Keyterms for Rivers Unit

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  • Created by: Ankita98
  • Created on: 10-04-14 22:44
Abrasion
the way rocks in rivers or glaciers scrape and erode the rocks they are moving over
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Attrition
the way that rocks in rivers are worn down by rubbing against each other
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Solution (Erosion)
Slightly acidic water dissolving rocks
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Hydraulic Action
Shear force of water eroding the edges of a river
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transportation
the carrying of rock particles
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Traction
Pebbles and larger sediment are rolled along the sea bed.
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Saltation
Load is bounced along the sea bed, eg small pieces of shingle or large sand grains.
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Suspension
Small particles are carried in water, eg silts and clays, which can make the water look cloudy.
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Solution (Transportation)
Load can come from cliffs made from chalk or limestone, and calcium carbonate is carried along in solution.
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Deposition
the dropping of rocks and other materials by e.g. glaciers and rivers
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Alluvium
material deposited by a river
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Delta
an area of alluvium at the mouth of a river when it has split up into distributaries
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flood plain
a wide valley, usually in the lower course of a river
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meander
a large bend in a river
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oxbow lake
a former meander of a river
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mouth
the end point of a river where it reaches the sea or a lake
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river beach
a build up of material deposited in the inside bend of a river
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river cliff
the steep bank made by erosion on the outside bend of a river
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source
the start of a river
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tributary
a smaller river which flows into a larger one
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U-shaped valley
one that has steep sides and a flat bottom
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V-shaped valley
a valley that has been eroded by a river
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Other cards in this set

Card 2

Front

the way that rocks in rivers are worn down by rubbing against each other

Back

Attrition

Card 3

Front

Slightly acidic water dissolving rocks

Back

Preview of the back of card 3

Card 4

Front

Shear force of water eroding the edges of a river

Back

Preview of the back of card 4

Card 5

Front

the carrying of rock particles

Back

Preview of the back of card 5
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