Plate Boundaries Flashcard

Front

What is plate tectonics?

Back

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

Front

What happens at a divergent boundary?

Back

Plates move away from each other, leading to the formation of new crust as magma rises to the surface.

Front

What is a convergent boundary?

Back

A type of plate boundary where two plates collide, often resulting in the formation of mountains or subduction zones.

Front

Define transform boundary.

Back

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

Front

How do convergent boundaries lead to mountain formation?

Back

By plates colliding and pushing upwards, resulting in the uplift of land.

Front

What is subduction?

Back

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

Front

What geological features are commonly associated with divergent boundaries?

Back

Mid-ocean ridges and rift valleys.

Front

What is the primary cause of earthquakes at transform boundaries?

Back

The friction and stress that build up as plates slide past each other.

Front

What is the role of magma in plate tectonics?

Back

Magma rises to create new crust at divergent boundaries and can lead to volcanic activity.

Front

What is a subduction zone?

Back

An area where one tectonic plate is being forced under another, often leading to volcanic activity.