Oceanic Crust Structure Diagram - Layers from Mantle to Seafloor #3738100 (License: Personal Use)

The image shows a vertical cross-section of oceanic crust, starting with ultramafic peridotite in the mantle, overlain by gabbro (coarse-grained intrusive rock), then sheeted dykes (vertical magma intrusions), pillow lavas (extrusive basaltic flows), and capped by deep marine sediments. Orange flame-like features represent rising magma feeding the seafloor spreading process. Depth increases downward, indicating typical crustal thickness (~5-10 km).

Used in earth science education, textbooks, and online resources explaining plate tectonics and seafloor formation; matches user intent for understanding oceanic lithosphere composition and genesis at divergent boundaries.