High-resolution late Pliocene-quaternary magnetostratigraphy of the Yinchuan Basin, NE Tibetan Plateau

doi:10.1016/j.quaint.2021.09.009

	High-resolution late Pliocene-quaternary magnetostratigraphy of the Yinchuan Basin, NE Tibetan Plateau
	Ma, Xuedong 5; Yin, Gongming 4; Wei, Chuanyi 4; Qiang, Xiaoke 3; Ma, Yuxue 5; Liu, Chunru 4; Zhao, Zhipeng 2; Gong, Liang 5; Wang, Libin 4; Ji, Hao 4
刊名	QUATERNARY INTERNATIONAL
	2022-01-10
卷号	607 页码:120-127
关键词	Northeastern Tibetan plateau Yinchuan basin Late pliocene-quaternary Fluvio-lacustrine sediment Magnetostratigraphy
ISSN号	1040-6182
DOI	10.1016/j.quaint.2021.09.009
通讯作者	Wei, Chuanyi(chuanyiwei@ies.ac.cn) ; Qiang, Xiaoke(qiangxk@loess.llqg.ac.cn)
英文摘要	The Yinchuan Basin, one of the most important basins in the area adjacent to the northeastern Tibetan Plateau, contains a continuous sequence of fluvio-lacustrine deposits, which makes it an ideal area to study the in-teractions between the Tibetan Plateau uplift, climate change, and geomorphological evolution. Here, a 1200-m -deep drill core (YNZK01) is described with an average recovery rate of 96% in the depo-center of the Yinchuan Basin to establish a high-resolution palaeoenvironmental and tectonic reconstruction. Stepwise alternating-field demagnetization results showed a stable and high-qualified remanent magnetization of the samples. The polarity sequences consisted of 8 normal and 8 reverse zones that correlate well with the geomagnetic polarity timescale. Magnetostratigraphic results date the entire YNZK01 core from 3.927 Ma to the present. The B/M boundary (0.781 Ma) is at a depth of 246.4 m while the M/G boundary (2.581 Ma) is at a depth of 863.4 m. The G/Gi boundary (3.596 Ma) is identified at 1117.8 m and the bottom of the core was extrapolated to 3.927 Ma (1201 m) with an average sedimentation rate of 863.4-1117.8 m. This high-resolution magnetostratigraphy record pro -vides a baseline chronological framework for further research and publications on the tectonic, paleoclimatic, and paleoenvironmental proxy data of the YNZK01 core in the Yinchuan Basin, NE Tibetan Plateau.
资助项目	Ningxia Geological Exploration[HZ20170040-I] ; project of Urban geological survey in the yinchuan metropolitan area[[2017] 320] ; National Natural Science Foundation of China[41772185] ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China, Earthquake Administration[IGCEA2015] ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China, Earthquake Administration[IGCEA1908]
WOS关键词	EVOLUTION ; UPLIFT ; PL02
WOS研究方向	Physical Geography ; Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000718035100006
资助机构	Ningxia Geological Exploration ; project of Urban geological survey in the yinchuan metropolitan area ; National Natural Science Foundation of China ; National Nonprofit Fundamental Research Grant of China, Institute of Geology, China, Earthquake Administration
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/17241]
专题	地球环境研究所_古环境研究室
通讯作者	Wei, Chuanyi; Qiang, Xiaoke
作者单位	1.China Univ Geosci, Inst Geophys & Geomat, Wuhan 430074, Hubei, Peoples R China 2.Geol Bur Ningxia Hui Autonomous Reg, Yinchuan 750021, Ningxia, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 4.China Earthquake Adm, State Key Lab Earthquake Dynam, Inst Geol, Beijing 100029, Peoples R China 5.Ningxia Inst Geol Survey, Yinchuan 750021, Ningxia, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xuedong,Yin, Gongming,Wei, Chuanyi,et al. High-resolution late Pliocene-quaternary magnetostratigraphy of the Yinchuan Basin, NE Tibetan Plateau[J]. QUATERNARY INTERNATIONAL,2022,607:120-127.
APA	Ma, Xuedong.,Yin, Gongming.,Wei, Chuanyi.,Qiang, Xiaoke.,Ma, Yuxue.,...&Li, Guoqing.(2022).High-resolution late Pliocene-quaternary magnetostratigraphy of the Yinchuan Basin, NE Tibetan Plateau.QUATERNARY INTERNATIONAL,607,120-127.
MLA	Ma, Xuedong,et al."High-resolution late Pliocene-quaternary magnetostratigraphy of the Yinchuan Basin, NE Tibetan Plateau".QUATERNARY INTERNATIONAL 607(2022):120-127.