Active Continental Margin
Related content
- Abyssal fan
- Abyssal plain
- Accretion (coastal management)
- Acoustical oceanography
- Airy wave theory
- Amphidromic point
- Anchialine pool
- Archipelago
- Argo (oceanography)
- Atmospheric circulation
- Atoll
- Avulsion (river)
- Ayre (landform)
- Ballantine Scale
- Baroclinity
- Barrier island
- Bathymetric chart
- Bay
- Baymouth bar
- Beach
- Beach cusps
- Beach evolution
- Beach ridge
- Beachrock
- Benthic lander
- Benthic zone
- Bight (geography)
- Black smoker
- Blowhole (geology)
- Boulder
- Boundary current
- Boussinesq approximation (water waves)
- Brackish marsh
- Breaking wave
- Bulkhead line
- Cape (geography)
- Category Coastal and oceanic landforms
- Category Coastal geography
- Category Ocean currents
- Category Physical oceanography
- Category Plate tectonics
- Category Tides
- Category Water waves
- Channel (geography)
- Clapotis
- Clay
- Cliff
- Cliff-top dune
- Cliffed coast
- Cnoidal wave
- Coast
- Coastal erosion
- Coastal geography
- Coastal management
- Coastal plain
- Coastal waterfall
- Cold seep
- Color of water
- Concordant coastline
- Continental crust
- Continental margin
- Continental rise
- Continental shelf
- Contourite
- Convergent boundary
- Coral reef
- Coriolis effect
- Cove
- Cross sea
- Current (stream)
- Current sea level rise
- Cuspate foreland
- Deep ocean water
- Deep sea
- Deep-ocean Assessment and Reporting of Tsunamis
- Discordant coastline
- Dispersion (water waves)
- Divergent boundary
- Downwelling
- DSV Alvin
- Dune
- Earth tide
- Eddy (fluid dynamics)
- Edge wave
- Ekman layer
- Ekman spiral
- Ekman transport
- El Niño-Southern Oscillation
- Emergent coastline
- Equatorial waves
- Estuary
- Feeder bluff
- Fetch (geography)
- Firth
- Fjard
- Fjord
- Flat coast
- Fracture zone
- Freshwater marsh
- Fundus (seabed)
- Future sea level
- Gat (landform)
- Geo (landscape)
- Geostrophic current
- Global circulation model
- Global Ocean Data Analysis Project
- Global Sea Level Observing System
- Graded shoreline
- Gravity wave
- Gulf Stream
- Guyot
- Halothermal circulation
- Head of tide
- Headland
- Headlands and bays
- How Long Is the Coast of Britain? Statistical Self-Similarity and Fractional Dimension
- Humboldt Current
- Hydroacoustics
- Hydrography
- Hydrothermal circulation
Continental margin
The continental margin is the zone of the ocean floor that separates the thin oceanic crust from thick continental crust. Continental margins constitute about 28% of the oceanic area.
The transition from continental to oceanic crust commonly occurs within the outer part of the margin, called continental rise. Oceanwards beyond the edge of the rise lies the abyssal plain. The underwater part of the continental crust is called continental shelf, which usually abruptly terminates with the continental slope, which in turn terminates with the foot of the slope. The under-ocean part constitutes about 20% of the continental crust.
The edge of the continental margin is one criterion for the boundary of the internationally recognized claims to underwater resources by countries in the definition of the "Continental Shelf" by the United Nations Convention on the Law of the Sea (although in the UN definition the "legal continental shelf" may extend beyond the geomorphological continental shelf and vice versa).
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