The Forces of Weathering and Erosion

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Weathering And Erosion
Weathering And Erosion
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The Different Types of Weathering
There are many different types of
weathering. Here are a few

• Oxidation
• Root Pry
• Exfoliation
• Frost Action

• Wind Abrasion
• Frost Action
• Acid Rain

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This rock is red because of the oxidation of iron
in the sediment when the rock was being formed.
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Root Pry
The tree is growing in the rock and soon the rock
will break apart because of the tree roots.
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This is a picture of the Half Dome. The rock is
peeling away from the mountain in layers just
like an onion. This is exfoliation.
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Frost Action or ice wedging slowly breaks up this
sedimentary rock into unusual shapes.
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These rocks have been blasted by wind and sand
causing them to become rounded. WIND ABRASION
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1908 to 1969 Acid rain has
eaten away this limestone statue.
Acid Rain
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Erosion
There are many kinds of Erosion. Here are a few

• Wave Action
• Running Water
• Landslides

• Creep
• Rock Fall
• Mud Flow

• Avalanche
• Glaciers
• Slump

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Wave action is when waves hit the rocks and
pieces of rock break off.
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In this picture the running water eroded the
sides of this canyon and created the V-shaped
valleys.
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This is a picture of a landslide. A type of mass
wasting.
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In this picture the land has slumped into the
road below.
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This is a diagram of creep. The hillside slowly
slips over many years from temperature or water.
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This is a picture of an avalanche. It is similar
to a landslide with ice and snow instead of rock.
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This is a picture of a glacier which carves out a
U-shaped valley where it flows dragging rocks and
boulders along the way.