Oxygen isotopes in different water stages of the Muránska Planina Plateau karstic springs (original) (raw)

Abstract

Three karstic springs, recharged in karstified Middle Triassic limestone aquifer of the Muránska Planina karstic Plateau (Slovakia), were sampled for oxygen isotopes, Ca2+, Mg2+ and Cl- ions during snowmelt period in 2 – 4 days intervals (mid February – end of June). In average, 42 samples were taken from each of the “Tisovec–Horný”, “Tisovec–Dolný” and “Podhrad” springs. Sampling period had covered both pre-snowmelt period and the practically the whole springs’ recession after the discharge maximum. Karst spring hydrograph separation method, based on quick iterative solution of several simple exponential and linear equations, was used for assessment of groundwater quality/quantity relations. The applied method was based on a presumption, that a spring’s discharge depends on the level of aquifer saturation by groundwater, and that the same discharge reflects the same groundwater saturation (piezometric level) in the aquifer. Typical hydrograph of each spring there is described by un...

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