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Potential forcing mechanisms of Holocene lake-level changes at Nam Co, Tibetan Plateau: Inferred from the stable isotopic composition of shells of the gastropod Radix
Chen, F (Chen, Feng)1,2; Feng, JL (Feng, Jin-Liang)1; Hu, HP (Hu, Hai-Ping)1,2; Zhang, JF (Zhang, Ji-Feng)1; Gao, SP (Gao, Shao-Peng)1; Liu, XM (Liu, Xiao-Ming)3; Feng, JL
Source PublicationThe HOLOCENE
2017
Volume27Issue:4Pages:594-604
DOI10.1177/0959683616670247
AbstractThe timing of lake-level fluctuations on the Tibetan Plateau and their relationship with climatic changes is still under debate, and the main reason for this is the lack of suitable archives for reconstructing the paleohydrology and paleoclimatology of the lakes. Here, we present the results of analyses of the shell geochemistry of Radix sp. from an exposed terrace of Nam Co lake on the south-central Tibetan Plateau. Optically stimulated luminescence (OSL) dating reveals that deep-water lacustrine sediments formed between ca. 4.4 and 2.2 ka, suggesting a high and stable lake level significantly above the present. The results of Sr/Ca, C-13 and O-18 analyses of the fossil shells of Radix sp. indicate that during the mid- to late-Holocene, lake-level variations in Nam Co were mainly controlled by variations in the Indian Summer Monsoon. A trend of decreasing evaporation also played an important role. Comparison with other results suggests a consistent pattern of mid- to late-Holocene lake-level changes across a large area of the Tibetan Plateau and adjacent regions to the south, which had a similar causal mechanism. Finally, our results indicate that fossil shells of the gastropod Radix sp. of the lakes on the Tibetan Plateau are a valuable archive for reconstructing the regional paleohydrology and paleoclimatology.
Subject Area自然地理学
WOS IDWOS:000400198600009
Language英语
Indexed BySCI
KeywordBASIN WESTERN TIBET LATE QUATERNARY GLACIATION OCEAN SUMMER MONSOON ENVIRONMENTAL-CHANGES HYDROLOGICAL CHANGES PALEOENVIRONMENTAL CHANGE CLIMATE DEVELOPMENT LACUSTRINE CORE MOLLUSK SHELLS WATER-BALANCE
WOS Research AreaPhysical Geography; Geology
WOS SubjectGeography, Physical; Geosciences, Multidisciplinary ; Physical Geography; Geology
Cooperation Status国内
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8304
Collection图书馆
Corresponding AuthorFeng, JL
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China.
2.Univ Chinese Acad Sci, Beijing, Peoples R China.
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Chen, F ,Feng, JL ,Hu, HP ,et al. Potential forcing mechanisms of Holocene lake-level changes at Nam Co, Tibetan Plateau: Inferred from the stable isotopic composition of shells of the gastropod Radix[J]. The HOLOCENE,2017,27(4):594-604.
APA Chen, F .,Feng, JL .,Hu, HP .,Zhang, JF .,Gao, SP .,...&Feng, JL.(2017).Potential forcing mechanisms of Holocene lake-level changes at Nam Co, Tibetan Plateau: Inferred from the stable isotopic composition of shells of the gastropod Radix.The HOLOCENE,27(4),594-604.
MLA Chen, F ,et al."Potential forcing mechanisms of Holocene lake-level changes at Nam Co, Tibetan Plateau: Inferred from the stable isotopic composition of shells of the gastropod Radix".The HOLOCENE 27.4(2017):594-604.
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