Plate Tectonics

The theory that explains the structure and movement of the Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

The process by which new oceanic crust is formed at mid-ocean ridges and older crust is pushed away, contributing to the movement of tectonic plates.

The hypothesis that continents have moved over geological time and were once joined together in a single landmass called Pangaea.

The study of the magnetic properties of rocks to determine the historical changes in Earth's magnetic field and the movement of tectonic plates.

A type of plate boundary where two tectonic plates slide past each other horizontally, causing earthquakes.

A tectonic plate boundary where two plates move away from each other, leading to the formation of new crust, such as at mid-ocean ridges.

A tectonic plate boundary where two plates collide, leading to subduction or mountain building.

The process by which one tectonic plate moves under another plate and sinks into the mantle, often causing volcanic activity.

An underwater mountain range formed by divergent tectonic plates, where new oceanic crust is created.

A well-known transform fault boundary located in California, where the Pacific Plate and North American Plate slide past each other.