Transcript Erosion - Denton ISD

Weathering
Weathering
And
And
Erosion
Erosion
The Different Types of Weathering
Weathering
Physical and Chemical breakdown of rock
Physical
Chemical
- Root Pry
- Oxidation
-Exfoliation
- Acid Rain
-Frost Action
-Wind Abrasion
Why is this rock red?
OXIDATION
Root Pry
What will happen to the
rock the tree is growing in.
The rock breaks apart
Exfoliation
Peeling away of
rock. This makes
the half dome.
Frost Action or ice wedging slowly breaks up this
sedimentary rock into unusual shapes.
What could have caused these rocks to
become rounded.
WIND ABRASION
1908
to
1969
What could have eaten away this statue?
Acid Rain
Erosion
Process of wearing away the earth’s surface.
Types of erosion:
• Wave Action
• Avalanche •Creep
• Running Water
•Glaciers
• Rock Fall
• Landslides
• Slump
• Mud Flow
Wave action - when waves hit the rocks and
pieces of rock break off.
Running water eroded the sides of this canyon
and created the V-shaped valleys.
Mass Wasting - landslides
A slump is when a clump of earth breaks apart and
falls
Creep.
Land slowly slipping over many years
from temperature or water.
This avalanche is an example of
Mass Wasting
This glacier carves out a U-shaped valley
by dragging rocks and boulders with it
Deposition
• When erosion
stops and
particles that
were moving are
settled in a new
location.