Description

When water freezes slowly, the solutes present in the water will not be incorporated in the crystal lattice of the ice. This slow and continuous freezing process will accompany the onset and evolution of permafrost conditions at the surface and in the bedrock in advance of ice cover during future glaciation events. During this process, salts that have been present in the surface waters and groundwaters will tend to accumulate at the propagating freeze-out front.

SKB Number

SKB FEP Number

Ge21

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Geosphere

Handling

Explanation of how the FEP is treated

Excavation/operation: Not relevant. Temperate: Not relevant. Periglacial: Modelling of transport of outfrozen salt. Glacial: Not relevant. Earthquakes: Not relevant.

References

Bibliographic references to obtain more information

SR-Site Geosphere process report, TR-10-48, Section(s) 1.6, 5.12; SR-Site Main report, TR-11-01, Section(s) 7.4.5