Aarhus Universitets segl

Western Limfjord pockmarks

In this project we investigate seafloor depressions in the shallow waters (<20m) of the western Limfjord, Denmark. The depressions was mapped with multibeam and high-resolution 2D seismic subbottom profiler surveys and sediment cores during the DCH funded AU-Limfjord 2017 cruise. We tentatively interpret the depressions to represent pockmarks formed due to fluid escape to the seafloor. Ongoing work includes constraining the formation, timing, duration and present-day activity of the pockmarks in order to understand their potential geohazard risk.