Wind Erosion /Deposition

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Presentation transcript:

Wind Erosion /Deposition Earth Science Mr. Cloud

Balancing Rock: Arches National Park

Delicate Arch: Arches National Park (Moab, Utah)

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)

“Eye of God”- Arches National Park

The Double Arch- Arches National Park

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

Mechanisms of Wind Erosion Deflation Sandblasting

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.

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.

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

Ventifact: Mojave Desert, CA

Anatomy of a Sand Dune

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

Types of Sand Dunes