Alkaline earth metals Barite C-13/C-12 Carbon Carbonates Devonian Epigene processes Geochemistry Gold Gold ores Gornij Vakuf Bosnia Isotope ratios Isotopes Kresevo Bosnia-Herzegovina Metal ores Metals Mineral deposits, genesis Mineralization O-18/O-16 Oxygen Paleozoic Permian Placers S-34/S-32 Siderite Stable isotopes Strontium Sulfantimonites Sulfates Sulfosalts