We present an integrated approach to characterizing the Žvepovnik sulphur spring, comprising detailed basic geological (mapping), geochemical (physico-chemical, elementary), isotopic (δ2H, δ18O, δ13CDIC, δ34S and 3H), microbiological analyses. used a multi-parameter determine origin of water (meteoric or deeper infiltration), carbon sulphur, retention times. Our special research interest is as ...