Sulphur and oxygen isotopic composition of sulphates in springs feeding the Wieprz river and other springs of Lublin Upland and Roztocze.
Springs on Roztocze and Lublin Upland have been studied. Isotopic data are compared with data of chemical analyses. The results of studies allow us to distinguish five types of groundwaters. The differentiation is based upon different lithology; opokas, gaizes, sandy-silty-clay deposits, sands with shell sandstones, marly opokas, marly limestones and 'soft limestones of chalk type. A correlation can be observed between delta34S and the concentration of Ca or Mg ions also a correlation between HCO3- ion concentration and delta18O in sulphates. Probably these correlations are the result of some simultaneous processes, which occur in groundwater. The seasonal variations of the isotopic composition and sulphate concentration were observed in four springs feeding the upper Wieprz. The variations were simultaneous and often similar in these springs. Probably, these variations are caused by the admixture of sulphates coming from shallow water layers (or leached from soil); however the variations of the groundwater level may also change chemical and isotopic composition in groundwater.
Mass Spectrometry Laboratory, Institute of Physics, Maria Curie-Sklodowska University, Plac Marii Curie-Sklodowskiej 1, 20-031 Lublin, Poland. atrem@tytan.umcs.lublin.pl
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Trembaczowski
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Swieca
D004784:Environmental Monitoring; D010103:Oxygen Isotopes / Q000032:analysis; D011044:Poland; D012987:Soil; D013431:Sulfates / Q000032:analysis*; D013460:Sulfur Isotopes / Q000032:analysis; D014867:Water / Q000737:chemistry; D014881:Water Supply
D010103:Oxygen Isotopes; D012987:Soil; D013431:Sulfates; D013460:Sulfur Isotopes; D014867:Water