Features of a drainage basin
Tributary
A small river flowing into a larger river.
Features formed at the old stage of a river
Floodplain Levees Ox bow lake Delta
Rate of deposition depends on
How fast the river loses speed Reduction in water How much the slope has decreased Whether the water is flowing into the sea or a lake
River cliff
River moves faster on the poutside of the meander (bend) and cuts into the valley side. The erosion undercuts the bank/ground causing it to collapse, leaving a cliff.
River beach
River moves more slowly on the inside of a meander(bend) and it cannot carry the larger pebbles and these are dropped there.
Rate of river erosion depends on
Size of the river. Speed of the river Hardness of the rock
Watershed
The high ground that separates one river basin from another.
Basin
The land area from which a river and its tributaries drain water.
Estuary
The part of the mouth that is tidal.
Confluence
The point at which a tributary joins the river.
Course
The route a river takes as it flows into the sea.
Features formed at the youthful stage of a river
V-shaped valley Interlocking spurs Waterfall
Mouth
Where a river flows into (lake or sea).
Source
Where a river starts.
Features formed at the mature stage of a river
Wider valleys Meanders
Gorge
Deep valley caused by wearing back of of a waterfall.