IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Loess deposits in the Tajik Basin, Central Asia: chronology, provenance and palaeoclimatic implications since the Last Glacial
Tian, Shengchen1,2; Sun, Jimin1,2,3; Zhang, Zhiliang1; Abdulov, Sherzod1,2,4; Cao, Mengmeng1,2; Gadoev, Mustafo4; Oimahmadov, Ilhomjon4
2020-10-27
Source PublicationBOREAS
ISSN0300-9483
Pages20
AbstractThe thick loess deposits in Tajikistan are important archives for palaeoclimatic reconstruction in Central Asia during the Quaternary. To date however, adequate high-resolution studies of chronology and climatic evolution of the Tajik loess have still not been carried out. In this paper, chronology, dust provenance, and palaeoclimatic significance of a loess section in the centre of the Tajik Basin has been studied. Optically stimulated luminescence (OSL) dating yields ages ranging from similar to 60.8 to 0.8 ka, indicating that this loess section accumulated during the Last Glacial period and the Holocene. The provenance of the Tajik loess includes dust transported by westerly winds from the upwind deserts in Turkmenistan, and minor proximal particles derived from alluvial sediments of the nearby mountains and fluvial/glacifluvial deposits on the river flood-plains. Multiple palaeoclimatic proxies including colour, particle size, environmental magnetic parameters, and element concentrations together with their correlation with the deep-sea delta O-18 record suggest that the Tajik loess accumulated during cold and dry stadial periods, while palaeosols formed during warm and moist interglacials or interstadials, which is similar to the Chinese Loess Plateau. Although the two regions have different dust provenances and wind systems, such similarity indicates that the palaeoclimatic variations in both regions might be forced by a common global factor, e.g. the global ice volume. Variations in global ice volume influenced the climate in Tajikistan and the Loess Plateau through affecting the westerlies and the East Asian Monsoon, respectively.
DOI10.1111/bor.12467
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China
WOS KeywordARID CENTRAL-ASIA ; CHEMICAL-WEATHERING HISTORY ; CHINESE LOESS ; GRAIN-SIZE ; PALEOSOL SEQUENCE ; MAGNETIC-SUSCEPTIBILITY ; QUATERNARY CLIMATE ; LATE-PLEISTOCENE ; SOUTHERN TAJIKISTAN ; MOISTURE EVOLUTION
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDA20070202] ; National Nature Science Foundation of China[41888101] ; National Nature Science Foundation of China[41672168]
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Nature Science Foundation of China ; National Nature Science Foundation of China
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000582543800001
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/98218
Collection新生代地质与环境院重点实验室
Corresponding AuthorSun, Jimin
Affiliation1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Acad Sci, Inst Geol Earthquake Engn & Seismol, Aijni Str 267, Dushanbe 734063, Tajikistan
Recommended Citation
GB/T 7714
Tian, Shengchen,Sun, Jimin,Zhang, Zhiliang,et al. Loess deposits in the Tajik Basin, Central Asia: chronology, provenance and palaeoclimatic implications since the Last Glacial[J]. BOREAS,2020:20.
APA Tian, Shengchen.,Sun, Jimin.,Zhang, Zhiliang.,Abdulov, Sherzod.,Cao, Mengmeng.,...&Oimahmadov, Ilhomjon.(2020).Loess deposits in the Tajik Basin, Central Asia: chronology, provenance and palaeoclimatic implications since the Last Glacial.BOREAS,20.
MLA Tian, Shengchen,et al."Loess deposits in the Tajik Basin, Central Asia: chronology, provenance and palaeoclimatic implications since the Last Glacial".BOREAS (2020):20.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tian, Shengchen]'s Articles
[Sun, Jimin]'s Articles
[Zhang, Zhiliang]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian, Shengchen]'s Articles
[Sun, Jimin]'s Articles
[Zhang, Zhiliang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian, Shengchen]'s Articles
[Sun, Jimin]'s Articles
[Zhang, Zhiliang]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.