Interaction and variation of isotopic age, temperature, organic and inorganic solutes in Hungarian thermal waters

Fekete, József and Sajgó, Csanád and Horváth, István and Kárpáti, Zoltán and Vető, István and Hetényi, Magdolna (2009) Interaction and variation of isotopic age, temperature, organic and inorganic solutes in Hungarian thermal waters. Central European Geology, 52 (3-4). pp. 269-285. ISSN 1788-2281

Preview

Text ceugeol.52.2009.3-4.4.pdf Download (1MB) | Preview

Abstract

Abstract The geochemical facies of Hungarian thermal waters were the object of this study. Samples were separated into groups by relative ages (δ18O values). Mature and immature subgroups were formed on the basis of dissolved (semi)volatile organic compounds. The oldest (connate) waters form one group with a small number of samples. The subgroups containing different small molecular-sized soluble aromatics differ sharply in their chemical features (sodium, hydrogen carbonate, iodine, ammonium etc. content). The origin of the organic matter may differ in the subgroups as inferred by their different δ18O values and ten times greater halogen contents. Our results show that the decomposition of organic matter produces small molecular-sized aromatic compounds and also influences the amounts of inorganic components in thermal waters, through the increase of feldspar hydrolysis and carbonate dissolution.

Actions (login required)

Edit Item