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Waves and Wind

Gloria, Hayden, and Olandis

Hayden Vosseller

on 22 May 2014

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Transcript of Waves and Wind

Waves and Wind
By Gloria, Hayden, and Olandis
Deposition by Wind
Erosion by Wind
Weakest form of erosion

Wind causes erosion by deflation and abrasion
Deflation- the process by which wind removes surface materials

Main way wind causes erosion

Wind picks up sediment and moves it

Deflation doesn't have much effect on land
Abrasion- when sand picked up by wind polishes rock, but doesn't really do any erosion

It used to be believed that abrasion caused desert landforms

Energy in waves come from wind that blows across the waters surface.
A wave changes as it approaches the land.
Forward moving water provides force that shapes the land.
Deposits By Waves
Erosion by Waves
How Waves Form
Erosion by Wave
How waves form
:http://chloeandgeorgia.files.wordpr ess.com/2013/02/surfing-10-e1361363683809.gif
Deposits by wave
Erosion by wind
Deposits by wind

Beaches, spits, sandbars, and barrier beaches are created by waves
Wave-cut cliff, sea cave, sea arch, headland, stack, and stamp are forms of erosion by waves.
Sand Dunes
Sand Dunes- sand comes in many shapes and sizes by wind

Some are long, with parallel ridges, while others are U-shaped
They move over time little by little
The sand shifts with the wind from one side of dune to the other
Loess Deposits
Loess Deposits-particles of clay and silt, that is deposited in layers far from its source.

It helps to form fertile soil.
Many areas with thick loess deposits are valuable farmland.
All sediment picked up by wind eventually falls to the ground.
happens when the wind slows down or some obstacle
They may form sand dunes and loose deposits.
Spits- a narrow point of land going into the ocean

Sandbars- a long narrow sand bank

Barrier Beaches- a sand ridge that rises slightly above the ocean
Full transcript