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    题名: Stable isotopic variations in oxygen and hydrogen of waters in Lake Bosten region, southern Xinjiang, western China
    作者: KUO-YEN WEI
    MENG-YANG LEE
    CHUNG-HO WANG
    YONG WANG
    TEH-QUE LEE
    PEI-YI YAO
    李孟陽
    汪中和
    贡献者: 臺北市立教育大學自然科學系
    关键词: oxygen isotope
    hydrogen isotope
    hydrology
    LakeBosten
    Xinjiang
    日期: 2002
    上传时间: 2009-07-31 10:53:14 (UTC+8)
    摘要: Water samples taken fromBosten Lake andseveral rivers/channels that flowinto or out
    of theLake duringthe summersof 1999and 2000were analyzedfor theirvarious characteristics,
    includingpH, conductivity,totaldissolved solid(TDS),C-14 ageaswellasoxygen andhydrogen
    isotopic ratios. The highC-14 activity of water samples suggests that the carbon in lakewater
    ismodern and the water circulation is fast.High conductivity and TDS of lake water samples
    (1000 - 3000 mS. cm-1) compared to river waters (130 - 300mS. cm-1) is indicative of the
    presence of soluble mineral species (e.g., sulfate and chloride), a sign ofmineralization of the
    lake water. The d18O values range from -2.5‰ to -10.5‰ whereas dD from -26‰ to -59‰.
    Compared to theriverwater samples, lakewater shows obvious enrichmentof heavier isotopes
    in bothoxygen and hydrogen, suggesting significant evaporation effectdespite the fact that the
    lakewater sampleswere taken during flooding periods of 1999 and 2000.On the d18O-dDplot
    the surfacewater data forma linear arraywith the best-fit line of dD= 3.7d18O- 20 (r =0.91).
    The intersectionbetween this lineand theGlobalMeteoricWaterLine ofCraigis approximately
    at d18O= -7‰ and dD= -46‰, indicative of the average d18Oand dDvalues of the precipitation
    of themiddle section of the Tien ShanRangeand theYan QiBasin. The water source ismainly
    from the precipitation ofwarm seasons (April - October).
    關聯: 西太平洋地質科學 Western Pacific Earth Sciences (WPES), Vol.2, No.1, P.67-82
    显示于类别:[應用物理暨化學學系暨碩士班] 期刊論文

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