The grain size composition can be determined with a laser diffractometer from Beckman-Coulter. The laser particle analyzer LS 13320 simultaneously measures the range from 2 mm to 40 nm. The laser particle analyzer uses the different light scattering of particles of different sizes.
We also perform particle size determinations for external customers. If you are interested and have any questions, please contact the laboratory manager

In the SedLab we analyze the compositional properties of sediments. Measuring the full range of grain size distributions from a few nanometers to centimeters and determine the shape of each single grain. Disentangling sediments allows scientists to infer the history of the sediments, interpret sedimentary archives and learn about the processes that have generated and transported the sediments.
The SedLab of the geomorphology section is fully equipped lab for measuring routinely large batches …

The sediment processing laboratory is a space for preparing marine and non-marine sedimentary samples for microscopy and other analyses, which require individual components or fabric specific analysis (e.g., Mass Spectrometry, trace metals, isotope studies…). Preparation methods include separating and picking of biogenic particles, thin section dying techniques, sieving for granulometry, and creating smear slides and acetate peels.

The sedimentology lab at the Permafrost Research section aims to study the transport and accumulation processes of permafrost-related deposits and classify sediment sequences in general. Therefore, the following parameters are investigated: sediment structure description, grain-size distribution and mass specific magnetic susceptibility.

In this laboratory, the soil samples are pre-spread, weighed and their grain size determined. The particle size composition can be determined by sieving. For this purpose, sieves with increasing mesh sizes are placed one above the other on a vibrating screening machine, starting with the lower collecting plate for the finest particles. The sieves are set in vertical oscillation by an electromagnetic drive. This results in an even distribution of the sieved material over the meshes. Mass …