Compressed and thrusted sediments formed at the edge of a former ice sheet (north of Helgoland). The lowest shear horizon (décollement) lies at a depth of ca. 250m. Individual faults have been marked in green. The red line marks the position of the Middle-Mioscene Unconformity. BGR multi-channel seismic profile HE242-06, vertical axis =ca. 1 second two-way-traveltime (TWT), representing approximately 1 kilometre.

Source: BGR