Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources

ISL OpenIR > 青海盐湖研究所知识仓储

	Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources
	Zeng, Fangming1 ; Liang, Meiyan 2; Peng, Shuzhen 3; Yu, Dongmei1 ; Xiang, Shuyuan 4
	2015-10-01
发表期刊	JOURNAL OF EARTH SCIENCE
卷号	26 期号:5 页码:669-676
关键词	Eolian Deposits Qinghai-tibetan Plateau Sr-nd-pb Isotope Source Area
摘要	The Neogene eolian deposits in the Xining Basin are valuable archive for studying the evolution of the Asian monsoon system and geomorphic processes of Northwest China. The Neogene eolian deposits that paleomagnetically dated at about 14 Ma probably were sourced from the middle and west Qinghai-Tibetan Plateau (QTP) as indicated by elemental compositions and magnetic properties. This study provides the Sr-Nd-Pb isotopic ratios of different sediments (gravels from the river terraces, Neogene eolian deposits and Quaternary loess) in the Xining Basin. The results show that: (1) Sr-Nd isotopic compositions of terrace gravels are different from those of the Neogene and Quaternary eolian deposits, although the Nd isotope ratios of gravel on the 10th terrace (T10) and eolian deposits are similar. (2) Pb isotopic compositions of river gravels are obviously different from the eolian deposits in the Xining Basin. However, Pb isotopic compositions of eolian deposits in the basin are similar to those of eolian deposits in the central Chinese Loess Plateau. (3) Sr-Nd-Pb isotope results indicate that the Neogene eolian deposits in the Xining Basin were probably sourced from remote areas outside of the basin by long-distance transportation. The Qaidam Basin is probably an important source area for the eolian deposits in the Xining Basin.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6159
专题	青海盐湖研究所知识仓储盐湖地质与环境实验室
作者单位	1.Chinese Acad Sci, Key Lab Salt Lake Resources & Chem, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.China Univ Geosci, Sch Publ Adm, Wuhan 430074, Peoples R China 3.Taishan Univ, Sch Tourism Resources & Environm, Tai An 271021, Shandong, Peoples R China 4.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Fangming,Liang, Meiyan,Peng, Shuzhen,et al. Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources[J]. JOURNAL OF EARTH SCIENCE,2015,26(5):669-676.
APA	Zeng, Fangming,Liang, Meiyan,Peng, Shuzhen,Yu, Dongmei,&Xiang, Shuyuan.(2015).Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources.JOURNAL OF EARTH SCIENCE,26(5),669-676.
MLA	Zeng, Fangming,et al."Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources".JOURNAL OF EARTH SCIENCE 26.5(2015):669-676.