High Resolution Seismic Data
Snøhvit – Pockmarks at the Seafloor
Pockmarks are craters at the seabed of different forms and sizes and covering areas with different densities.
- This morphological expression of gas or oil leakage can be from active hydrocarbon systems or ancient fluid migration processes.
- The pockmark craters can be caused by fluids (gas and liquids) erupting and streaming through the sediments.
Shaded relief bathymetric image of a pockmark from the North Sea
(Data collected by ROV multibeam with 0.2m resolution)
Karen Webb (University of Oslo)