Tracing the provenance of aeolian loess in the Yangtze River Delta through zircon U-Pb age and geochemical investigations

doi:10.1007/s11629-017-4437-5

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2018 > Vol15 No.4

	Tracing the provenance of aeolian loess in the Yangtze River Delta through zircon U-Pb age and geochemical investigations
	Qian, Peng; Zheng, Xiang-min; Cheng, Jun; Han, Yu-jie; Dong, Yan; Zhang, Jian-guo
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2018
卷号	15 期号:4 页码:708-721
关键词	Aeolian loess Provenance tracing Zircon U-Pb age Geochemistry Yangtze River Delta
ISSN号	1672-6316
DOI	10.1007/s11629-017-4437-5
文献子类	Article
英文摘要	Given the conflicts over the proposed formation mechanisms of Xiashu loess, the question of the provenance of sediments comprising the Xiashu loess in the Yangtze River Delta has not been satisfactorily resolved. In this study, the provenance of aeolian sediments of the Yangtze River Delta, China was examined by applying the detrial zircon U-Pb dating technique, Sr-Nd isotopic and trace element compositional analysis. U-Pb dating analysis was conducted on the Xiashu loess at three locations over the Yangtze River Delta, including Huangnishan (HNS) hill, Shengshan (SS) island and the Xuancheng (XC) area. The Xiashu loess and the sediments of the Yangtze River Valley share considerable similarity in their zircon U-Pb age spectra with the same main age peak and comparable age distribution. By contrast, significant differences in the age spectra, exist between the Xiashu loess and loess deposits of Chinese Loess Plateau (CLP). Coarse grains of the Yangtze River Delta loess may have a proximal material source identical to the sediments from the Yangtze River valley. Sr-Nd isotopic values of the Xiashu loess match those from the northern margin of the Tibetan Plateau. Rare earth element ratios independent of grain size illustrate that the values from loess of the Yangtze River Delta mostly overlap with those of CLP loess. This feature implies that loess from the Yangtze River Delta has a dominant source of distant material similar as the CLP loess. As such, we conclude that multi-proxy analysis of sediments can shed new light on tracing the provenance of aeolian loess in the Yangtze River Delta.
电子版国际标准刊号	1993-0321
语种	英语
WOS记录号	WOS:000429949900003
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35416]
专题	Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.4
推荐引用方式 GB/T 7714	Qian, Peng,Zheng, Xiang-min,Cheng, Jun,et al. Tracing the provenance of aeolian loess in the Yangtze River Delta through zircon U-Pb age and geochemical investigations[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(4):708-721.
APA	Qian, Peng,Zheng, Xiang-min,Cheng, Jun,Han, Yu-jie,Dong, Yan,&Zhang, Jian-guo.(2018).Tracing the provenance of aeolian loess in the Yangtze River Delta through zircon U-Pb age and geochemical investigations.JOURNAL OF MOUNTAIN SCIENCE,15(4),708-721.
MLA	Qian, Peng,et al."Tracing the provenance of aeolian loess in the Yangtze River Delta through zircon U-Pb age and geochemical investigations".JOURNAL OF MOUNTAIN SCIENCE 15.4(2018):708-721.