Erosion n Erosion the process in which weathered

Erosion

n Erosion – the process in which weathered particles are picked up and moved from one place to another.

Weathering and erosion are two very different processes that tend to act sequentially #21

Erosion n Erosion is the movement of rock particles #22

Erosion n Erosion transports weathered rock material #23

Erosion n Water, wind and ice are agents of erosion #24

Erosion n Water, wind and ice are agents of erosion #24

n Deposition – the part of the erosion process in which sediment is placed in a new location

Deposition n Deposition occurs where the agents (forces) of erosion lay down sediment #25

Deposition n Dirt from mountain tops can be carried downhill to fill in valleys. This is called deposition #26

Deposition Example n Dirt from mountain tops can be carried downhill to fill in valleys.

Deposition Example n Area of the shoreline made up of material (usually sand) deposited by waves.

n Gravity’s Effect On Erosion and Deposition

Mass Movement n Movement of rock, soil, or snow, down a slope.

n Waves erode the shoreline #27

n n #28 What are three major ways in which erosion moved sediment? water wind ice

n Weathering and erosion wear down, and deposition fills in Earth’s surface #29 n delta

D E L T A

n Rivers can carve a valley through rock with a river flowing through it while a glacier can carve a valley where only rocks remain. When the glacier retreats or melts it leaves behind a valley without water #31

n Rivers can carve a valley through rock with a river flowing through it while a glacier can carve a valley where only rocks remain. When the glacier retreats or melts it leaves behind a valley without water #31

n n If there is a deep valley without any water. How did it form? Possible? glacier

n Wind, water, and gravity all combine to move dirt around. Of the three, water is responsible for moving the most amount of soil #32

n The agent of erosion that carries the largest rocks is glaciers #30

Erosion

Review n How are weathering and erosion similar?

Review n How are weathering and erosion different?

Review n What is erosions?

Review n What is weathering?

Review n What are the two main types of weathering?

Review n Three agents of erosion?

Review n Erosion moves S________?

Review n What erosion agent moves the largest rocks?

Review n What erosion agent moves the most sediment?