Topic II - New approaches in palaeolimnology > II-3-Sediment inorganic geochemistry: methodological developments and applications in paleolimnology

Conveners

1. Sebastien Bertrand (GEOPS, Paris-Saclay University, Orsay, France, & Renard Centre of Marine Geology, Ghent University, Gent, Belgium)
2. Rik Tjallingii (Section Climate Dynamics and Landscape Evolution, GFZ German Research Centre for Geosciences, Potsdam, Germany)
3. Malin Kylander (Department of Geological Sciences and the Bolin Centre for Climate Research, Stockholm University, Stockholm, Sweden)

Inorganic geochemistry is a powerful tool in paleolimnology. It has become one of the most commonly used techniques to analyze lake sediments, particularly due to the continuous development and increasing availability of XRF core scanners over the last two decades. Inorganic geochemical measurements allow for the reconstruction of the long-term processes that occur in lakes and their watersheds, as well as the identification of event deposits, such as those representing floods, volcanic eruptions, earthquakes, etc. In this session, we invite a broad range of contributions related to all aspects of sediment inorganic geochemistry, from sample preparation to statistical analysis of geochemical datasets, including analytical developments, novel methods and software packages for data processing, and new proxies. This session also welcomes contributions focusing on inter-comparisons and cross-calibrations between instruments and is not limited to XRF core scanning. In addition, we encourage papers that present applications of inorganic geochemical techniques to lake sediments in order to reconstruct past environmental changes, as well as those that explore the potential and pitfalls of inorganic geochemistry in paleolimnology. This session is linked to a short course on XRF core scanning organized at the 2025 IPA-IAL conference.