Plate Tectonics

Front

What are plate tectonics?

Back

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.

Front

What is a subduction zone?

Back

A region where one tectonic plate moves under another plate and sinks into the mantle, often leading to volcanic activity.

Front

What occurs at divergent boundaries?

Back

Tectonic plates move apart, allowing magma to rise and create new crust, often forming mid-ocean ridges.

Front

What is convection in the context of plate tectonics?

Back

The process of hot material rising and cooler material sinking in circular patterns, driving the movement of tectonic plates.

Front

What are convergent boundaries?

Back

Regions where tectonic plates collide, leading to subduction, mountain building, or volcanic activity.

Front

What is the difference between oceanic and continental crust?

Back

Oceanic crust is denser and thinner, while continental crust is thicker and less dense.

Front

What is a transform boundary?

Back

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

Front

What geological features are formed at divergent boundaries?

Back

Mid-ocean ridges, rift valleys, and new oceanic crust.

Front

What happens at oceanic-continental convergent boundaries?

Back

The denser oceanic plate subducts beneath the continental plate, leading to volcanic activity and mountain formation.

Front

What are the primary forces driving plate tectonics?

Back

Convection currents in the mantle, gravity, and slab pull.