2.2/3 Geologic Processes & Dating

Front

What is the Outer Core?

Back

The Outer Core is a liquid layer of the Earth that is responsible for generating the Earth's magnetic field.

Front

How are volcanoes formed on Earth?

Back

Volcanoes are formed when hot magma in the mantle convects slowly, moving as heat circulates from the core to the surface, which can pull or push tectonic plates.

Front

List the layers of Earth in order from the outermost to the innermost.

Back

Crust -> Mantle (Lithosphere -> Asthenosphere) -> Outer Core -> Inner Core.

Front

What does the Law of Superposition state about rock layers?

Back

According to the Law of Superposition, the layer closest to the mantle is always the oldest.

Front

What type of boundary do the Pacific and North American plates form in California?

Back

The Pacific and North American plates form a Transform Boundary, where earthquakes occur due to the plates sliding past each other.

Front

What is the Mantle?

Back

The Mantle is the thick layer of the Earth located between the crust and the outer core, consisting of semi-solid rock that flows slowly.

Front

What is the Inner Core?

Back

The Inner Core is the solid innermost layer of the Earth, composed mainly of iron and nickel, and is extremely hot.

Front

What is a Transform Boundary?

Back

A Transform Boundary is a type of tectonic plate boundary where two plates slide past each other, often causing earthquakes.

Front

What is a Divergent Boundary?

Back

A Divergent Boundary is where two tectonic plates move away from each other, often creating new crust as magma rises to the surface.

Front

What is a Subductive Boundary?

Back

A Subductive Boundary is where one tectonic plate moves under another, often leading to volcanic activity and earthquakes.