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Sr-Nd-Pb Isotopic Compositions of the Neogene Eolian Deposits in the Xining Basin and Implications for Their Dust Sources
Zeng, Fangming1; Liang, Meiyan2; Peng, Shuzhen3; Yu, Dongmei1; Xiang, Shuyuan4
2015-10-01
发表期刊JOURNAL OF EARTH SCIENCE
卷号26期号:5页码:669-676
文章类型Article
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.
关键词Eolian Deposits Qinghai-tibetan Plateau Sr-nd-pb Isotope Source Area
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CHINESE LOESS PLATEAU ; NORTHEASTERN TIBETAN PLATEAU ; EAST-ASIAN DUST ; QAIDAM BASIN ; TECTONIC IMPLICATIONS ; SUMMER MONSOON ; NORTHERN CHINA ; MIDDLE MIOCENE ; PROVENANCE ; UPLIFT
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000362241100005
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
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
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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.
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