A plate boundary is a line where the plates under the Earth's surface meet.
3 Main Types of Plate Boundaries:
1. Transform Plate Boundary
2. Divergent Plate Boundary
3. Convergent Boundary
-When two plates slide past each other.
Example of Transform Boundary
-The San Andreas Fault is a very popular earthquake that happened between the Pacific Plate and the North-American Plate.
- It happened on January 9, 1857, in southern California and didn't have a horrendous effect, but the predictions for the future are worse.
-When two plates move apart.
Example of Divergent Boundary
-The East African Great Rift Valley is a famous example of a divergent boundary on the Somali Plate and the Nubian plate.
- The rift is a narrow zone that is in the process of splitting at a rate of 6–7 mm yearly.
-Ocean to Continent: When two plates move towards each other and one plate is denser the another, the more dense plate goes underneath the less dense part.
Example of Convergent Boundary- Ocean to Continent
-The Andes Mountains are a very famous landform caused by convergent boundaries. They are caused by the South American, Nazca, and Antarctic Plate.
-They are one of the world's longest mountain ranges. It has varied land with glaciers, volcanoes, grassland, desert, lakes, and forest. These mountains go from Northern Venezularom, through Colombia, Ecuador, Peru, Bolivia, Argentina, and Chile.
-Continent to Continent: When two plates similar in density move towards each other, they crash, squeeze together, and move to a higher elevation.
Example of Convergent Boundary- Continent to Continent
-The Himalayan Mountains are a mountain range caused by the Indian and Eurasian Plate.
-They separate the Indian subcontinent from the Tibetan Plateau. The Himalayan range has many of the Earth's highest peaks, including Mount Everest.
A powerpoint on the three main types of plate boundaries with examples.