气候变化领域集成服务门户(CCPortal): Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution

CCPortal

DOI	10.1111/1755-6724.15165
	Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution
	Zhao, Xiaochen; Zhao, Shaowei; Liu, Chiyang; Wang, Jianqiang; Huang, Lei; Niu, Yazhuo; Chen, Yingtao; Du, Fangpeng; Peng, Heng; Feng, Zeyi; Dong, Yingchun
发表日期	2024
ISSN	1000-9515
EISSN	1755-6724
英文摘要	The evolution and reforming history of the Cenozoic basins in the northeastern Tibetan Plateau (NETP) are significant for understanding the northeastward growth of the Tibetan Plateau. The sediments in these basins archived the spatial-temporal patterns of the surface uplift and deformation processes in response to remote effects of growth of the NETP. Here, we present an integrated provenance analysis of the Ningnan basin in the NETP to provide direct insights into the basin evolution and further constraints of the Tibetan Plateau's northeastward growth. In this study, the Cenozoic strata (the Sikouzi, Qingshuiying, Zhang'enpu and Ganhegou formations) in the Ningnan basin yield complex detrital zircon age distributions featured by predominant age populations at 200-360 Ma and 360-540 Ma with minor Precambrian ages. Detrital zircon U-Pb ages indicate that the southwestern Ordos Block, the western Qinling orogenic belt, and the eastern Qilian orogenic belt are primary source areas. Additionally, adjacent local paleo-uplifts (e.g., Xi-nanhuashan, Xiangshan, Liupan mountains.) also provided minor volumes of sediment. In addition, conglomerates and paleocurrent directions of the Sikouzi-Ganhegou formations exhibit an apparent change since the late Mocene, revealing an obvious provenance shift. The quantitatively determined mixing proportions of the surrounding source areas also reveals that the early source-to-sink system was replaced during the deposition of the Ganhegou Formation. Combined with previous studies, we suggest that the formation of the Ningnan basin was controlled by normal faults in extension setting and experienced continued sediment accumulation during the Qingshuiying-Zhang'enpu period; since the late Miocene, the significant provenance shift reflects the obvious northeastward growth of the NETP and led to the extinction of the Ningnan basin.
英文关键词	provenance; detrital zircon geochronology; Cenozoic; Ningnan basin; northeastern Tibetan Plateau
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001224654500001
来源期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/302235
作者单位	Xi'an University of Science & Technology; Chang'an University; Chang'an University; Northwest University Xi'an; China Geological Survey; Xi'an Center, China Geological Survey; Yanan University
推荐引用方式 GB/T 7714	Zhao, Xiaochen,Zhao, Shaowei,Liu, Chiyang,et al. Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution[J],2024.
APA	Zhao, Xiaochen.,Zhao, Shaowei.,Liu, Chiyang.,Wang, Jianqiang.,Huang, Lei.,...&Dong, Yingchun.(2024).Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution.ACTA GEOLOGICA SINICA-ENGLISH EDITION.
MLA	Zhao, Xiaochen,et al."Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution".ACTA GEOLOGICA SINICA-ENGLISH EDITION (2024).