1. Erosion and Deposition
Chapter 8

2. Changing Earth’s Surface
Erosion
Sediment
Deposition
Mass Movement
Gravity
Creep
Mudslides
Landslides
Slump

3. Changing Earth’s Surface
Weathering, erosion and deposition act to wear down and build up Earth’s surface
Gravity pulls sediment downhill in the process of mass movement. There are 4 main types of mass movement: landslides, creep, slump and mudslides

4. Water Erosion Runoff Rill Gully Stream River Tributary Divide
Flood plain
Meander
Oxbow lake
Alluvial fan
Delta

5. Water Erosion Stalactite Stalagmite Karst Topography Drainage Basin
Groundwater

6. Water Erosion
Moving water is the major force of erosion that has shaped Earth’s land surface
A river may form V-shaped valleys, waterfalls, meanders, oxbow lakes and flood plains
When a river slows down it deposits some of the sediment load it carries, forming features such as alluvial fans and deltas

7. The Force of Moving Water
Energy
Potential energy
Kinetic energy
Abrasion
Load
Friction
turbulence

8. The Force of Moving Water
When gravity pulls water down a slope, water’s potential energy changes to kinetic energy
Most sediment washes or falls into streams, or is eroded from the streambed by abrasion
The greater a rivers slope or volume of flow, the more sediment it can erode

9. Glaciers Glacier Valley Glacier Continental Glacier Ice Age Fiord
Cirque
Till
Moraine
Kettle Lake
Glacial Lake
Plucking
Arete
Horn

10. Glaciers
The 2 kinds of glaciers are valley glaciers and continental glaciers
Glaciers erode the land through plucking and abrasion. Melting glaciers deposit sediment
Most famous Glacial landform is the Matterhorn on the border between Italy and Switzerland in the Pennine Alps. Has an elevation of 4,478 meters.

11. Matterhorn

12. Glaciers Chugach National Forest Child’s Glacier
Glaciers! They have sculpted much of America's beauty. Yet, there are few places today where glaciers still wage their ancient battle against the land. Southcentral Alaska's 5.6-million-acre Chugach National Forest (pronounced "Chew'gatch") is one of these places - a land of glacial diamonds set on a ring of fire. The slow, relentless force of glacial ice has not been the only land-shaping agent: Forces as quick and powerful as earthquakes, and as dramatic as volcanoes, have played a role in creating one of the most diverse landscapes in Alaska, if not America.

13. Waves & Wind Erosion Key Terms
Beach
Longshore Drift
Spit
Sand Dune
Deflation
Loess
Glacial Flood Plain

14. Waves
The energy of ocean waves comes from wind blowing across the water’s surface and transferring energy to the water
Ocean waves hitting land cause erosion through impact and abrasion. Waves also move and deposit sediment along the shore.
Much of the sand on N.C.’s Cape Hatteras originally came from the Hudson River, Long Island and Southern New England

15. Wind Erosion
Wind causes erosion mainly through deflation, the blowing of surface materials
Landforms created by wind deposition include sand dunes and loess deposits
There are two main sources of wind-deposited clay and silt: deserts and glacial meltwater floodplains