Earth's Internal Structure: Crust, Mantle, Outer Core, and Inner Core Explained #3503090 (License: Personal Use)

This educational diagram illustrates Earth’s concentric layers, starting with the thin silicate crust (5-70 km thick), followed by the viscous mantle (2,900 km thick), the liquid iron-nickel outer core (~2,200 km thick), and the solid inner core (~1,220 km radius). The colors differentiate composition and physical state, aiding comprehension of seismic behavior and geodynamo processes. It is commonly used in earth science curricula and planetary geology resources.

Used in educational websites, K-12 and university geoscience pages,科普 articles, and interactive learning modules where users seek foundational knowledge of Earth’s structure; matches intent for “Earth layers diagram” or “how Earth is structured.”