Provenance analysis of the Yumen Basin and northern Qilian Shan: Implications for the pre-collisional paleogeography in the NE Tibetan plateau and eastern termination of Altyn Tagh fault

doi:10.1016/j.gr.2018.08.009

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	Provenance analysis of the Yumen Basin and northern Qilian Shan: Implications for the pre-collisional paleogeography in the NE Tibetan plateau and eastern termination of Altyn Tagh fault
	Cheng, Feng 1,2; Garzione, Carmala 1; Jolivet, Marc 3; Wang, Weitao 4; Dong, Jibao 2; Richter, Fabiana 1; Guo, Zhaojie 5
通讯作者	Cheng, Feng(fcheng5@ur.rochester.edu)
	2019
发表期刊	GONDWANA RESEARCH
ISSN	1342-937X
卷号	65 页码:156-171
摘要	Understanding the pre-collisional paleogeography in the NE Tibetan plateau provides insights into the growth mechanisms of the northern portion of the plateau in the Cenozoic. We conducted sandstone petrography analysis and determined U-Pb ages for detrital zircons from Cretaceous sandstone from the Yumen Basin and the northern Qilian Shan. Cretaceous strata in the northern Yumen Basin yield a unimodal age population at 290-240 Ma that indicates primary derivation from Bei Shan. Cretaceous strata in the westernmost Yumen Basin contain zircons of 2.6-2.2 Ga, 2.1-1.7 Ga, 1.4-0.7 Ga, 440-380 Ma and 300-230 Ma, suggesting source derivation from both the Qilian Shan and Bei Shan. Within the northern Qilian Shan, Cretaceous strata yield age populations of 2.8-2.3 Ga, 2.1-1.2 Ga. 480-380 Ma and ca. 270 Ma, indicating derivation from the Qilian Shan. Sandstone composition results show that a sample from the northern Qilian Shan contains more lithic fragments and plots in the recycled orogen field of the quartz-feldspar-lithics (QFL) diagram, while samples from Yumen Basin are more quartz-rich and plot close to the continental block field of the QFL diagram. This compositional difference corresponds to source variation, consistent with the detrital zircon record. Combined with existing sedimentology and low-temperature thermochronology datasets, we suggest the presence of Cretaceous topographic relief in the Bei Shan and Qilian Shan prior to India-Asia collision. Considering >300 km post-Cretaceous left-lateral offset along the Altyn Tagh Fault (ATE) and the consistently similar detrital zircon ages spectra of the samples from the Cretaceous to late Oligocene strata in the Yumen Basin, we infer the paleogeography in the NE Tibetan plateau has been similar from the late Cretaceous to the late Oligocene with ATF termination in the western Yumen Basin instead of having been linked to strike-slip faults in the Alxa or other regions to the east since its initiation. (C) 2018 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
关键词	Detrital zircon geochronology Sandstone petrography Northeastern Tibetan plateau Altyn Tagh Fault Cretaceous paleogeography
DOI	10.1016/j.gr.2018.08.009
关键词[WOS]	APATITE FISSION-TRACK ; U-PB GEOCHRONOLOGY ; DETRITAL-ZIRCON GEOCHRONOLOGY ; WESTERN HEXI CORRIDOR ; QUATERNARY SLIP RATES ; NW CHINA CONSTRAINTS ; HOH XIL BASIN ; NORTHWEST CHINA ; TECTONIC EVOLUTION ; OROGENIC BELT
收录类别	SCI ; SCI
语种	英语
资助项目	National Science Foundation[EAR-1348005] ; National Science Foundation[OISE-1545859] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences[SKLLQG1701] ; National Science and Technology Major Project of China[2017ZX05008-001]
WOS研究方向	Geology
项目资助者	National Science Foundation ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences ; National Science and Technology Major Project of China
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000468246700010
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：46[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13908
专题	加速器质谱中心
通讯作者	Cheng, Feng
作者单位	1.Univ Rochester, Dept Earth & Environm Sci, Rochester, NY 14627 USA 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China 3.Univ Rennes 1, CNRS, UMR6118, Observ Sci Univers,Lab Geosci Rennes, F-35042 Rennes, France 4.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Minist Educ, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Feng,Garzione, Carmala,Jolivet, Marc,et al. Provenance analysis of the Yumen Basin and northern Qilian Shan: Implications for the pre-collisional paleogeography in the NE Tibetan plateau and eastern termination of Altyn Tagh fault[J]. GONDWANA RESEARCH,2019,65:156-171.
APA	Cheng, Feng.,Garzione, Carmala.,Jolivet, Marc.,Wang, Weitao.,Dong, Jibao.,...&Guo, Zhaojie.(2019).Provenance analysis of the Yumen Basin and northern Qilian Shan: Implications for the pre-collisional paleogeography in the NE Tibetan plateau and eastern termination of Altyn Tagh fault.GONDWANA RESEARCH,65,156-171.
MLA	Cheng, Feng,et al."Provenance analysis of the Yumen Basin and northern Qilian Shan: Implications for the pre-collisional paleogeography in the NE Tibetan plateau and eastern termination of Altyn Tagh fault".GONDWANA RESEARCH 65(2019):156-171.