Geography-Water on the Land

Key words regarding rivers and their procesess/formations. 

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Erosion
Sculpting of a landscape, for example by rivers, involving the removal of material.
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Transportation
The carrying of sediment downstream from the point where it has been eroded to where it is deposited.
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Deposition
The dropping of sediment that has been transported by a river.
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Hydraulic action
The power of the volume of water moving in a river.
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Abrasion
When large rocks carried by the river hit the bed and banks, causing bits to break off.
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Attrition
When stones hit each other gradually making each other smoother.
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Solution
Dissolving of rocks and minerals in the water. A means of transportation as well as erosion.
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Vertical Erosion
Erosion which occurs vertically. For example; when a river gouges out a deep valley.
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Lateral Erosion
Erosion which occurs laterally. For example; at the outside bend of a meander.
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Traction
The rolling along of large boulders along the river bed.
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Saltation
The 'bouncing' movement of small stones along the river bed.
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Suspension
Small material carried within the water. (Sand & Silt)
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Long Profile
A line representing the course of the river from the source, to its mouth where it enters the sea or a lake.
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Cross Profile
A line that represents what it would be like to walk from one side of a valley, across a channel and up the other side.
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Waterfall
The sudden and often vertical drop of a river along its course.
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Gorge
A narrow, steep sided valley.
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Meander
A bend or curve in the river channel.
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Hard Engineering
Building artificial structures aimed at controlling natural processes.
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Soft Engineering
Tries to work with the natural river system and avoids building on areas liable to flooding.
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Other cards in this set

Card 2

Front

The carrying of sediment downstream from the point where it has been eroded to where it is deposited.

Back

Transportation

Card 3

Front

The dropping of sediment that has been transported by a river.

Back

Preview of the back of card 3

Card 4

Front

The power of the volume of water moving in a river.

Back

Preview of the back of card 4

Card 5

Front

When large rocks carried by the river hit the bed and banks, causing bits to break off.

Back

Preview of the back of card 5
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