气候变化领域集成服务门户(CCPortal): 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

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DOI	10.1177/0959683616670247
	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, Feng; Feng, Jin-Liang; Hu, Hai-Ping; Zhang, Ji-Feng; Gao, Shao-Peng; Liu, Xiao-Ming
通讯作者	Feng, JL (通讯作者)
发表日期	2017
ISSN	0959-6836
EISSN	1477-0911
起始页码	594
结束页码	604
卷号	27 期号:4
英文摘要	The 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.
关键词	BASIN WESTERN TIBET LATE QUATERNARY GLACIATION OCEAN SUMMER MONSOON ENVIRONMENTAL-CHANGES HYDROLOGICAL CHANGES PALEOENVIRONMENTAL CHANGE CLIMATE DEVELOPMENT LACUSTRINE CORE MOLLUSK SHELLS WATER-BALANCE
英文关键词	gastropoda; Holocene; lake-level changes; Nam Co lake; Radix; shell geochemistry; Tibetan Plateau
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000400198600009
来源期刊	HOLOCENE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258910
推荐引用方式 GB/T 7714	Chen, Feng,Feng, Jin-Liang,Hu, Hai-Ping,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]. 中国科学院青藏高原研究所,2017,27(4).
APA	Chen, Feng,Feng, Jin-Liang,Hu, Hai-Ping,Zhang, Ji-Feng,Gao, Shao-Peng,&Liu, Xiao-Ming.(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.HOLOCENE,27(4).
MLA	Chen, Feng,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".HOLOCENE 27.4(2017).