气候变化领域集成服务门户(CCPortal): Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau

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DOI	10.1016/j.tecto.2018.04.021
	Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau
	Zhang, Tao; Fang, Xiaomin; Wang, Yadong; Song, Chunhui; Zhang, Weilin; Yan, Maodu; Han, Wenxia; Zhang, Dawen
通讯作者	Zhang, T (通讯作者)
发表日期	2018
ISSN	0040-1951
EISSN	1879-3266
起始页码	40
结束页码	56
卷号	737
英文摘要	The Altyn Tagh range (ATR) is the northern geological boundary of the Tibetan Plateau and plays a key role in accommodating its Cenozoic lithospheric deformation. However, knowledge of the structural style and age of uplift of the ATR is limited and controversial. The Qaidam Basin, in the southeast side of the ATR, provides an outstanding field laboratory for understanding the history and mechanisms of ATR growth. This study presents a detailed sedimentological analysis of a 1040-m-thick late Cenozoic (similar to 17-5.0 Ma) sedimentary sequence from the western Qaidam Basin, together with the analysis of sedimentological data from nearby boreholes and sections. Our aims were to determine the spatiotemporal evolution of the sedimentary sequences in the study area and to explore their response to late Cenozoic tectonic activity in the ATR. The results show three major intervals of the sedimentary characteristics in the study area: similar to > 17-16 Ma, 10 Ma and < 5 Ma, which are closely related to the development of unconformities and growth strata recorded by high-resolution seismic reflection profiles. Combining the results with a comprehensive provenance analysis and with published records of regional climate change and tectonic activity, we discuss the possible factors responsible for the variations in the sedimentary characteristics of the studied sections. We conclude that significant tectonic responses in the western Qaidam Basin during the late Cenozoic were caused by three stages of tectonic activity of the ATR, at similar to > 17-16 Ma, similar to 16-10 Ma and similar to 10 Ma, during which the ATR respectively experienced tectonic uplift, fast strike-slip motion and intense uplift.
关键词	RESOLUTION MAGNETO STRATIGRAPHY U-PB GEOCHRONOLOGY CLIMATE-CHANGE QILIAN SHAN EXHUMATION HISTORY QINGHAI PROVINCE EVOLUTION MODEL UPLIFT HISTORY MIDDLE MIOCENE HEXI CORRIDOR
英文关键词	Sedimentary records; Tectonic activity; Late Cenozoic; Altyn Tagh range; Qaidam Basin
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000435049400003
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/259289
推荐引用方式 GB/T 7714	Zhang, Tao,Fang, Xiaomin,Wang, Yadong,et al. Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,737.
APA	Zhang, Tao.,Fang, Xiaomin.,Wang, Yadong.,Song, Chunhui.,Zhang, Weilin.,...&Zhang, Dawen.(2018).Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau.TECTONOPHYSICS,737.
MLA	Zhang, Tao,et al."Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau".TECTONOPHYSICS 737(2018).