Lacustrine turbidites are a reliable record of seismic activity. When a turbidity current moves downslope a typical sedimentary sequence is created afterwards, including a fine to coarse grained sand fraction at the bottom (if the current has enough energy) towards a layer of fine grains of silt or clay towards the top. The characterisation of those turbidites on different locations is essential to reconstruct the complete impact of past earthquakes.
When sedimentary structures are present in cores, it is possible to reconstruct the orientation and flow direction with CT. However, if such sedimentary structures are not present, grain fabric and size analysis can reveal important information. The resolution of medical CT is not sufficient to analyse grain sizes, thus there is a high demand for sediment core analysis to evaluate grain size in a non-destructive way using a system like the TESCAN CoreTOM.