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Delta
Delta: fan shaped (triangular shape)
landform where river enters lakes, seas or
oceans.
Deltas are formed by deposition processes.
Delta formation:
Rivers or streams which flow fast
carry sediments which called silt.
as the river water flows it carries
more and more sediments until
the river water becomes full of
sediments.
when the speed of the river water
decreases, it drops the sediments
(silt) which forming deltas.
Silt: made of fine
Deltas formed when: sand, clay or rock
1- Fast water enters still (immovable) water as river enters a lake.
2- Fast water enters slower moving water as large river enters sea
or ocean.
Second Term 43
