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  • Seabed sediments and sedimentary environment. The map service presents the grain size composition, relative hardness and the genesis of the of the seabed sediments in Norwegian marine areas. The thickness of Quaternary sediments on the Norwegian Shelf and the thickness of the Holocene sediments in the Skagerrak are also presented.

  • Main direction of bottom currents interpreted on the basis of the distribution pattern of sediment types.

  • The map layer provides an overview of the dominant sedimentation environment in the mapped area. This is an interpretation of the processes that prevail on and near the seabed in terms of deposition, transport and erosion of sediments. The map has been digitized for use at a scales of about 1:20 000 (detailed).