Plate Boundaries

Front

What is a divergent boundary?

Back

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

Front

What forms at a divergent, continental to continental boundary?

Back

Rift valley.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move towards each other, leading to one plate being forced below another, often resulting in mountains or volcanic activity.

Front

At what boundary does a volcanic island arc occur?

Back

Oceanic-oceanic convergent boundary.

Front

What subducts at converging oceanic-oceanic plates?

Back

The older, more dense oceanic plate.

Front

What is a transform boundary?

Back

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

Front

At what boundary does a fault form?

Back

Continental-continental transform boundary.

Front

What boundary forms a fault?

Back

Transform boundary.

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.

Front

What is a mid-ocean ridge?

Back

A mid-ocean ridge is an underwater mountain range formed by the upwelling of magma at divergent boundaries.