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Pronounced changes in paleo-wind direction and dust sources during MIS3b recorded in the Tacheng loess, northwest China
Cheng, Liangqing1,2,3; Song, Yougui1,2; Sun, Huanyu1; Bradak, Balazs4,5; Orozbaev, Rustam6,7; Zong, Xiulan1,2,3; Liu, Huifang1
Corresponding AuthorSong, Yougui(ygsong@loess.llqg.ac.cn)
2020-06-30
Source PublicationQUATERNARY INTERNATIONAL
ISSN1040-6182
Volume552Pages:122-134
AbstractCentral Asia loess deposits can yield detailed records of aridification across the Asian interior, as well as the atmospheric circulation. In this study, we presented grain size, heavy mineral assemblage, rock magnetism and anisotropy of magnetic susceptibility of a loess section in the Tacheng Basin in Xinjiang region, NW China. The results of anisotropy of magnetic susceptibility indicated that a near-surface SE wind prevailed in the Tacheng area since Marine Isotope Stage (MIS) 3, while a near-surface SW prevailing wind developed during MIS3b. We inferred that the change of wind direction was due to glacial advance during MIS3b. Combining the result of anisotropy of magnetic susceptibility with grain size, heavy mineral assemblage data and previously published low-field mass susceptibility revealed that dust transported by the near-surface SW wind had a greater ability to enhance magnetic susceptibility and higher amphibole/epidote ratio. Additionally, a strong Siberian High during Heinrich Event (H)5 at ca. 48 ka blocked the advection of moisture into the region via mid-latitude westerlies, causing glacial recession and the weakening of the prevailing SW wind. Our study has implications for identifying changes in paleo-wind direction and dust source, which can aid understanding of the influence of westerlies and the Siberian High on dust accumulation, as well as their interactions.
KeywordGrain size Anisotropy of magnetic susceptibility Heavy mineral Central Asia loess Heinrich event
DOI10.1016/j.quaint.2019.05.002
WOS KeywordGRAIN-SIZE DISTRIBUTION ; MAGNETIC-SUSCEPTIBILITY AMS ; LATE QUATERNARY GLACIATION ; BE-10 SURFACE EXPOSURE ; CENTRAL-ASIA ; ILI BASIN ; TIAN-SHAN ; PALEOCLIMATIC SIGNIFICANCE ; ATMOSPHERIC CIRCULATION ; PALAEOWIND DIRECTIONS
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Basic Research Program of China[2016YFA0601902] ; Natural Science Foundation of China[41572162] ; Special Exchange Program for Russia from the Chinese Academy of Sciences ; Special Exchange Program for Ukraine from the Chinese Academy of Sciences ; Special Exchange Program for Belarus from the Chinese Academy of Sciences
WOS Research AreaPhysical Geography ; Geology
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Basic Research Program of China ; Natural Science Foundation of China ; Special Exchange Program for Russia from the Chinese Academy of Sciences ; Special Exchange Program for Ukraine from the Chinese Academy of Sciences ; Special Exchange Program for Belarus from the Chinese Academy of Sciences
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000573017600005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/15370
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorSong, Yougui
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Eotvos Lorand Univ, Dept Phys Geog, H-1117 Budapest, Hungary
5.Kobe Univ, Res Ctr Inland Seas, Nada Ku, Kobe, Hyogo 6578501, Japan
6.Natl Acad Sci Kyrgyz Republ, Inst Geol, Bishkek 720040, Kyrgyzstan
7.Amer Univ Cent Asia, Appl Geol Dept, Bishkek 720060, Kyrgyzstan
Recommended Citation
GB/T 7714
Cheng, Liangqing,Song, Yougui,Sun, Huanyu,et al. Pronounced changes in paleo-wind direction and dust sources during MIS3b recorded in the Tacheng loess, northwest China[J]. QUATERNARY INTERNATIONAL,2020,552:122-134.
APA Cheng, Liangqing.,Song, Yougui.,Sun, Huanyu.,Bradak, Balazs.,Orozbaev, Rustam.,...&Liu, Huifang.(2020).Pronounced changes in paleo-wind direction and dust sources during MIS3b recorded in the Tacheng loess, northwest China.QUATERNARY INTERNATIONAL,552,122-134.
MLA Cheng, Liangqing,et al."Pronounced changes in paleo-wind direction and dust sources during MIS3b recorded in the Tacheng loess, northwest China".QUATERNARY INTERNATIONAL 552(2020):122-134.
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