Origin of Mineral Water Fatra, Slovakia

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• 作者：Du&scaron ; an Bodi&scaron ; ^a ; Franti&scaron ; ek Bottlik^a ; Radovan Černá ; k^a ; Jozef Kordí ; k^a ; Peter Malí ; k^a ; Juraj Michalko^a ; ^{juraj.michalko@geology.sk} ; Gabriela Vandrová ; ^b
• 关键词：chemical composition ; isotopes ; trend analysis ; conceptual model ; prognosis
• 刊名：Procedia Earth and Planetary Science
• 出版年：2017
• 出版时间：2017
• 年：2017
• 卷：17
• 期：Complete
• 页码：472-475
• 全文大小：259 K
• 卷排序：17

文摘

Mineral water Fatra is atypical one for Western Carpathians (Fig. 1). This mineral water is of Na-HCO3 chemical type (A1=78–81equiv. %) of water with high content of CO2. For this mineral water is characteristic high ratio of rMg/Ca (>1), high content of ammonium ions (22–79 mg.L-1) and boric acid (14-27 mg.L-1) and low chloride concentrations. Sulphate concentrations vary between 150 and 400 mg.L-1. Unique chemical composition of this mineral water is formed in a small hydrogeological structure with low yield in boreholes BJ-2 and BJ-4. Downward trend of almost all the selected chemical components was indicated by the Mann-Kendall trend analysis test. Downward trend is due to reduction of all components in content while original Na-HCO3 type of water is preserved. The isotope composition of mineral water is changed as well. Original isotopically depleted water (δ18O ∼ -11,2 ‰) is gradually replaced by enriched water with composition typical for present local precipitations (δ18O ∼ -10,1 ‰). The conceptual model is based on geological, hydrogeological and hydrogeochemical data supported by information on chemical and isotopic composition of Fatra mineral water. The conceptual model stresses the importance of its quantitative and qualitative protection.