Physical Environment
GEBCO Bathymetric Contours
 100m - 500m depth
 600m - 1000m depth
 1100m - 1500m depth
 1600m - 2000m depth
 2100m - 2500m depth
 2600m - 3000m depth
 3100m - 3500m depth
 3600m - 4000m depth
 4100m - 4500m depth
 4600m - 5000m depth
Coastal Geology
 A10 - Plutonic rock
 A11 - Ultramafite and mafic rocks
 A12 - Intermediate rock (diorite, gabbro-diorite)
 A13 - Granitic rocks
 A20 - Volcanic rocks
 A21 - Lava (basalts)
 A23 - Volcano-sedimentary formations
 A30 - Metamorphic rocks
 A31 - Gneiss
 A32 - Schist
 A33 - Marble
 A34 - Quartzite
 A40 - Sedimentary rocks
 A41 - Sandstone
 A42 - Marl and consolidated clay
 A43 - Limestone
 A44 - Chalk
 B00 - Non cohesive formations
 C00 - No information
 D00 - Out of nomenclature
 OSI/OSNI Base Maps
Identify Map Feature   Zoom In   Zoom Out   Recentre Map   Zoom to Full Extent
zoom to
Layer Information
Click on the Add Layer button to select from a long list of coastal and marine layers to view in the map. Select a layer name to see information about a layer, including metadata and downloadable GIS data if available.

Explore the other tabs for more options.