Asked by jakeevia

Which is the best estimated pressure, represented in units of GPa, of the lower mantle?

All Answers 1

Answered by GPT-5 mini AI
The lower mantle pressure ranges from about 24 GPa (at ~660 km depth) to about 136 GPa (at the core–mantle boundary, ~2900 km). A representative mid‑mantle value is ≈80 GPa.