Topic I - Advances in limnogeology > I-3-Method developments and applications of micrometer-scale geochemical imaging techniques on lake sediments

Conveners

1. Rik Tjallingii (Section Climate Dynamics and Landscape Evolution, GFZ German Research Centre for Geosciences, Potsdam, Germany)
2. Willem van der Bilt (Department of Earth Science and Bjerknes Centre for Climate Research, University of Bergen, Bergen, Norway)
3.  Martin Grosjean (Oeschger Center for Climate Change Research, Institute of Geography, University of Bern, Switzerland) 

Resolving past changes on human-relevant time scales (seasons to decades) is key to better constraining the long-term impacts of climate change on the environment and our society. Recent advances in the development of imaging techniques allow near-continuous analysis of the geochemical compositions and distributions needed to provide this temporal resolution. Such scanning techniques include X-ray fluorescence (μXRF), hyperspectral imaging (HIS), mass spectrometry imaging or micro-computed tomography (μCT). These techniques provide qualitative and quantitative information that can even resolve seasonal changes from annually resolved palaeoclimate archives. This session welcomes all contributions that develop methods and explore applications of imaging techniques, preferably but not exclusively on seasonally or annually resolved climate archives.