Plate Tectonics Review

Front

What is a convergent plate boundary?

Back

A convergent plate boundary is where two tectonic plates move toward each other, often causing one plate to be forced beneath the other, leading to subduction, mountain formation, or volcanic activity.

Front

Where is the oldest rock typically found in relation to tectonic plates?

Back

The oldest rock is usually found farthest from mid-ocean ridges, often at continental margins or subduction zones.

Front

What is a divergent plate boundary?

Back

A divergent plate boundary is where two tectonic plates move away from each other, leading to the formation of new crust as magma rises to the surface, often creating rift valleys or mid-ocean ridges.

Front

What geological feature forms at a divergent plate boundary?

Back

A rift valley forms at a divergent plate boundary.

Front

What type of plate boundary is associated with the formation of islands?

Back

Islands are mostly formed at convergent plate boundaries, where tectonic plates collide and create volcanic activity.

Front

What is a transform plate boundary?

Back

A transform plate boundary is where two tectonic plates slide past each other horizontally, leading to earthquakes and fault lines.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate is forced under another, often leading to volcanic activity and the formation of deep ocean trenches.

Front

What is a rift valley?

Back

A rift valley is a lowland region formed by the divergence of tectonic plates, characterized by steep walls and a central block that has dropped down.

Front

What are tectonic plates?

Back

Tectonic plates are large, rigid pieces of the Earth's lithosphere that move and interact at their boundaries, causing geological activity.

Front

What is the significance of mid-ocean ridges?

Back

Mid-ocean ridges are underwater mountain ranges formed by divergent tectonic plates, where new oceanic crust is created.