Plate Tectonics Review Mr. Hamlin

Front

Who proposed the theory of Continental Drift?

Back

Alfred Wegener

Front

What geologic event frequently occurs when lithospheric plates collide or move apart?

Back

Earthquake

Front

What happens to new seafloor as it moves away from the mid-ocean ridge?

Back

It cools, becomes denser, and sinks.

Front

Where does seafloor spreading take place?

Back

Along a mid-ocean ridge.

Front

What is likely to occur at the boundary where two tectonic plates slide past each other?

Back

Earthquake.

Front

What are tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is a mid-ocean ridge?

Back

An underwater mountain range formed by plate tectonics.

Front

What is subduction?

Back

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

Front

What is the difference between convergent and divergent boundaries?

Back

Convergent boundaries collide, while divergent boundaries move apart.