Goldschmidt Conference, Barcelona, 18 – 23 August 2019 / 25.08.2019

First results of the study of Sr and U isotopes as tracers of carbon flow in the fluviokarst aquifer of Ljubljanica river were shown in an oral presentation

Goldschmidt is the foremost annual, international conference on geochemistry and related subjects, organised by the European Association of Geochemistry and the Geochemical Society. In 2019, the conference was attended by over 4000 scientists, who presented 2395 oral talks and 2208 posters.

The results of the investigation of strontium isotope fractionation in the springs and sinking streams of Ljubljanica River was presented in a talk given by S. Lojen in the session. The δ⁸⁸Sr value of dissolved Sr proved to be an excellent tool for trackng transitions of carbon between dissolved and mineral pool in surface streams and inside the karst aquifer. Because of  multitude of processes that simultaneously affect the isotope composition of dissolved inorganic carbon in (ground)water, the δ⁸⁸Sr value was the only parameter that revealed the dissolution of secondary authigenic carbonate in the aquifer, which was also confirmed by the analysis of drip- and pool water in some caves of Ljubljanica aquifer.

See the presentation here.