Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau

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
	Yan, MD (Yan, Maodu)1,2; Zhang, DW (Zhang, Dawen)1,2; Zhang, T (Zhang, Tao)1,2; Fang, XM (Fang, Xiaomin)1,2,3; Wang, YD (Wang, Yadong)4; Song, CH (Song, Chunhui)5,6; Zhang, WL (Zhang, Weilin)1,2; Han, WX (Han, Wenxia)7
刊名	TECTONOPHYSICS
	2018-07-10
卷号	737 期号:0 页码:40-56
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
ISSN号	0040-1951
DOI	10.1016/j.tecto.2018.04.021
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.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000435049400003
内容类型	期刊论文
源URL	[http://ir.itpcas.ac.cn/handle/131C11/8598]
专题	青藏高原研究所_图书馆
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China; 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Gansu Prov Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; 5.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China; 6.Lanzhou Univ, Key Lab Western Chinas Mineral Resources Gansu Pr, Lanzhou 730000, Gansu, Peoples R China; 7.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Qinghai, Peoples R China.
推荐引用方式 GB/T 7714	Yan, MD ,Zhang, DW ,Zhang, T ,et al. Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau[J]. TECTONOPHYSICS,2018,737(0):40-56.
APA	Yan, MD .,Zhang, DW .,Zhang, T .,Fang, XM .,Wang, YD .,...&Han, WX .(2018).Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau.TECTONOPHYSICS,737(0),40-56.
MLA	Yan, MD ,et al."Late Cenozoic tectonic activity of the Altyn Tagh range: Constraints from sedimentary records from the Western Qaidam Basin, NE Tibetan Plateau".TECTONOPHYSICS 737.0(2018):40-56.