Plate Boundaries

Front

What is subduction?

Back

The process where oceanic crust slides under another plate and is melted.

Front

Where does sea floor spreading occur?

Back

At divergent plate boundaries (oceanic vs. oceanic).

Front

What causes the movement of tectonic plates?

Back

Convection currents in the Asthenosphere.

Front

What is the relationship between earthquakes and plate boundaries?

Back

Earthquakes occur in concentrated areas that coincide with plate boundaries, providing evidence for the theory of plate tectonics.

Front

What type of boundary is created by convection currents?

Back

Convergent boundary.

Front

Define divergent boundary.

Back

A plate boundary where two tectonic plates move away from each other, often resulting in seafloor spreading.

Front

Define convergent boundary.

Back

A plate boundary where two tectonic plates move towards each other, often resulting in subduction or mountain formation.

Front

What is a transform boundary?

Back

A plate boundary where two tectonic plates slide past each other horizontally.

Front

What is the Asthenosphere?

Back

The semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Front

What is seafloor spreading?

Back

The process by which new oceanic crust is formed at divergent boundaries as magma rises to the surface.