WBHS Earth Systems: Seafloor Spreading

Front

What is the cycle of heating occurring in the mantle called?

Back

Convection currents

Front

Where is the OLDEST seafloor located?

Back

Farthest from the mid-ocean ridge

Front

Who was the first scientist to propose seafloor spreading?

Back

Harry Hess

Front

Where does sea-floor spreading begin?

Back

Mid-ocean ridge

Front

What is an undersea mountain range called?

Back

Mid-ocean ridge

Front

What is the process by which new oceanic crust is formed?

Back

Seafloor spreading

Front

What geological feature is formed at divergent boundaries?

Back

Mid-ocean ridges

Front

What is the significance of convection currents in the mantle?

Back

They drive the movement of tectonic plates.

Front

What is the relationship between mid-ocean ridges and earthquakes?

Back

Earthquakes often occur along mid-ocean ridges due to tectonic activity.

Front

What evidence supports the theory of seafloor spreading?

Back

Magnetic striping and age of oceanic crust.