20.500.12556/RUL-156152 Hydrogeochemical conditions of submarine and terrestrial karst sulfur springs in the Northern Adriatic Submarine springs near Izola, in the Northern Adriatic Sea, appear in funnel-shaped depressions and smell strongly of sulfur. Along the Mediterranean coast there are many submarine karst springs containing brackish or fresh water, but submarine sulfur springs are not particularly common. Three submarine sulfur springs and one terrestrial sulfur spring were investigated to better understand the water properties, water–rock interaction within the aquifer, and to explore the origin of the spring water. Groundwater and seawater samples were also collected for comparison. Based on the geological setting, physicochemical parameters, hydrogeochemical data, and stable isotope data (δ$^{18}$O, δ$^2$H, δ$^{13}$C$_{DIC}$, δ$^{34}$S$_{SO4}$, δ$^{18}$O$_{SO4}$), we can affirm that (1) the large concentration of seawater in the submarine springs samples is due to sampling challenges; (2) springs recharge from precipitation where confined karst aquifers outcrop; (3) deep water circulation is indicated; (4) redox conditions can provide a suitable environment for bacterial reduction of the marine or organic sulfate to the odorous H$_2$S; (5) geological data suggests that the coals beneath the alveolinic-nummulitic limestones are the source of sulfur. A multi-parameter and interdisciplinary approach has proven important in assessing submarine sulfur springs affected by seawater input. terrestrial and submarine sulfur springs karst groundwater hydrogeochemistry stable isotopes Slovenia true false true Angleški jezik Ni določen Članek v reviji 2024-05-10 15:53:01 2024-05-10 15:53:02 2024-05-11 03:58:06 0000-00-00 00:00:00 2024 0 0 18 str. iss. 7, art. 214 Vol. 83 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 55 1866-6280 10.1007/s12665-024-11476-7 190295043 s12665-024-11476-7.pdf s12665-024-11476-7.pdf 1 D0DBC67F43953E93D94EF07C7C05F79D 1a3f1c78ada9814836b869c3d51e477fa45b1fbdbc48bb180d599d33a56c02ec dfe101d3-0ed4-11ef-99d3-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=183454 https://link.springer.com/article/10.1007/s12665-024-11476-7 0 c4f3c0c0-0ed4-11ef-99d3-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=183453 Naravoslovnotehniška fakulteta 0 0 0