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Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau
Chen, F (Chen, Feng)1,2; Feng, JL (Feng, Jin-Liang)1; Hu, HP (Hu, Hai-Ping)1,2; Feng, JL
Source PublicationHYDROBIOLOGIA
2016
Volume771Issue:1Pages:239-254
DOI10.1007/s10750-015-2634-1
AbstractFossil 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.
Subject Area自然地理学
WOS IDWOS:000372798500017
Language英语
Indexed BySCI
KeywordStable-isotope Composition Carbon Isotopes Bivalve Shells Mollusk Shells Holocene Oxygen Ratios Sr/ca Records Region
Cooperation Status国内
Department环境
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7712
Collection图书馆
Corresponding AuthorFeng, JL
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Bldg 3,16th Lincui Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, F ,Feng, JL ,Hu, HP ,et al. Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau[J]. HYDROBIOLOGIA,2016,771(1):239-254.
APA Chen, F ,Feng, JL ,Hu, HP ,&Feng, JL.(2016).Relationship between the shell geochemistry of the modern aquatic gastropod Radix and water chemistry of lakes of the Tibetan Plateau.HYDROBIOLOGIA,771(1),239-254.
MLA Chen, F ,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):239-254.
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