Presentation is loading. Please wait.

Presentation is loading. Please wait.

Types of Plate Boundaries

Similar presentations

Presentation on theme: "Types of Plate Boundaries"— Presentation transcript:

1 Types of Plate Boundaries
© Copyright 2008.  M. J. Krech. All rights reserved.

2 There are four types of Plate Boundaries.

3 The first type of plate boundary Divergent means: moving apart.
is called Divergent. Divergent means: moving apart.

4 The Mid-Atlantic Ridge is an example of a Divergent Plate Boundary :

5 Another example of a Divergent Plate Boundary is Iceland, which is splitting apart down the middle.

6 Features of a Divergent Boundary: (1) Rift Valley
The Álfagjá Rift Valley in southwest Iceland Most of the world’s rift valleys are on the ocean floor.

7 (2) Mid-Atlantic Ridge Mountains or Volcanoes

8 The second type of plate boundary is called Convergent.
Convergent means: moving together.

9 There are two types of Convergent Boundaries.
The first is: Convergent - Subduction. In this type of Convergent Boundary, the denser plate subducts under the less dense plate.

10 Features of a Convergent- Subduction Boundary are:
Volcanic Mountain Ranges Trenches

11 The Andes Mountains are an example of a Volcanic Mountain Chain formed by a Convergent-Subduction Boundary. The Nazca Plate is subducting under the South American Plate, forming the Andes Mtns.

12 The Mariana Trench is an example of a Trench formed by a Convergent-Subduction Plate Boundary.
The Pacific Plate is subducting under the Eurasian Plate.

13 Another type of Convergent Plate Boundary is the Convergent - Collision Boundary.
Two plates of the same density collide and form Folded Mountains.

14 Features of a Convergent-Collision Boundary are:
Folded Mountains

15 An example of a Convergent-Collision
Folded Mountain is the Himalayan Mtns.

16 with the Eurasian continent.
India is colliding with the Eurasian continent.

17 Another view:

18 The fourth type of Plate Boundary is the Transform-Sliding Boundary.
These plates slide past each other.

19 The Features of a Transform-Sliding Boundary are:
Earthquake Zone or Fault Zone

20 An example of a Transform-Sliding Plate Boundary is the San Andreas Fault Zone in California.

21 Views from the air of the San Andreas Fault Zone.

22 The Mid-Atlantic Ridge also has sliding (transform) boundaries.

23 The End BONUS: (1) Does your state sit on a Plate Boundary? (2) How do you know?

Download ppt "Types of Plate Boundaries"

Similar presentations

Ads by Google