6.2/6.3 Flashcard #2 Practice

Front

What is an island arc?

Back

A geologic feature formed from the convergence of two oceanic plates where cooling lava eventually forms a group of islands.

Front

What is a mid-ocean ridge?

Back

An undersea mountain range where new crust is generated.

Front

What type of plate boundary is where ridge push would happen?

Back

Divergent Boundary.

Front

The Mid-Atlantic Ridge is what type of plate boundary?

Back

Divergent Boundary.

Front

What type of plate boundary is where slab pull would happen?

Back

Convergent Boundary.

Front

Define convergent boundary.

Back

A tectonic plate boundary where two plates move towards each other, often causing one plate to be forced beneath the other.

Front

Define divergent boundary.

Back

A tectonic plate boundary where two plates move away from each other, allowing magma to rise and create new crust.

Front

What is slab pull?

Back

A tectonic process that occurs at convergent boundaries, where the weight of a subducting plate pulls the rest of the plate down into the mantle.

Front

What is ridge push?

Back

A tectonic process that occurs at divergent boundaries, where the elevated position of the mid-ocean ridge causes the plates to slide away from the ridge.

Front

What is subduction?

Back

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