The map layer shows the spread of bioclastic sediments consisting of particles formed from the decomposition of mainly calcareous organisms, and may contain all grain sizes from clay to block. The map layer contains no information about the proportion of living and dead organisms.

Map layer shows surface sediments (superficial deposits) on the seabed in mapped areas along the Norwegian coast. Superficial deposit as a property describes the mode of formation (genesis). The maps are digitized with a view to presentation at a scale of ca. 1:100 000 - 1:250 000 (regional mapping).

Map layer shows surface sediments (superficial deposits) on the seabed in mapped areas along the Norwegian coast. Superficial deposit as a property describes the mode of formation (genesis). The maps are digitized with a view to presentation at a scale of ca. 1:20 000 - 1:150 000 (detailed mapping). Seabed sediments classified by genesis (quaternary geology).