| Symbol | Definition | Description | Code |
 | Deposition from suspension | Areas of mud deposition from suspension. Particles in the sand fraction may occur. Very weak bottom currents/still water, often in deep basins. | 1 |
 | Deposition from suspension, local erosion of fine-grained sediments | Areas dominated by deposition, but local erosion occurs. Mud deposition from suspension dominates, but particles in the sand fraction occur. Weak bottom currents, often in deep areas with local elevations. | 2 |
 | No/very slow deposition | Areas of restricted sediment input and weak bottom currents, leading to no/very slow deposition/erosion. As an example, glacial sediments from the last ice age may be exposed on the seabed or be covered by a thin sediment layer (mm-cm). | 7 |
 | Deposition from bottom currents | Areas of medium to strong bottom currents transporting and depositing silt, sand and gravel on the seabed. Typical sedimentary structures are sediment ripples and sediment waves. | 3 |
 | Erosion, local deposition of sediments in topographic lows | Areas dominated by erosion, but with local deposition of sediments in topographic lows and sheltered areas. Depositional environment with medium to strong bottom currents that erode and transport sediments along the seabed. Typical sedimentary structures include sand ripples, sand waves, sediment ribbons and obstacle marks. | 4 |
 | Erosion | Areas dominated by erosion. Depositional environment with strong bottom currents that erode and transport sediments along the seabed. Typical sedimentary structures include scour hollows, current induced furrows and lag deposits. | 5 |