Types of Plate Boundaries

Front

What is the Theory of Plate Tectonics?

Back

The Theory of Plate Tectonics explains how the Earth's outer shell, or lithosphere, is divided into several plates that glide over the semi-fluid asthenosphere beneath. This movement causes geological phenomena such as earthquakes, volcanic activity, and mountain building.

Front

What are the two types of crust?

Back

The two types of crust are continental crust, which forms the landmasses, and oceanic crust, which forms the ocean floors.

Front

What happens at a convergent plate boundary?

Back

At a convergent plate boundary, two tectonic plates collide, which can lead to the formation of mountains, earthquakes, and volcanic activity.

Front

What is a divergent plate boundary?

Back

A divergent plate boundary occurs when two tectonic plates move away from each other, leading to the formation of new crust as magma rises to the surface, such as at mid-ocean ridges.

Front

What is a transform plate boundary?

Back

A transform plate boundary occurs when two tectonic plates slide past each other horizontally, which can cause earthquakes.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another plate and sinks into the mantle, often leading to volcanic activity.

Front

What geological features are formed at divergent boundaries?

Back

Divergent boundaries can create mid-ocean ridges, rift valleys, and new oceanic crust.

Front

What are volcanic islands?

Back

Volcanic islands are landforms created by volcanic activity, often formed at subduction zones where one plate moves under another, causing magma to rise and erupt.

Front

How do earthquakes occur?

Back

Earthquakes occur when there is a sudden release of energy in the Earth's crust due to the movement of tectonic plates, often at fault lines.

Front

What is the Mid-Atlantic Ridge?

Back

The Mid-Atlantic Ridge is a divergent boundary located in the Atlantic Ocean where new oceanic crust is formed as tectonic plates move apart.