Cenozoic tectonosedimentary evolution of the Linxia Basin, northeast Tibetan Plateau based on an analysis of detrital zircon provenance

doi:10.1016/j.palaeo.2023.111622

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	Cenozoic tectonosedimentary evolution of the Linxia Basin, northeast Tibetan Plateau based on an analysis of detrital zircon provenance
	He, Mengying 1,2; Zheng, Yan 3; Hu, Yun 1; Liu, Cheng 1
	2023-08-01
发表期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
卷号	623 页码:10
通讯作者	He, Mengying(conniehe@njnu.edu.cn)
摘要	The Linxia Basin is an important region for understanding the tectonism and uplift history in the northeast Tibetan Plateau, and also contains rich mammalian faunas of evolutionary significance. In this paper, we conduct a provenance study of Cenozoic sediments, relying primarily on U-Pb dating of detrital zircons, to investigate the exhumation history of surrounding terranes and to gain a better understanding of the relationship between tectonism, basin development and paleoenvironment.Samples were collected from the Maogou section in the central Linxia Basin, which has been recently dated by magnetostratigraphy. Detrital zircon populations show five U-Pb age groups of 65-350 Ma, 350-600 Ma, 600-1600 Ma, 1600-2200 Ma and 2200-2600 Ma; however, U-Pb age patterns varied up-section, indicating different sources at different times.Sediments from the lower part of the section (>27.8 Ma) were sourced from multiple regions, including the distal East Kunlun Shan, Qilian Shan, and Songpan-Ganzi terranes, and as well as the proximal West Qinling region. Contributions from the Songpan-Ganzi terrane increased considerably during the late Oligocene (27.8-23 Ma), as a result of strong tectonic movements of the northeastern Tibetan Plateau. During the early Miocene (23-17.2 Ma), the northern sources of the Laji Shan-Maxian Shan region supplied more sediments to the basin, indicating the uplift and exhumation of these mountain ranges. Until the middle Miocene (17.2-12.8 Ma), the Songpan-Ganzi terrane and the northern sources dominated the basin sediments, while the northern sources and the Jishi Shan region became increasingly important sources at around 11.6 Ma. This study explores the tectonosedimentary evolution of the Linxia Basin in the northeastern Tibetan Plateau, providing a reference for further research of the paleoclimate and mammalian evolution in this critical region.
关键词	Linxia Basin NE Tibetan Plateau Provenance study Detrital zirconU-Pb geochronology Cenozoic tectonosedimentary evolution
DOI	10.1016/j.palaeo.2023.111622
关键词[WOS]	QAIDAM BASIN ; TECTONIC EVOLUTION ; TOPOGRAPHIC GROWTH ; SEDIMENTARY-ROCKS ; ISOTOPE EVIDENCE ; SONGPAN-GANZI ; XINING BASIN ; U-PB ; CONSTRAINTS ; MAGNETOSTRATIGRAPHY
收录类别	SCI
语种	英语
资助项目	Key Project of Frontier Science Research of the Chinese Academy of Sciences[41991323] ; National Natural Science Foundation of China (NSFC)[41974079] ; National Natural Science Foundation of China (NSFC)[U1902208] ; [QYZDY-SSW-DQC002]
项目资助者	Key Project of Frontier Science Research of the Chinese Academy of Sciences ; National Natural Science Foundation of China (NSFC)
WOS研究方向	Physical Geography ; Geology ; Paleontology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS记录号	WOS:001053754600001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22904
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	He, Mengying
作者单位	1.Nanjing Normal Univ, Sch Geog Sci, 1 Wenyuan Rd, Nanjing 210046, Peoples R China 2.Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Nanjing 210023, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	He, Mengying,Zheng, Yan,Hu, Yun,et al. Cenozoic tectonosedimentary evolution of the Linxia Basin, northeast Tibetan Plateau based on an analysis of detrital zircon provenance[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,623:10.
APA	He, Mengying,Zheng, Yan,Hu, Yun,&Liu, Cheng.(2023).Cenozoic tectonosedimentary evolution of the Linxia Basin, northeast Tibetan Plateau based on an analysis of detrital zircon provenance.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,623,10.
MLA	He, Mengying,et al."Cenozoic tectonosedimentary evolution of the Linxia Basin, northeast Tibetan Plateau based on an analysis of detrital zircon provenance".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 623(2023):10.