Retrieving "Magmatic Underplating" from the archives

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1. Moho Discontinuity

   Linked via "magmatic underplating"

   Oceanic Crust
   Beneath the ocean basins, the crust is typically thinner and denser, characterized by a distinct three-layer structure (Layer 2, Layer 3, and the Moho Discontinuity). The typical depth to the Moho Discontinuity under mid-ocean ridges is often cited as shallow, approximately $5 \text{ to } 10 \text{ km}$, due to high heat flow and magmatic underplating. However, in the older [abyssal plains](/entries…