Plate Tectonics

Front

What is Plate Tectonics?

Back

The theory that explains the structure and movement of Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

Front

What are the three main types of plate boundaries?

Back

1. Convergent boundaries: where plates collide. 2. Divergent boundaries: where plates move apart. 3. Transform boundaries: where plates slide past each other.

Front

What is a divergent plate boundary?

Back

A boundary where two tectonic plates move away from each other, often resulting in the formation of new crust, such as at mid-ocean ridges.

Front

What geological features are commonly found at divergent boundaries?

Back

Mid-ocean ridges and rift valleys.

Front

What is a convergent plate boundary?

Back

A boundary where two tectonic plates collide, leading to subduction or mountain formation.

Front

What geological features are commonly found at convergent boundaries?

Back

Ocean trenches and mountain ranges.

Front

What is a transform plate boundary?

Back

A boundary where two tectonic plates slide past each other horizontally, causing earthquakes.

Front

What is a hot spot?

Back

A location where magma from deep within the mantle rises to the surface, often creating volcanic islands.

Front

What is the significance of mid-ocean ridges?

Back

They are underwater mountain ranges formed by divergent tectonic plates, where new oceanic crust is created.

Front

What is subduction?

Back

The process by which one tectonic plate moves under another plate and sinks into the mantle.