A potential repository site for high-activity radioactive waste is investigated in the vicinity of a former uranium mine in the Mecsek Mts. (S. Hungary). In order to evaluate the usefulness of the site, stable H, C and O isotope compositions of shallow groundwaters, repository site waters, carbonate veins and fluid inclusions of the veins have been measured. Shallow groundwaters have H and O isotope compositions identical to those of the present day local precipitation water, whereas repository site waters show δD and δ18O values characteristic of Pleistocene meteoric waters. Based on δ13C, δ180 and δD (inclusion fluid) data, the calcite veins might have been formed by movements of meteoric water originating from precipitation in a warmer climate of the geological past. The results indicate that no significant infiltration of surface waters to the investigated repository site occurs, but signs of migration of Pleistocene waters along the veins has been observed.
|Number of pages||3|
|Journal||Rapid Communications in Mass Spectrometry|
|Publication status||Published - Jan 1 1996|
ASJC Scopus subject areas
- Analytical Chemistry
- Organic Chemistry