3.0 - Seafloor Features

Front

What type of boundary occurs when two tectonic plates slide past each other?

Back

Transform boundary.

Front

What is a seamount?

Back

A seamount is an underwater mountain formed by volcanic activity.

Front

True or False: The tectonic plates of the Earth are in constant motion.

Back

True.

Front

What is an abyssal plain?

Back

An abyssal plain is a flat, deep area of the ocean floor.

Front

Where does new ocean floor form?

Back

At the mid-ocean ridge.

Front

What is a mid-ocean ridge?

Back

A mid-ocean ridge is an underwater mountain range formed by plate tectonics.

Front

What is the continental shelf?

Back

The continental shelf is the submerged border of a continent that slopes gently into the ocean.

Front

What is the continental slope?

Back

The continental slope is the steep descent from the continental shelf to the ocean floor.

Front

What is a trench in oceanography?

Back

A trench is a deep, narrow depression in the ocean floor.

Front

What is the difference between a seamount and a guyot?

Back

A seamount is an underwater mountain, while a guyot is a flat-topped seamount.