Ever Changing Earth Vocabulary

Front

What is the hypothesis that states the continents once formed a single landmass, broke up, and drifted to their present locations?

Back

Continental Drift

Front

What type of fault occurs when the hanging wall slides upward due to compression in the crust?

Back

Reverse Fault

Front

What is the region where an oceanic plate sinks down into the asthenosphere at a convergent boundary?

Back

Subduction Zone

Front

What is an undersea mountain chain where new ocean floor is produced?

Back

Mid-ocean Ridge

Front

What are openings in Earth's crust from which molten rock, dust, ash, and hot gases flow or erupt?

Back

Volcano

Front

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

Back

Plate Tectonic Theory

Front

What is the process by which new oceanic crust is formed at mid-ocean ridges?

Back

Sea-floor Spreading

Front

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

Back

Transform Boundary

Front

What is the term for the layer of the Earth that is semi-fluid and allows tectonic plates to move?

Back

Asthenosphere

Front

What is the geological term for a sudden release of energy in the Earth's crust that creates seismic waves?

Back

Earthquake