Seal element of the university of freiburg in the shape of a clover

AGC News

23.06.2026

How does technetium become incorporated into magnetite?

Magnetite is a major corrosion product of steel under oxygen-free conditions and can play an important role in retaining radionuclides in geological repositories. In his first paper, Thomas showed how technetium can become structurally incorporated into magnetite nanoparticles and identified the conditions and charge-balancing mechanism that enable this process. By combining high-resolution X-ray absorption spectroscopy with computational modeling, Thomas revealed new insights into the fate of technetium during steel corrosion – helping to better understand its long-term retention and relevance for repository safety
 

22.06. – 10.07.2026

From the Black Forest to the Lab: A Successful Start for Aquatic and Environmental Analytics

From 22.06. –10.07 2026, the Applied Geochemistry (AGC) Group successfully delivered the Aquatic and Environmental Analytics module for the first time to third-semester Earth Science students.

Centered around the question, “Is there a risk of contamination from former mining activities in the Kappler Valley?”, students explored a real-world environmental case study.

The course began with a full-day field excursion by bicycle, during which they collected water and soil samples throughout the Kappler Valley in the Black Forest. Despite the summer heat and the 700 m ascent, everyone remained in good spirits—and the cold drinks waiting in the Reichenbach stream during the lunch break were certainly well deserved.

Over the following days, morning lectures were complemented by hands-on laboratory sessions, where students analysed their own samples in small teams. Using modern environmental analytical techniques, they determined trace element concentrations, major ions, dissolved organic carbon, electrical conductivity, and pH, gaining valuable practical experience while working with samples they had collected themselves.

In the final week, the focus shifted to data interpretation and scientific report writing. The module concluded with a visit to the Geological Survey of Baden-Württemberg in Freiburg, where students gained further insights into the practical applications of environmental analytics in geoscience.

We would like to thank all students for their enthusiasm, motivation, and active participation, which made the first edition of the module such a success. We also thank the Soil Ecology Group at UFR for their support with the laboratory analyses!

24.04.2026

Kaiserstuhl Field Trip: “Lava, Loess, and Wine”

As part of a field trip for BSc Earth Sciences students in their 4th semester and beyond, participants traveled to the Kaiserstuhl region, where they were able to experience geology, landscape, and viticulture in a unique way.

A highlight of the program was a visit to the Hauri quarry, featuring an engaging guided tour by Simon Spürgi, who himself studied geology in Freiburg. On site, the students gained fascinating insights into the volcanic geology of the Kaiserstuhl as well as into modern quarrying operations.

In addition, topics such as land consolidation, the Kaiserstuhl’s carbonatite, and the Badberg spring were on the agenda. The various stops impressively illustrated the geological diversity and the region’s unique landscape history. The excursion also received very warm support from Simon Weiß of the Weiß Winery. With great enthusiasm, he explained how volcanic rocks and loess soils are reflected in the wine’s sensory profile and what influence geology has on the character of the wines.

Another highlight was the conclusion of the event amidst the vineyards: with a glass of wine in hand, the participants strolled through the vines while Dr. Mathias Vinnepand (Group of Sedimentology at UFR) shared fascinating insights into the formation of loess and its significance for the landscape and viticulture.

The field trip combined scientific content with regional culture and offered students numerous new perspectives on the interplay between geology, soils, and viticulture. A heartfelt thank you goes to Family Hauri, Simon Spürgi, Simon Weiß, and Dr. Mathias Vinnepand for their dedicated guidance and the many fascinating insights.

01.03.2026

Welcome to the team, Claire!

Claire joins us as our new laboratory assistant in Applied Geochemistry.

Claire is currently pursuing her Bachelor’s degree in Geosciences and will be actively supporting us in our laboratory in the future. We are delighted to welcome some fresh energy to the team. A warm welcome, Claire!

01.01.2026

Welcome to the team, Anh!


Since January 2026, Anh has been strengthening our group as a Senior Researcher. With a Ph.D. on arsenic mobility in Vietnam and extensive expertise in environmental microbiology, she brings valuable new perspectives to our research. We are very happy to have you on board, Anh!

15.12.2025

Our ICP-MS has arrived!

An exciting moment in setting up our lab: Our PerkinElmer QQQQ-ICP-MS has arrived. It wasn’t delivered quite to the right spot, so we had to join forces and use a pallet jack to push the roughly 250 kg through the geosciences garden and into the correct building—but that’s not something you get to do every day.

Now all that’s missing are the gas lines, and then we can really get started and measure trace elements, species, isotopes, and particles.

25.11.2025

Schönberg Field Trip


The field trip began in Au and led along the Schönberg to the Schönbergerhof. For the second-semester students, this was their first field exercise and gave them a vivid impression of the topography of the Freiburg area. As they moved from one outcrop to the next, they were able to familiarize themselves with various rock types typical of the Black Forest.
The first field trip concluded in perfect evening weather and an atmospheric sunset setting—and the students headed home for the evening with many new impressions.

15.09.2025

Welcome to the team, Lena!

We welcome our new lab manager, Dr. Lena Brüggenwirth, to the Applied Geochemistry team.
Lena is a geoecologist specializing in organic-mineral interactions and the dynamics of contaminants in soil. She has been instrumental in helping us set up our lab, and we look forward to advancing our team’s research with her support in the future.
Welcome aboard, Lena.