Main Layers of the Earth and Their Characteristics

The lower mantle is the deepest part of the mantle, experiencing immense pressure and heat.

The continental crust is thicker and less dense than oceanic crust, composed of granite.

The outer core generates Earth's magnetic field through the flow of liquid iron and nickel.

The oceanic crust is thinner and denser, composed of basalt.

The inner core is crucial for Earth's magnetic field and is composed of solid iron and nickel under extreme pressure.

The upper mantle includes the asthenosphere, which allows tectonic plates to move.