1. Wind Erosion /Deposition
Earth Science
Mr. Cloud

2. Balancing Rock: Arches National Park

3. Delicate Arch: Arches National Park (Moab, Utah)

4. Dusty (my older bro) drinking water from a canteen at Arches
Dusty (my older bro) drinking water from a canteen at Arches. (delicate arch can be seen far in the background)

5. “Eye of God”- Arches National Park

6. The Double Arch- Arches National Park

7. Mr. Cloud (4th Grade): “Too cool for School”

8. Mechanisms of Wind Erosion
Deflation
Sandblasting

9. Deflation
Deflation takes place in areas with small, loose sediments that are exposed to the atmosphere.
Winds readily blows away loose sediment, lowering the land surface
Lowering will continue until all loose sediment is eroded, leaving the bedrock exposed.

10. Sandblasting
wind erodes sediment which strikes the base of rock outcrops, telephone poles, or anything standing in its way
the base of the structure weathers more rapidly than the top!
WIND ABRASION!
Photographed in Tin Tarabine, Sahara Desert, southern Algeria.

11. Ventifact: shaped by very strong winds in Taylor Valley, Canada

12. Ventifact: Mojave Desert, CA

13. Anatomy of a Sand Dune

14. caused by wind erosion and deposition
Sand Dunes of Mars
caused by wind erosion and deposition

15. Types of Sand Dunes