EROSION

HOW WIND SPEED AFFECT SEDIMENT MOVEMENT

• The faster the wind is the faster the sediments will move.
• It can wear down the rock by abrasion.
• Sandblasting also erodes rocks by damaging the surface of rocks.

DUNES

• Mounds of wind deposited sand
• They move in the same direction that the wind moves
• Wind constantly moves sand on dunes
• Dunes have two faces

LOESS

• Thick deposits of this windblown, fine grained sediment
• Fine grained sediment travels farther because it is smaller
• This can cause loess to be far away from the source

DESERT PAVEMENT

• Deflation removes fine sediment and leaves behind heavy rocks that can't be lifted
• The left over rocks from the desert pavement

GLACIER FORMATION

• Glaciers form when ice builds up enough to go downhill
• As move they get larger by picking up more sediment
• Can only form when ice can be on land all year

HOW GLACIERS SHAPE THE LAND

• As they move they pick up sediment and rocks qnd move them
• They also scratch and abrade the rocks and soil below them.
• They deposit rocks and sediment
• They can form lfeatures in rocks

THE PROCESS OF EROSION AND DEPOSITION BY GRAVITY

• Erosion wears away at rocks and breaks them down
• Deposition is the process that sediment is lifted and moved and then put down

MASS MOVEMENT

• Mass movement occurs whenthere is a large shifting of materials
• Gravity can cause mass movement

TYPES OF MASS MOVEMENT

• Creep: The slow movement of material downslope
• Rockfall: It occurs when rocks fall down a steep slope
• Landslide: This

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