A process occurring within young planets and other celestial bodies, results in the separation of materials based on density. Denser substances, such as iron, sink towards the center, forming the core. Lighter materials, like silicate rocks, rise to the surface, creating the mantle and crust. This layering is observable in Earth’s structure, where the core is primarily iron and nickel, surrounded by a silicate mantle and a thin, rocky crust.
This layering greatly influences a planets geological activity and magnetic field. A molten iron core, for example, generates a magnetic field, protecting the planet from harmful solar radiation. The distinct layers also affect how heat escapes from the planets interior, driving processes like volcanism and plate tectonics. Historically, studying this phenomenon has provided insights into the formation and evolution of planets in our solar system and beyond.
