LARGE- SCALE FEATURES

ACCUMULATE ON

DEPOSITIONAL COAST.

Sand spit

deposition landform found off coast.

spits grow, salt marsh develop as water being sheltered.

Form where longshore current slow.

Slow current deposition of sand and gravel at

downcurrent of headland.

Curled cause by wave refraction.

Spurn point

Bay mouth bar

sand spit attach to headland.

adjacent to bay.

protect the bay.

Inlet

Narrow body of water.

At sea coast connection between bay and ocean.

Bay mouth bar

Beach and baymouth bar at

the mouth of the Russian

River at Jenner

Barrier island

Sand bar exposed and parallel to shoreline.

Sediment accumulate on submerged rise.

develop most easily on wave dominated coasts with a

small to moderate tidal range.

Migrate toward land as sea level rise.

Severe storm generate intense waves erode barrier

island.

Lagoon

Long, shallow body of water separated from

large body of water.

Isolated from ocean by barrier island or reefs.

Become island high land of coastal dunes.

Sea level increase island & lagoon increase

toward land.

Garabogaz – Gol

lagoon in

Turkmenistan

Sea island

Firm central core.

Part of mainland when sea level decrease.

Sea level increase surround with beach.

Tombolo sediment accumulate from bridge between

sea island and mainland.

Kelambu beach,

Kudat Sabah

Drumlin and moraines

Form by melting glacier.

The Bride Hills (terminal

moraine), Europe.

Deltas

Deposition of sediment found at river mouth.

Broad continental shelf present as a platform

Condition :

-river transporting a large amount of sediment.

-sea have a small tidal range and weak currents.

-shallow at the river mouth.

Shape represent balance between erosion and deposition.

River-dominatedStrong flow of fresh

water and continental

sediment.

Protect marginal

seas.

Well develop of

distribution cause split

end of river.

TYPE OF DELTA

Tide-dominatedTidal current more

strong than fresh water.

Sediment form long

island parallel to water

flow.

Wave- dominatedSmaller than river

dominated and tide

dominated.

Sooth shoreline.

Have one main exit

channel.

-THE END-

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