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Palaeoenvironmental implication of grain-size compositions of terrace deposits on the western Chinese Loess Plateau
Liu, Xingxing1; Sun, Youbin1,2; Vandenberghe, Jef3; Li, Ying1; An, Zhisheng1,2
2018-06-01
Source PublicationAEOLIAN RESEARCH
Volume32Issue:3Pages:202-209
SubtypeArticle
AbstractSedimentary sequences that developed on river terraces have been widely investigated to reconstruct high-resolution palaeoclimatic changes since the last deglaciation. However, frequent changes in sedimentary facies make palaeoenvironmental interpretation of grain-size variations relatively complicated. In this paper, we employed multiple grain-size parameters to discriminate the sedimentary characteristics of aeolian and fluvial facies in the Dadiwan (DDW) section on the western Chinese Loess Plateau. We found that wind and fluvial dynamics have quite different impacts on the grain-size compositions, with distinctive imprints on the distribution pattern. By using a lognormal distribution fitting approach, two major grain-size components sensitive to aeolian and fluvial processes, respectively, were distinguished from the grain-size compositions of the DDW terrace deposits. The fine grain-size component (GSC2) represents mixing of long-distance aeolian and short-distance fluvial inputs, whilst the coarse grain-size component (GSC3) is mainly transported by wind from short-distance sources. Thus GSC3 can be used to infer the wind intensity. Grain-size variations reveal that the wind intensity experienced a stepwise shift from large-amplitude variations during the last deglaciation to small-amplitude oscillations in the Holocene, corresponding well to climate changes from regional to global context.
KeywordChinese Loess Plateau Fluvio-aeolian Grain-size Compositions Aeolian And Fluvial Dynamics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.aeolia.2018.03.008
WOS KeywordASIAN WINTER MONSOON ; NORTH-CENTRAL CHINA ; LAKE-LEVEL CHANGES ; TIBETAN PLATEAU ; AEOLIAN DUST ; EAST-ASIA ; CULTURAL RESPONSE ; CLIMATIC EVENTS ; CORE SEDIMENTS ; LATE MIOCENE
Indexed BySCI
WOS Research AreaPhysical Geography
WOS SubjectGeography, Physical
WOS IDWOS:000434747400020
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5096
Collection古环境研究室
Corresponding AuthorSun, Youbin
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China
3.Vrije Univ Amsterdam, Inst Earth Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands
Recommended Citation
GB/T 7714
Liu, Xingxing,Sun, Youbin,Vandenberghe, Jef,et al. Palaeoenvironmental implication of grain-size compositions of terrace deposits on the western Chinese Loess Plateau[J]. AEOLIAN RESEARCH,2018,32(3):202-209.
APA Liu, Xingxing,Sun, Youbin,Vandenberghe, Jef,Li, Ying,&An, Zhisheng.(2018).Palaeoenvironmental implication of grain-size compositions of terrace deposits on the western Chinese Loess Plateau.AEOLIAN RESEARCH,32(3),202-209.
MLA Liu, Xingxing,et al."Palaeoenvironmental implication of grain-size compositions of terrace deposits on the western Chinese Loess Plateau".AEOLIAN RESEARCH 32.3(2018):202-209.
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