英文关键词	Paleomagnetism; Growth strata; Qaidam Basin; NE Tibetan Plateau
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000527366300006
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/259784
推荐引用方式 GB/T 7714	Zhang, Weilin,Appel, Erwin,Fang, Xiaomin,et al. New paleomagnetic constraints on syntectonic growth strata in the western Qaidam Basin, NE Tibetan Plateau[J]. 中国科学院青藏高原研究所,2020,780.
APA	Zhang, Weilin.,Appel, Erwin.,Fang, Xiaomin.,Setzer, Fabian.,Song, Chunhui.,...&Yan, Maodu.(2020).New paleomagnetic constraints on syntectonic growth strata in the western Qaidam Basin, NE Tibetan Plateau.TECTONOPHYSICS,780.
MLA	Zhang, Weilin,et al."New paleomagnetic constraints on syntectonic growth strata in the western Qaidam Basin, NE Tibetan Plateau".TECTONOPHYSICS 780(2020).