In September Sanja Šuica attended Short Course on Sedimentary Provenance Analysis SPA2025 organized by Geoscience Center Göttingen, Georg Augustus University Göttingen. The course included lectures in topics of provenance analysis, such as bulk sediment petrography and geochemistry and heavy mineral analysis, but the major focus was on varietal studies, including mineral chemistry, geochronology and thermochronology. Besides the lectures, attendees visited laboratory facilities at the University. 

During the August, we conducted the second field research in the area of Central Bosnia (vicinity of Kotor Varoš, Travnik, Bila, Jajce and Zenica in Bosnia and Herzegovina). Besides logging new geological sections identified during last year's research, we managed to collect numerous samples for biostratigraphic, petrographic, mineralogical, geochemical and geochronologic analyses. This year we were lucky to host members of our Slovenian team and Stjepan Ćorić from Geospehere, Austria. 

Iva Olić Peco and Sanja Šuica attended 4th School of Heavy Mineral Analysis organized by University of Milano-Bicocca, Department of Earth and Environmental Sciences. Besides oral presentations and laboratory demonstrations, this workshop included practical sessions with optical identification of minerals in grain mounts. Attendees also visited Bicocca Mineral Show during the workshop and EUROCOLD Lab, where ice cores are stored. 

Our team members Matej Plavac, Sanja Šuica, and Borna Lužar-Oberiter participated in the EGU General Assembly 2025, one of the biggest conferences in the field of geosciences, held annually in Vienna. This conference was attended by more than 18 000 participants from 104 conutries. Matej and Sanja presented posters “Indications of Provenance and Source Rock Contributions in Paleogene Deposits from Zrinska Gora, Croatia”, and “U-Pb ages of detrital zircons from synorogenic clastic formations in the Dinarides (Croatia)”, respectively. Borna gave an oral presentation on preliminary results from Gacko entitled “Initial stages of foreland basin formation along the Adriatic carbonate platform margin of the Dinarides (Gacko, Bosnia and Herzegovina)”. 

Our team members Iva Olić Peco and Sanja Šuica attended 21st Meeting of the Central European Tectonic Studies Group (CETEG 2025) in Nové Hamry, Czech Republic from 23rd to 26th April, 2025. Iva presented poster Exhumation of the western part of the sava suture zone. Insights from Zrinska Gora (Croatia), while Sanja held oral presentation Provenance of siliciclastic detritus from Cretaceous synorogenic basins in the NW Dinarides based on zircon U-Pb ages. Besides fruitfull discussions with collegues about project results, they also had the opportunity to attend pre and post-conference field trips where they learned about the geology of the Bohemian Massif and its context in European Variscides as well as Quartenary geodynamics of the Cheb basin and its position in the European Cenozoic Rift System.

Project team meetings were held on Tuesday, February 4, with only the Croatian team members participating, and on Tuesday, February 11, with the full team, including colleagues from Slovenia. During the meetings, the project’s results to date were presented, and plans were made for upcoming conferences and field research in Bosnia and Herzegovina. 

Further field research was conducted in the Jajce region, Bosnia and Herzegovina, from August 19th to 22nd, 2024. A survey was carried out across the wider Jajce area, focusing on outcrops of flysch, with numerous sandstone and marl samples collected for petrographic, mineralogical, and biostratigraphic analysis. At a newly identified profile near Kotor Varoš detailed sampling was performed for petrographic and stratigraphic studies.

From July 15th to 19th, 2024, we conducted field research in the surroundings of Gacko, Bosnia and Herzegovina. During this time, we collected sandstone samples from the Cretaceous-Paleogene flysch for further petrographic and mineralogical analysis. We also created detailed sedimentological logs at selected profiles. This allowed us to familiarize ourselves with the sedimentological facies, which will help in distinguishing subunits within the surrounding basin succession. Additionally, we gathered marl, chert, and limestone samples from these profiles for biostratigraphic analysis. Along with exploring the field, we established a new collaboration with PhD student Marija Bjelogrlić from the University of Belgrade. Marija, now part of the extended team, provided valuable support by helping us select profiles and conduct sedimentological research in the field.

The Croatian team held its initial kick-off meeting on January 12, 2024, at the Faculty Of Science in Zagreb. All team members were present at the gathering, where we discussed project activities planned for the first year. Izv. prof. Borna Lužar-Oberiter laid out the project goals and presented an overview of the study locations in Croatia and Bosnia and Herzegovina, which will be the main focus of the Croatian team.