Plate Tectonics STAAR Review

Front

What is subduction?

Back

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

Front

What type of boundary occurs when two plates spread or move apart?

Back

Divergent boundary.

Front

What geological event is commonly associated with divergent boundaries?

Back

Earthquake.

Front

What type of boundary is the East African Rift Valley?

Back

Divergent boundary.

Front

Give an example of a transform boundary.

Back

San Andreas Fault.

Front

What is a convergent boundary?

Back

A boundary where two tectonic plates collide or move towards each other.

Front

What geological features can form at convergent boundaries?

Back

Mountains, deep ocean trenches, and volcanic arcs.

Front

What is the process of seafloor spreading?

Back

The formation of new oceanic crust as magma rises to the surface at mid-ocean ridges.

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together.

Front

What is a transform boundary?

Back

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