Chapter 13 Earth Science Vocabulary

The outer solid shell of Earth that extends to a depth of about 100 km.

Converging Boundary where one plate is plunging beneath another, overriding plate.

Theory of the formation and movement of the rigid pieces, or plates, that covered Earth.

The area where lithospheric plates are moving apart.

A boundary that forms when two lithospheric plates come together, on converge.

The pushing of thin, horizontal sheets of rock from continental margins over great distances.

The ancient core of a continent.

A converging boundary that is formed when two continents collide.

A large block of lithosphere that has been moved often thousands of km.

A break or crack in Earth's crust along which movement has occurred.

The partially melted layer of the mantle that underlies the lithosphere

The spreading center where two lithospheric plates are moving apart.