1. Types of Landforms Caused by Erosion & Deposition
LEQ: How do erosion and deposition affect Earth’s surface?
Types of Landforms Caused by Erosion & Deposition

2. Remember….
Landforms created when sediment is removed from an area are caused by __________.
Landforms created when sediment is placed or dropped in a new area are caused by __________________.

3. Erosion by Gravity What erosional force causes Mass Movements?
_______________
Name the four types of mass movement.
_____________/__________

4. Erosion by Gravity
_________
_________lide
_____________
___________

5. Running Water
Any water that runs over the Earth’s surface is considered __________.
Moving water is a MAJOR agent of __________!
Some areas have more runoff than others.
HILLY areas have more runoff than flat areas.
Areas with a LOT of rain have more runoff than areas with little rain.
Areas with FEW plants have more runoff than areas with many plants.

6. Running Water
Like the other agents of erosion, running water creates MANY different Landforms.
_______________
_____________ Fan (p. 215)
Meander
______________
Flood Plains
Deltas
Let’s look at the picture & decide if they were created by erosion or deposition (p )

7. Running Water _________
V-Shaped Valley
Running Water _________
River flows through a deep ____- _________ valley near its source. As the river flows, it cuts the valley ________.

8. Running Water

9. Running water___________
Running Water cont.
Waterfalls
Running water___________
When the river flows over hard rock that is difficult to erode it creats steep drops or waterfalls.

10. Running Water - Waterfall

11. Running Water __________
Running Water cont.
Alluvial Fans
Running Water __________
A wide, sloping deposit of sediment formed where a stream leaves a mountain range.

12. Running Water – _________ _______

13. Running Water _________
Running Water cont.
Meanders
Running Water _________
A loop-like bend in the course of a river (p. 214)

14. Running water - _________

15. Running Water _________
Running Water cont.
Oxbow Lake
Running Water _________
A meander that has been cut off from the river. (p.214)

16. Running water – ________ _______ Lake

17. Running water ___________
Running Water cont.
Flood Plains
Running water ___________
The FLAT area on the banks of the river where rich soil develops when the river drops sediments when it floods.

18. Running Water – _________ ________

19. Running Water ___________
Running Water cont.
Deltas
Running Water ___________
Where the river flows into the ocean, it deposits sediments, forming a delta.

20. Running water - _________

21. A cliff cut away by waves Spit Wave ____________
Find Waves…
Wave Cut Cliff
Wave __________
A cliff cut away by waves
Spit
Wave ____________
Formed as sand deposits along the shore (looks like a finger)

22. Formed by wave action; deposit of sand.
WAVES CONT.
Sand Bar
Wave _____________
Formed by wave action; deposit of sand.

23. PICTURES

24. Find Groundwater…
Caves
Groundwater _______________
Water reacts with limestone in rocks & dissolves it, leaving a cave behind.
Stalagmite
Groundwater DEPOSITION
Slow dripping builds up cones from the cave floor.

25. GROUNDWATER CONT. Stalactite Groundwater _______________
Hangs like an icicle from the roof of cave; deposit of calcite
Karst Topography
Groundwater EROSION
A sinkhole created when the roof of a cave collapses

26. PICTURES

27. Karst topography

28. Created by Wind ___________ Fine, wind deposited sediment Sand Dune
Find Wind…
Loess
Created by Wind ___________
Fine, wind deposited sediment
Sand Dune
Wind DEPOSITION
Found near beaches & deserts; hills of sand

29. PICTURES

30. A valley scooped out by a glacier Kettle Glacial _____________
Find Glaciers…
U-Shaped Valley
Glacial ____________
A valley scooped out by a glacier
Kettle
Glacial _____________
Forms when a depression, left from glacial till, is filled in by melting ice.

31. GLACIERS CONT.
Moraine
Glacial ___________ Formed where a glacier deposits mounds or ridges of till

32. PICTURES