Plate Tectonics Review

Front

What geological features are created by divergent plate movement?

Back

Rifts and ocean ridges.

Front

What are tectonic plates?

Back

The pieces of the lithosphere that move around on top of the asthenosphere.

Front

What is a rift valley?

Back

A valley formed by the separation of tectonic plates.

Front

What geological features are created by convergent plate movement?

Back

Mountains.

Front

Which type of crust is more dense: younger or older oceanic crust?

Back

Older oceanic crust.

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The semi-fluid layer of the mantle beneath the lithosphere that allows tectonic plates to move.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and is forced into the mantle.

Front

What are transform boundaries?

Back

Boundaries where two tectonic plates slide past each other horizontally.

Front

What is the Ring of Fire?

Back

A major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur.