plate tectonics

Front

What was discovered in the oceans after WWII that supported Wegener's theory of continental drift?

Back

Mountains in the middle of the ocean.

Front

What is a geographical example of a Convergent Oceanic-Continental (O-C) boundary?

Back

Andes Mountains.

Front

What geologic feature is typically found at a divergent boundary between two pieces of oceanic crust?

Back

Mid-Ocean Ridge.

Front

What technology do scientists use to map the ocean floor?

Back

Sonar.

Front

Where is the youngest seafloor located in the Atlantic Ocean?

Back

Towards the middle of the ocean.

Front

What is the theory that explains the movement of Earth's plates?

Back

Plate tectonics.

Front

What are the three main types of plate boundaries?

Back

Convergent, Divergent, and Transform boundaries.

Front

What occurs at a convergent boundary?

Back

Plates move towards each other, often causing one plate to be forced beneath another.

Front

What is the process called when an oceanic plate is forced under a continental plate?

Back

Subduction.

Front

What is the significance of the Mid-Atlantic Ridge?

Back

It is a divergent boundary where new oceanic crust is formed.