Geology

Stratigraphy and facies

The rock laboratory is situated in the Opalinus Clay rock formation, a marly argillaceous claystone with different proportions of sand and carbonates. Opalinus Clay has an age of approximately 174...

3D geological model

This short movie presents the new geological 3D-model of the Mont Terri area. Data from the lab (boreholes, mappings) are combined with regional geological data (maps, cross-sections, etc.).

Geological structures

The main tectonic element in the investigation area is the Mont Terri anticline. This is a dome-shaped fold that, due of the pressure of the Alps (Fernschub = distant push hypothesis), was pushed...

Properties and characteristic values

Opalinus Clay exhibits properties conducive to the deep geological storage of radioactive waste. The advantages clearly outweigh any disadvantages.