Location, chemical and isotopic composition of free bubbling gases collected in the Eastern Carpathians, Romania.

This dataset presents in situ measurements of the chemical composition of free and bubbling gases from the Eastern Carpathians, complemented by gas-chromatographic analyses at selected sites, as well as noble gas and carbon isotopic data. Its aim is to provide a comprehensive geochemical characterization of fluids released in both volcanic and non-volcanic areas of the Eastern Carpathians, serving as a basis for advanced geotectonic interpretations.