Earth’s Mechanical Structure: Lithosphere, Asthenosphere & Interior Layers #163922 (License: Personal Use)

This educational diagram depicts Earth’s mechanical structure, distinguishing the rigid outer lithosphere (including crust and upper mantle) from the more plastic asthenosphere beneath it. Below lies the deeper mantle and core, shown in concentric layers, emphasizing how tectonic plates move atop the asthenosphere. The ocean and continental crust are labeled to clarify surface variations.

Used in earth science textbooks, classroom presentations, and online geology resources to explain plate tectonics and Earth’s layered structure; targets students, educators, and curious learners seeking foundational knowledge.