气候变化领域集成服务门户(CCPortal): Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau

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DOI	10.1007/s10750-015-2634-1
	Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau
	Chen, Feng; Feng, Jin-Liang; Hu, Hai-Ping
通讯作者	Feng, JL (通讯作者)
发表日期	2016
ISSN	0018-8158
EISSN	1573-5117
起始页码	239
结束页码	254
卷号	771 期号:1
英文摘要	Fossil shells of the aquatic mollusk Radix are common in the exposed sediments of lake terraces on the Tibetan Plateau. However, the living environment of Radix, and the geochemical characteristics of its shells, is unclear. Here, we report the results of an investigation of the occurrence of modern Radix in lakes of the southeastern and central Tibetan Plateau, as well as measurements of various geochemical characteristics of the shells. The results indicate that the nutritional status of the lake waters is the main limiting factor for the survival of Radix in these lakes. The Sr/Ca ratio of the Radix shells is significantly positively correlated with both the Sr/Ca ratio and the conductivity of the lake water. Initially, Kd(Sr) decreases rapidly with low values of Sr/Ca-water; however, in the case of Sr/Ca-water values above 0.0076, Kd(Sr) exhibits only a small range of variation. The delta C-13(shell) values are controlled by the delta C-13 of lake water dissolved inorganic carbon (DIC). In addition, the contribution of DIC of organic origin to the Radix shells increases when the lake water is deficient in DIC of inorganic origin. The delta O-18 values of the Radix shells provide useful information about the isotopic composition of the ambient waters.
关键词	STABLE-ISOTOPE COMPOSITION CARBON ISOTOPES HOLOCENE OXYGEN RATIOS SR/CA MOLLUSKS RECORDS MG/CA PALEOENVIRONMENT
英文关键词	Tibetan Plateau; Gastropod Radix; Hydrochemistry; Shell geochemistry; Oxygen and carbon isotopes; Sr/Ca ratio
语种	英语
WOS研究方向	Marine & Freshwater Biology
WOS类目	Marine & Freshwater Biology
WOS记录号	WOS:000372798500017
来源期刊	HYDROBIOLOGIA
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/258655
推荐引用方式 GB/T 7714	Chen, Feng,Feng, Jin-Liang,Hu, Hai-Ping. Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,771(1).
APA	Chen, Feng,Feng, Jin-Liang,&Hu, Hai-Ping.(2016).Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau.HYDROBIOLOGIA,771(1).
MLA	Chen, Feng,et al."Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau".HYDROBIOLOGIA 771.1(2016).