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Types of Plate Boundaries© Copyright 2008. M. J. Krech. All rights reserved.
There are four types of Plate Boundaries.
The first type of plate boundary Divergent means: moving apart.is called Divergent. Divergent means: moving apart.
The Mid-Atlantic Ridge is an example of a Divergent Plate Boundary :
Another example of a Divergent Plate Boundary is Iceland, which is splitting apart down the middle.
Features of a Divergent Boundary: (1) Rift ValleyThe Álfagjá Rift Valley in southwest Iceland Most of the world’s rift valleys are on the ocean floor.
(2) Mid-Atlantic Ridge Mountains or Volcanoes
The second type of plate boundary is called Convergent.Convergent means: moving together.
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.
Features of a Convergent- Subduction Boundary are:Volcanic Mountain Ranges Trenches
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.
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.
Another type of Convergent Plate Boundary is the Convergent - Collision Boundary.Two plates of the same density collide and form Folded Mountains.
Features of a Convergent-Collision Boundary are:Folded Mountains
An example of a Convergent-Collision Folded Mountain is the Himalayan Mtns.
with the Eurasian continent.India is colliding with the Eurasian continent.
The fourth type of Plate Boundary is the Transform-Sliding Boundary.These plates slide past each other.
The Features of a Transform-Sliding Boundary are:Earthquake Zone or Fault Zone
An example of a Transform-Sliding Plate Boundary is the San Andreas Fault Zone in California.
Views from the air of the San Andreas Fault Zone.
The Mid-Atlantic Ridge also has sliding (transform) boundaries.
The End BONUS: (1) Does your state sit on a Plate Boundary? (2) How do you know?
Theory of Plate Tectonics
Divergent Boundary spreads apart, or divides, making new ocean floor along mid ocean ridges. Convergent Boundary comes together. Ocean crust sinks.
Types of Plate Boundaries
Major Geological Events
Scientists identify the boundaries between two plates by the plate movement. There are three types of plate boundaries: 1. Divergent 2. Convergent.
Aim: How do the plates of the Earth move? Do Now: Using the worksheet, “Plate Movement: In out and Sideways”, answer the following questions below. - What.
Factors that Cause Tectonic Plate Movement
Using Google Earth to See the World
Plate Tectonics Causes of Plate Tectonics Plate Boundaries.
Plate Boundaries yipee. Continental Drift _________ proposed the theory that the tectonic plates are moving over the mantle. This was supported by fossil.
Pangea and Tectonic Boundaries Also spelled Pangaea!
Topic 12 continued: Tectonic Plates There are three (3) types of plate boundaries: 1) divergent plate boundary – where two plates separate or diverge.
Bell Work: September 3 Define The Plate Tectonic Theory What are some ways that plate tectonics change the surface of the earth?
Plate Boundaries and Motion
Plate Boundaries. Continental Drift Review Breakup of Pangaea Future Plate Movement Animation.
Aim: Aim: What are the different types of plate boundaries and what are the geologic activities associated with these boundaries? Plate Boundary I.
There are 3 main types of plate boundaries: 1. Divergent 2. Convergent 3. Transform.
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