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Geochemical characteristics of the fine-grained component of surficial deposits from dust source areas in northwestern China
Wang, Xunming1,2; Hua, Ting3; Zhu, Bingqi1; Lang, Lili1; Zhang, Caixia3
2018-10-01
Source PublicationAEOLIAN RESEARCH
ISSN1875-9637
Volume34Pages:18-26
Corresponding AuthorWang, Xunming(xunming@igsnrr.ac.cn)
AbstractIdentifying the geochemical characteristics of the surface fine-grained sediments in the mid-latitude deserts of Asia is essential for interpreting and tracing the aeolian sediments deposited in the far-away regions. The geochemical characteristics of ground surface fine-grained deposits (fractions < 63 pin in diameter) at five potential dust source areas (gobi deserts) of northwestern China, including the northern Qinghai-Tibet Plateau, the Tarim Basin, the Turpan-Hami Basin, the Hexi Corridor, and the Ala Shan Plateau, were investigated. The analytical results show that there are significant spatial differences in the geochemical characteristics among these regions. Geographically, the high contents of P, Ti, La, Ce, and Nd in the Tarim Basin, Mn, Co, Cu, Zn, Ga, Sr, Pb, and CaO in the Turpan-Hami Basin, Rb, Ba, Al2O3, Na2O, and K2O in the Hexi Corridor, and V, Cr, Ni, As, Y, Zr, Nb, SiO2, Fe2O3, and MgO in the Ala Shan Plateau, are identified. The spatial differences in the geochemical characteristics may be integrated signatures resulted from the differences in the fine-grained sediments' formation, provenance, transportation, and deposition dynamics related to the local geologic and climatic settings. These mixed signatures in compositions may result in deviations in interpreting aeolian deposits far from the source regions, and consequently, affect their environmental implications as the proxies used in the past climate reconstructions.
KeywordDust aerosol source area Surface fine-grained deposits Geochemistry Northwestern China
DOI10.1016/j.aeolia.2018.07.004
WOS KeywordATMOSPHERIC MINERAL DUST ; PAST 8 MA ; ASIAN DUST ; NORTHERN CHINA ; TAKLIMAKAN DESERT ; TIBETAN PLATEAU ; EOLIAN DEPOSITS ; LOESS PLATEAU ; ISOTOPIC CHARACTERISTICS ; PROVENANCE CHANGE
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFA0601900] ; Key Frontier Program of Chinese Academy of Sciences[QYZDJ-SSW-DQC043] ; National Natural Science Foundation of China[41771012]
Funding OrganizationNational Key Research and Development Program of China ; Key Frontier Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
WOS Research AreaPhysical Geography
WOS SubjectGeography, Physical
WOS IDWOS:000445984800002
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/52862
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Xunming
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Desert & Desertificat Cold & Arid Reg, Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xunming,Hua, Ting,Zhu, Bingqi,et al. Geochemical characteristics of the fine-grained component of surficial deposits from dust source areas in northwestern China[J]. AEOLIAN RESEARCH,2018,34:18-26.
APA Wang, Xunming,Hua, Ting,Zhu, Bingqi,Lang, Lili,&Zhang, Caixia.(2018).Geochemical characteristics of the fine-grained component of surficial deposits from dust source areas in northwestern China.AEOLIAN RESEARCH,34,18-26.
MLA Wang, Xunming,et al."Geochemical characteristics of the fine-grained component of surficial deposits from dust source areas in northwestern China".AEOLIAN RESEARCH 34(2018):18-26.
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