1. MOUNTAINS

2. Mountains Mt. Everest ( 29, 035 ft. or 8, 850 m )
Is the tallest mountain in the world…..

3. What is a Mountain?
A large mass of rock or landform that rises a great distance above its base (about 300 meters)

4. Where do mountains form?
Generally, along convergent plate boundaries: (Collision)

5. How do mountains form?
Mountains form from rocks that have been permanently deformed under stress.

6. What is the Tallest Mountain in the United States?
 Mount McKinley, Alaska with an elevation of 20, 320 feet or 6194 meters

7. What is the Tallest Mountain in the World?
 Mount Everest on the Nepal/Tibet border with an elevation of 29,029 feet or 8,848 meters

8. 3 Types of mountains: Folded Mountains Dome Mountains
Fault-block Mountains

9. EX. Appalachian Mountains
1) Folded Mountains
 formed by the folding of rock layers during plate collisions
EX. Appalachian Mountains

10. The Folding Process

11. Folded Mountains

12. Types of folds in Rock Anticline  Upward fold
Syncline  Downward fold

13. Where is the Anticline?

14. 2) Dome Mountain EX. Adirondack Mountains
 a circular folded mountain, Formed by UPLIFT
EX. Adirondack Mountains

15. Dome Mountain

16. 3) Fault-Block Mountains
 formed when normal faults uplift a block of rock
EX. Sierra Nevada Mountains

17. Fault-Block Mountains

18. Movement can occur in several directions in Fault-Block Mountains

19. Fault-Block Mountains
Teton Mountain Range, Wyoming

20.  A normal fault occurs when the hanging wall moves down (Divergent Boundaries release tension and rocks slide down)
 A reverse fault occurs when the hanging wall moves up (Convergent Boundaries push rocks up and over)

21. How is a thrust fault formed?
A thrust fault is formed when compressive stresses act over great distances.
A thrust fault is a reverse fault in which the fault plane dips 45 degrees or less from the horizontal.

22. What type of fault occurs when rock on opposite sides of a fault plane move horizontally past each other?
 A Strike-slip Fault

23. Identify the Fault types:

24. There are also underwater mountains: Seamounts
Ships use SONAR to make 3-D images of underwater features

25. SOL Review: What do circles on a topographic map indicate?